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Lightbulb "From the Earth to The Moon" an AMSO 1.17 Apollo 11 Full Mission Tutorial Using IMFD
by polaris149Tiberius 04-16-2008, 06:46 PM

"From the Earth to The Moon" an AMSO 1.17 Apollo 11 Full Mission Tutorial Using IMFD 5.1h
By Adam RodrigueZ (polaris149Tiberius)
Date of release: 04-16-2008 at 11:46 AM CST (GMT-6)
Revision 1.02 07-2-2008 at 10:49 AM CST(GMT-6)
Launch platforms: AMSO's AS-506 Saturn V Stack
(Note: This tutorial is for use with ArcSoft's AMSO v1.15 -v1.17 and uses IMFD 5.1h-m)

Under construction!!
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"From the Earth to The Moon" an AMSO 1.17 Apollo 11 Full Mission Tutorial Using IMFD
By Adam RodrigueZ (polaris149Tiberius)
Revision 07-2-2008 at 10:50 AM CST(GMT-6)

Forward: I like knowing what will happen ahead of time and Orbiter is a great way of understanding how certain actions at certain times will bring about certain outcomes while doing the same action a second later can mean a completely different outcome. Understanding Apollo 11 helps when proving cynical disbelievers wrong about the way things work up there and how it wasn't impossible to go to the moon in the late 1960s.
This tutorial will be my legacy and as Jim Lovel said in the movie Apollo 13, "Going to the moon isn't a miracle, we just decided to go". I have personally enjoyed turning myself into a fun-loving planet-hoping rocket scientist from hell and I wouldn’t mind showing other people how to kick some serious solar system ass so this tutorial is the product of that line of thinking.

Doing this tutorial will help with all that AND allow you to explain to yourself some things about spaceflight. When NASA goes back to the moon in 2013, readers of this tutorial will have the knowledge of how it is done, what energy requirements are needed, how timming is everything, how fun it is to be on another celestial body, and just a bit more understanding of how NASA did it the first time.

This tutorial I am completing with some help from Jarmo Nikkanen (IMFD author) and will endeavor to be as close to the original Apollo 11 flight plan (using the Apollo 11 Timeline) as possible for all users whether your new to Orbiter or a vetran user.
For all of you Apollo 11 historians who want to re-create the mission for realism purposes, this can be a good tutorial to get started but sadly it will not be as historical as you may wish due to the limitations of AMSO, BUT its pretty darn close and can serve to be an extreamly visually pleasing mission.

This flight is for use with Orbiter 2006 P1 (build 060929) w/sound 3.5, AMSO v 1.15 to v1.17, and IMFD v5.1h to 5.1m and it will try and meet the all the relavant mission brief goals that the original Apollo 11 mission achieved.
This includes:
1. A launch window that puts the Apollo 11 Lunar Excursion Module (LEM) on the surface when Tranquillity Base is illuminated by sunlight.
2. A Trans Lunar Insertion(TLI) that puts the vehicle in a Free-return trajectory flight path in case something goes wrong during the flight.
3. Done in a time frame that that accounts for fuel and consumable limitations which will only support a 3 man crew for the duration of a nominal flight.

This tutorial will get you to the moon at an almost exact historical time and a landing time close to when Neil Alden Armstrong and Edwin Eugene 'Buzz' Aldrin, Jr landed on July 20 1969 and Command Module Pilot Michael Collins. This tutorial will also allow the flight to complete with a safe re-entry and a landing in the Pacific Ocean close to the location where the crew was recovered at nearly the same time.
This tutorial tries to re-create the Apollo 11 mission in a historical way to give the pilot similar views and experiences the actual crew would have experianced during the REAL flight.

As a preperation to the flight I recommend watching this video to see some of the actual Apollo program's greatest moments.

Well worth watching this 08min 22seconds long video
Video Apollo 11 - The Moon shot by Sonicboom.com

Keep checking back to this thread for any further changes that may be made to this tutorial, as it will be updated as I gather information and compile it for posting here. Feel free to print this tutorial for use. You may also re-post this tutorial elsewhere un-edited and as long as you include credit to me and the others who are listed in the special thanks area.
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That said, we are going to have to agree that AMSO was not meant to be an exact historical rendition of the actual Apollo flights. It has its own Auto Pilot (AP), which gets you into Low Earth Orbit (LEO), but then you must use some external MFD to calculate your TLI if you want to do anything but orbit the Earth.

This tutorial will use IMFD for this and I highly recommend it for this and other interplanetary flights. After getting to the moon you can use the AMSO AP again to land, but you will want IMFD again in order to get you and your crew home or you will orbit the moon indefinately.

The Interplanetary Multifunction Display "IMFD":
Possibly the most accurate, most powerful, and most useful MFD I have seen yet is the IMFD by Jarmo Nikkanen and when you realize that it’s a lot harder to complete a historical mission to the Moon in AMSO than you ever guessed, you might end up browsing an Orbiter forum for information as I did.

Some very nice people gave me this information and I in return must pass it along to those of you who want it as well. The catch is, if somone ever wants to know something you know, you must pass it on to them just as I am to you.
Do what you can to help others to know what you have learned and I will be happy. What I can tell you is that if you want to send something to the moon and back again safely in Orbiter, IMFD is the tool you want.

Achievements and Needs:
When you realize that hitting the moon at the right time and location is a lot like hitting a basket ball with a pencil after throwing them both up from either side of a house at similar times and the place the pencil must hit the basketball is less than the width of a slice of notebook paper or your crew dies, you may begin to understand what achievements NASA made and what Orbiter and yourself are capable of doing.
You may want to take a moment and think about what it is you will need to know to begin this journey back in time.
If you need...
If your having trouble with getting to the moon, this tutorial will get you there.
If your having trouble learning about how to use IMFD then this tutorial will show you how.
If your having trouble landing on the Moon, this tutorial will get you on the surface at almost the same time as the real Apollo 11 Lander.
If your having trouble rendezvousing with the CM, this tutorial will get you to within 30m at zero velocity relative to the CM for CM/LM dock.
If your having trouble docking the CM to the LM, this tutorial will have you using the sights in AMSO's virtual cockpit to dock.
If your having trouble with the TEI burn to go home, this tutorial will get you home safely at close to a historical time.
If your having trouble doing any kind of Mid Course Correction(MCC) burns that are optimal for fuel conservation as well as achieving a correct re-enty corridor, this tutorial will teach you about trim and course correction without using an autopilot.
If your slamming into the atmosphere at 25,000 miles per hour (Mach 35)and either bouncing off into space or coming in too shallow and burning up in the atmosphere, this tutorial will get you on the ground safe and in a fairly close location to the historical site of recovery.
If your looking for a tutorial that will show you how to pilot the chopper to pickup the crew, sadly you’ve come to the wrong tutorial.

What you can expect:
This tutorial when its finished will include:
A nominal launch to LEO, TLI to the moon, a landing, LM ascent and rendezvous with the orbiting vehicle, jettison of LM and TEI plus a few course corrections to ensure you enter earths atmosphere at the nominal angel of attack (AoA), reentry and a safe landing in the ocean at near the historical location.

I will further advise the reader on the minimal tools needed to achieve this mission and which will be fully documented for use on your trip into the depths of lunar space and back. Any further scientific micro-testing or comparisons to the actual Apollo 11 flight will sadly cause you to pound your head into the screen at 9.8m/s^2 and damage your simulator.

Requirements:



This tutorial was created and tested with the Orbiter build and addons listed below and installed in the order shown here which had no conflicts:There were no atmospheric enhancers or orbital stability mods installed and I decided for this tutorial that I wouldn’t install any special camera add-ons that allowed me take some awesome pictures of the lunar surface so If you don’t want to see the LEM sitting on the moon from the CM in orbit, then don’t install
TelescopeMFD_0.1">TelescopeMFD_0.1
or
CameraMFD 0.12 Beta">CameraMFD 0.12 Beta

. And if you don’t want to know what stars the Apollo 11 navigator had to use to check his guidance computer's trajectory and telemetry and that it was a correct burn attitude then don’t go get
Attitude MFD V3.2">Attitude MFD V3.2
. In fact, don’t learn physics or Newton’s Third Law of Motion or look at any Leonardo Divinci’s drawings and don’t ever read any Shakespeare. You know what, just go hide in your room and forget you ever saw this simulator cuz you’re not going to like loosing this game. It has no bullets or lasers to shoot and there is no score to gain. Ths simulator is for personal achievment saticfaction. When you realize that your at the moon and you got here with Sir Isaac Newton in the driver's seat most of the way, you may decide that this game is not a game but a labratory for testing your knowledge of physics and orbital mechanics.
For the rest of you -your EVA suit is waiting for you down the hall on the right in the PRE-LAUNCH WHITE ROOM so get suited up and get for a little jolt fellas.

What you will get that’s NOT Historical:
Enjoy this very long and detailed instruction set for a flight that for me was nominal and historical up to the undock of the Lunar Excursion Module (LEM). Various attempts were made to make the CSM end up near the location it would have been at the point of TEI for a historical recovery back on Earth but sadly the flight is un-predictable after this point. You may keep this in mind when you are rendezvousing with the CM because that is when the AMSO rendezvous AP changes the time line. Still, I hope you like what I hope will be one of the BEST ways I have found to fly Apollo 11.

But it was not able to actually BE EXACTLY historical. I can’t stress to you how unimportant it is that you do this flight the way I describe below. Know only that these instructions will help you to piece together a flight of your own however if you follow them correctly, you should end up at home around the same time Apollo 11 did. I will say to you this: May the force be with you -always, and if for some accidental reason you start to pitch past zero degrees during your launch and begin to head back into the Atlantic, you might want to hit the “J “ key. Lets get started shall we?








Things you will need to know about:
  • All Ground Elapsed Times (GETs) will be of the format: GET 000:00:00.00 which from left to right will read: Hours: Minutes: Seconds, and Hundredths of a second (hhh:mm:ss.hshs)
  • Speeding up your time scale can cause IMFD to make bad calculations so when doing a burn or making critical calculations, be sure to be at x 1.00.
  • Speeding up time while the Orbiter HUD pilot is pointing in Normal (-), Normal (+), Prograde, Retrograde, or any of the other settings at the bottom of your glass cockpit will cause a tremendous loss of fuel. NEVER do this or you will be starting over from your last quick save.
  • IMFD has a bit of a problem keeping its attitude hold and some calculations when in Virtual Cockpit Mode. Please do all burns in Glass Cockpit mode for accuracy. It is unknown why this happens.
  • AMSO’s usage is simple. It involves mainly only three keys:
    - "J" key, called "Action" key.
    - "K" key, called "Alternate Action" key.
    - "M" key, called "Focus Toggle" key.
Pre-Flight Steps for Orbiter 2006 P1
You will need to open Orbiter and configure it for some settings that you may not normally set so I will have you to make some small changes to Orbiter that will allow for a more realistic experience.
In the Orbiter Launch pad -PARAMETERS tab, you must have these settings:
1. Complex flight model -checked.
2. Limited fuel -checked.
3. Non spherical gravity sources -checked.
4. Gravity-gradient torque -selected.
(While your here: I like a star count of about 7000 -14,000 any more than that fries my 286's video card. Vessel shadows, object shadows, specular reflections, particle streams and the reentry flames are all good for this viewing in AMSO and should not cause your video card to have a problem as long as you use a 128Mb video card.)

Preflight Steps -Open Your Orbiter Simulator and Suit Up for Flight

Step 1. Open your Orbiter Simulator and in the SCENARIO tab double click on the AMSO folder.
Step 2. Double click on the ALL MISSIONS LIFT OFF folder and select this scenario for use with this tutorial:

"Apollo 11"
Launch Apollo-11 mission from Launch complex 39A. Date 16 July 1969, launch time: 13:32 UT, azimut: 72.058 degrees.
You are 5 minutes 30 seconds before launch time.
At precisely minus 5 minutes, press "J" action key to retract launch tower arms. Attention, from this point, if you press "J" action key at any time, you will abort the flight...
(This tutorial begins with this scenario and should be flown using either this scenario in AMSO folder or the first scenario listed in the AS-506 folder. They are both the same scenario)
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Part 1 - Apollo 11 AS-506 Liftoff and Earth Orbit Insertion (EOI)

This part is simple but for those of you that do not know the AMSO launch process this section is here for you to complete a nominal Auto Piloted (AP) Earth Orbit Insertion (EOI) in to Low Earth Orbit (LEO). Earth orbit was achieved around Ground Elapsed Time (GET) 000:11:44.00. Apollo 11 was then cleared for LEO at around GET 000:12:15.00. With this tutorial section you will achieve a very similar orbit to the historical orbit altitudes (alt), inclination (Inc), and cutoff time.

Step 1. PRESS "J" to retract the tower.
Step 2. Wait until UT 13:31:50 to PRESS "K" for Launch Sequence.
This starts the count down to launch and there is no going back after this. If your launch fails for any reason or the AP in the bottom left corner disappears after lift off you may hit the "J" key to abort up until the time the tower jet fires. After that the recovery of your crew may not be guaranteed.

BE ADVISED!! DO NOT press any flight controls during lift-off (ground zero), launch, or Earth Orbit Insertion program. No buttons can be pressed that change your ship's movement when the AP is doing the launch or it will disable the AP without warning.(View from external views and glass cockpit or virtual 3D cockpit are my favorites).

AT: GET 000:00:00.00 Clock is ticking and Apollo 11 is GO for launch. All engines should be GO at ground zero.
(Soon, I will detail the specifics of Apollo 11's EOI launch program's flight altitudes, burn vectors, and pitch,roll, and yaw attitude information as a function of time for doing a manual launch).

Step 3. Sit back and watch your very nominal AMSO Auto Pilot (AP) launch into space which will occur for the next 12 minutes 15 seconds or so.
(Note: You should see an "AP" in the bottom left corner of your screen from AMSO's Autopilot the entire time of your launch up to Single Engine Cut Off or "SECO".)
This launch gets you and your crew into an almost perfectly circular LEO automatically at around a 187.5 X 188.1 km orbit. Your flight azimuth from the roll program starts at 72.058°. More detail from Align Plane MFD will show a final orbital Inclination (Inc) of 9.00* at cutoff and a LAN of 353.44*. Orbit MFD will show that your orbital period is around 5.286k seconds indicated by the letter tango"T". This means that every 01:28:06 (1 hour, 28 minutes, 6 seconds) you should complete 1 orbit around the earth. Handy knowledge if you plan to follow Columbia's TLI at 1.5 orbits like they did in 1969.

Step 4. When the AMSO AP finishes your insertion into Low Earth Orbit (LEO) you will hear the Single Engine Cut Off (SECO). Then you will receive the "go for orbit" radio communication on Channel 1 from Houston.
You should be located to the east of Florida. You will need to pass up Florida 1 more time and then wait until you begin to approach Austrailia also for the second time. At this time you may follow the TLI preperations proceedure below. (At GET 001:52:52.00 or so you pass Moon Plane Cross Range 0.0. This is 1 complete orbit.)

A. Using GET for TLI Preperations
Step 5. IF not already set, set your Left Multi Function Display (LMFD) to Orbiter's Map Default Program MFD.
You may want to select the target button (TGT) as being "AS-506" to select your own ship as the target vessel. Now you must watch your orbits until you have gone around the Earth at least 1.25 times.
This works out to about GET 002:21:00.00 or so. If you use Time Warp you will need to slow Time Warp down to 1X at this GET in order to go to the next step. If you are about to pass over Austrailia and your GET is around the GET listed above, then you are ready for the next phase: Part 2 - Apollo 11 AS-506 Trans Lunar Insertion (TLI).

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Part 2 - Apollo 11 AS-506 Trans Lunar Insertion (TLI)

GET 002:21:00.00 is about 1.25 orbits from the time you are Go for orbit. You will now begin preperations for a Trans-Lunar Insertion(TLI) Burn. This is going to require the use of the powerful and very accurate IMFD. You should be about to approach the western coast of Austrailia so ready or not your going to the moon.

A. Set up IMFD to be more realistic for 1969
Step 1. Open IMFD in the Left Multifunction Display (LMFD) (pressing select, then “Interplanetary”).
Step 2. Press MNU to access the IMFD’s menu.
Step 3. Press MOD to modify the configuration.
(Here we are going to set the parameters for making IMFD use Apollo-like attitude correction which is more like a "point and shoot" configuration. The next few steps (Step 4 and 5) are optional but mandatory if you wish to continue with this tutorial.
Step 4. Set LambertAP mode to Apollo P30.
(Next step sets IMFD to do a more realistic Apollo-like burn as the real Apollo burns were done. The throttle-down of the main engines were cut offs to a thousandths of a second and this setting makes IMFD cutoff with the same accuracy).
Step 5. Set AB Throttle down to 0.00 using the “Set” button (<) and entering “0”.
(Note: Make sure to enter 0 here and then press the keyboard Enter not the Numpad Enter because if you do you will ignite your thrusters and this would be very bad)
Step 6. When these steps are done press MNU.


B. Select the Moon as the Target Object for Interplanetary Flight
Step 7. Open Course program.
Step 8. Select Target Intercept. Press Set, then TGT.
Step 9. Enter “Moon”

Step 10. In the Right MFD (RMFD), open IMFD("Interplanetary").
Step 11. Press MNU ("-")
Step 12. Share the two IMFDs by pressing “PG” then entering “0” for the ID of the LMFD-IMFD
(You can see the ID of the IMFD in the top right hand corner in the MNU)

C. Set up IMFD Map to Show More Accuracy
Step 13. Select Map.
Step 14. Press "PRJ" to set the projection to self from Equator.
Step 15. Press "MOD" three times to get into the IMFD's Map Program Configuration window.
Step 16. Set the accuracy to 1.00 by pressing "Nxt"
(Note: If you crash to the desktop or Save your scenario and come back to finish, you must set this again).
Step 17. Press "MOD" to see the new configured IMFD Map view.
Step 18. Press "Dsp"
Step 19. Press "PG" then "Plan" and "Soi" and "Int" then "Find"
Step 20. Zoom into planet Earth (press "PG" then "Z+" to zoom in) so that you can see yourself orbiting the Earth.

D. Set up RMFD IMFD -Map to Show The Lunar Intercept Point
Step 21. Press "Sel" to select the "Ref" to "Moon (weak)" in RMFD.
Step 22. Press "Cnt" to open the center dialoge box.
Step 23. Enter "p-moon" to center on the moon's PeriCynthion (PC)
(Note: the RMFD might still show the orbit around earth or a short ejection vector or maybe focus on the moon where it is now. This is ok. Dont worry as soon as you set the target and the correct parameters for the correct interception in the LMFD, you should be able to see the moon where it will be at its PC).

E. Set up the IMFD Navagation Computer to Calculate a Free-Return Lunar Interctption
(Note: if you already did steps 7, 8, and 9 from section B above, then you can skip to Step 26 below).
Step 24. You should have the LMFD, already set to Course Program. If not select it now.
Step 25. If you dont already have the moon selected as the target, select "Tgt" and enter "Moon" in the dialoge box now.
Step 26. Set the LMFD's Operation modes to: "Vel. Frame" by navigating between the 2 pages and useing "Nxt", "Prev", "Set", "(+)", and "(-)" buttons.
Step 27. Set the default ammounts for a Free-Return" flight by pressing setting these ammounts: (You will use the "Set" button for entering these ammounts)
Lon: 4.00
Lat : 4.00
Rad: 8.00M
(Note: Make sure you set the Rad to 8M at this point. If you do not you may see some crazy plan going no where near the moon)

F. Begin Course Program Calculations for Trans Lunar Insertion Burn
Step 28. Step to the next page using the "PG" button.
Step 29. Set the GET under "Intercept" to 75:54:28 which gives a TIn of about 265.3K
Step 30. Set the "Realtime" to "Off-Axis"
Step 31. Set the "TEj" to an amount that makes the Entroute "Tot" the lowest it can be.
(Note: Usually IMFD 5.1d Dec 16 2007 will set the TEj well after a time that is economically efficient so you will most likely be setting an earlier time than the default suggested time of ejection. Also, if you minus the TEj enough the "Tot" amount will begin to go back up, go back to the lower amount. My Tot was as low as 4.353K before fine tunning the PeA info for the TLI.
When you set these amounts in the LMFD you should begin to see the RMFD's Map show the moon's PC ("moon-pe") at the center and then you should see the base listed as "Tranquillity")
Step 32. Step up or step down the Rad in the LMFD to make the PeA in the RMFD to show 80.0 km.
From AMSO's "FreeReturn.doc":
In the Earth-Moon system free-return trajectory requires a transfer time higher than 240k. (Typical = 250k-290k) Shorter transfer time would mean that the vessel will approach the moon with higher orbital velocity and in that case it must pass the lunar surface from closer distance in order to get into a proper earth return.
If the transfer time is longer the vessel will have a lower orbital velocity and it must pass the lunar surface from greater distance.
The transfer time to target point in other words Time Of Flight (TOF) = TIn - TEj

Step 33. Step up or down the "Lat" in the LMFD to make the "EqI" in the RMFD as close to 180.00 as possible.
(Note: for Apollo 11 this amount wont go very much higher than 175.00. I was able to get an EqI of 176.47*).
Step 34. Step down to the Rad in the LMFD again to adjust the PeA in RMFD Map back down to 80.0k.

F. Fine tune your Course Program for TLI
For the next few steps it will depend grately what the RMFD Map shows. You may need to do the following steps several times to get the amounts to be correct and the computer will take about 1 second to calculate its amounts after pressing your button so be patient with this next part.

Step 35A. Set the Adjustment amount to x10 by pressing the "Adj" button.

Step 35B. IF the GET in RMFD Map shows a GET HIGHER than 75:54:28 step UP the "Lon" 1 step ONLY (at x10).
Step 35C. IF the GET in RMFD Map shows a GET LOWER than 75:54:28 step DOWN the "Lon" 1 step ONLY (at x10).

Step 35D. Set your Adj amount back down to x1.
Step 35E. Step UP or DOWN your Rad to adjust your PeA in RMFD Map to be 80.0 Km again or as close as you can get to it.

Step 35F. Check your GET in RMFD Map. If it is NOT within a few seconds of GET 75:54:28, then redo Steps 35 A - F until your GET is 75:54:28 (+/- a few seconds) and your PeA is around 80.0 Km (+/- 0.5 Km).
(Note: If you are unable to get close to the correct PeA and GET time, try using an Adj amount of x1 for both parameters. This will allow you to further fine tune them to acceptable amounts. You must get the GET down to +/- 5 seconds within 75:54:28 and your PeA should be around 80.0 km (+/- 0.5 Km) in order to do your TLI burn.)

When the above process is finished, you will have met the same flight parameters for a free-return trajectory as the actual Apollo 11 flight go to the next step.

G. Set your IMFD Auto Pilot to Fire Main Engines for Trans Lunar Ejection (TLI)
Step 36. Step to the next page and press "AB" for the IMFD to conduct an auto-burn at your set ejection time and burn vector.
(Note: because we have set IMFD's throttle down to .01, your Burn Time ("BT") should be exactly enough to get you to the Moon at the right time and altitude above the Moon. You can see this information if you press "BV" for your Burn Vector. The burn will be accurate to a thousandths of a second which is how the Apollo 11 Apollo Guidance Computer (AGC) did it in 1969).

Part 3 - Lunar Module Extraction and Jettison of The Saturn V Stage 3.
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"Com'mon Rookie park that thing" "If he cant dock that CSM, we dont have a mission"
Ok your now on the way to the moon. About 1/2 hour after finishing the TLI Apollo 11 detatched from the S-IVB third stage, pitched up, and docked with the LEM still lodged inside the S-IVB third stage. The CM pilot Michael Collins then seperated the LEM from the rocket stage and began the barbecue roll for their coast phase. To do this we will need the help of the included Dock MFD and the Apollo docking mechanism.

STEP 1. You will face the front of the spacecraft towards the sun. This is to ensure that you have plenty of light to see the docking target on the LEM. You can use Attitude MFD to orient your nose toward the sun by pressing MOD twice until the Attitude MFD is in target mode. Press TGT and then enter "Sun" into the data window. Now press "HLD" to hold the ship's attitude toward the Sun. After Attitude MFD finds the sun for you, you can press HLD again to release the hold attitude on the sun. Press "KillRot" and the proceed to STEP2.

STEP 2. You will now press "K" to detach from the S-IVB third stage. You may want to be in external mode to see the awesome AMSO animation of the seperation process. You should hear Bill Paxton say "Houston, we have a good seperation" from the Apollo 13 movie. Wait a few seconds and then proceed to STEP 3.

STEP 3. Switch to glass cockpit mode and then press F8 until you can see the virtual cockpit. (Lots of buttons) Now press CTRL + ALT + Up Button on your directional buttons. (This is not the numpad UP/8 button) You should be able to see the docking mechanism in front of you.




STEP 4. Pitch up by hitting Numpad 2 several times. While you pitch up you can open an external MFD and set it to Dock MFD. Set the target to the S-IVB docking port 1.

STEP 5. When you see the S-IVB third stage with the LEM inside you should null your pitch rate by pressing Numpad 5. Try and get your targetting rectical to slightly to the left and above the LEM's docking collar.

STEP 6. Now roll to where the LEM's targeting mechanism is in your targeting recticle or close to it. Null your roll and then press Numpad "/" to switch to translation thrusters.



STEP 7. Begin to thrust forward by pressing Numpad 6.

STEP 8. Ok now here is when you must use your own piloting skill. use the Dock MFD and your viewer to dock the CSM to the LEM. When done, press "K" to extract the LEM from the S-IVB third stage hull.

Part 4 - Apollo 11 AS-506 TLI Coast.

For your trans lunar coast period, you will want to begin a Passive Thermal Control (PTC), also known as "barbecue" mode roll proceedure of about 0.25 degrees per second. This can been seen using AttitudeMFD.
NASA called this the "barbecue roll". Because the radiators for keeping the emmence electronics which were a miss mesh of 1969 avionics and computer simiconductors along with gimbaling motors and other flight instruments, the two vehicles needed to be cooled off at times and heated up at other times.
The "Barbecue Roll" manuver kept the radiators at a good temprature so as not to overheat or undercool them. As it turns out, the Barbecue Roll also helps keep your vehicles in a stable flight as it spins its way to the moon. You should press CTRL + Numpad 6 (4 times) to achieve this slow roll proceedure. It is not necessary, but again if you want realism and you want to see what the Apollo 11 astronauts saw through thier windows on the way to the moon, you will want to establish this roll program during your coast time to the moon.

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Part 5 Apollo 11 Mid Course Corrections

You will need to set your RMFD back to IMFD Map Program. Zoom out and make sure that SOI is set to on. When you pass the Earth's SOI you will want to check your PeA for the moon. If it has changed from 80km to any other amount, you must follow the steps below to correct your trajectory to the moon. If it is still 80km then you will not need a course correction at this point.
MCC #1 Proceedure
STEP 1. Change your LMFD to IMFD if its not already there.
STEP 2. Select Menu and then Course.
STEP 3. Select Delta Velocity.
STEP 4. Set the reference to Moon.
STEP 5. Set the dV to Zero "0"
STEP 6. Step up or down this ammount from 0.000 to an amount that gives the PeA in the R IMFD Map program an altitude of 80km.
STEP 7. Press AB in the LMFD to burn the correction burn for this MCC #1.



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Part 6 - Loss of Signal (LOS) and Lunar Orbit Insertion (LOI)
Historically, the Loss of Signal was a good test for astronauts to determine if they are on schedule and arriving at the correct telemetry. I will show you how to determine when your LOS occurs and how to know if your on schedule or not.
Loss Of Signal Timming Calculation
If you made a mid course correction then this process wont apply. However if you didnt then there is a simple equation that will tell you when you are supposed to loose signal.
To Be continued soon.

Lunar Orbit Insertion (LOI) Proceedure:
This is a very important proceedure. If the Apollo 11 crew didnt complete the LOI correctly and on time (because they were out of communication with NASA Mission Control -Houston), this could have happened very easily and so it was very important that they did it correctly and on time or they could tumble off into space even though they were on a free-return trajectory. Luckily, you have the IMFD on board and you will be able to do this proceedure without Houston.

After LOS (you can determine this by externally viewing your ship with the Earth behind you and the moon approaching from one side). Once the Earth goes behind the Moon you would have lost the signal to Houston as radio signals travel at the speed of light in a straight line. Because the Moon is in between you and the Earth, you would have lost signal and all radio communications with Mission Control.
STEP 1. After LOS, set up your LMFD to IMFD if its not already set correctly to this MFD.
STEP 2. Select Menu, and then Course.
STEP 3. Select Orbit Insert.
STEP 4. Set the Reference to Moon.
STEP 5. Press AB and wait.
IMFD will now circularize your orbit at the correct time of your PeA of the Moon and will burn the correct ammount of time to put you into a perfect orbit around the moon.

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Part 7 - Tranquillity Base Alighnment
\
This process is done by pressing the "K" to access AMSO's Lunar AP.
To be added later


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Part 8 - Lunar Excursion Module Detatch and De-Orbit Burn
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Part 9 - LEM Powered Decent Phase
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Part 10 -Landing Phase
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Part 11 -Houston, The Eagle Has Landed
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Part 12 -Powered Ascent Phase
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Part 13 -Rendezvous with Service Control Module
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Part 14 -Transfer of Crew, Cargo and Detatch the LM Ascent Stage
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Part 15 -Preperations for Loss of Signal and TEI

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Part 16 -TEI from Moon Using IMFD in the DG S

Preface: To make this tutorial, I made a trip to the moon in the default DG S to verify some terms and while following the Apollo 11 Timeline.
I was able to create this small tutorial for people to use IMFD to get home from the moon. I noticed that there was a serious lack of this data on this procedure in the Orbiter community and so I felt the need to fill this vacuum -hence this tutorial was created in very little time.

Preflight Steps

You can re-create the situation I have made here by opening a DG S scenario that comes with Orbiter 2006 P1:
Delta-glider/"DG-S ready for takeoff"
The Scramjet delta-glider (DG-S) is ready for takeoff from runway 33 of the Shuttle Landing Facility (SLF) at Kennedy Space Center.
Take off using main engines and climb to 10km. Then try the air-breathing scramjet engines and test the performance for different speeds and altitudes.
...and then by changing the date in Scenario Editor to July 16 1969 at 13:26:00 UT (T-5min to Launch), then you can save the edited scenario as the start of your flight to the moon. You must then re-open the saved scenario in order to make the Sim time set back to 0. You need this for IMFD to function correctly.

You will launch from Canaveral horizontally and then ascend into an orbit of 178km X 178km. If your using AMSO as this tutorial is supposed to be designed for and I’m using the DG S for this flight, your numbers may be very different.
I used the IMFD tutorial to get to the moon using the Free-return document in the Doc/AMSO folder called: FreeReturn.doc

-AND-
The Offset Procedure document tutorial located in the
C:\...Doc\AMSO\IMFD5_OffsetProcedure.zip and then you can unzip the files inside and read OffsetTuto.html.

You also need to:
* Have the latest version of AMSO, Orbiter, and IMFD and that you know how to do the Free-Return TLI (Trans-Lunar Injection) and Offset procedure and have done so to get to the moon.
* Have made at least 1 course correction burn during transit to the Moon to set your final PeA to 110km
* You have successfully entered an orbit around the moon at an altitude of no greater than 110km.
* Your simulated dock with your orbiter vessel occurs approximately 28 hours after undock. (This comes out to about 30 orbits I think total for the orbiter vehicle assuming that you’re at an altitude of 110km.)
* Your altitude is about 110km when you dock.
* You have jettisoned your simulated Lander about 2 hours after docking.
* Your transfer got you to the moon around GET 75:54:29.
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A. --To make your burn based on my 28-30 hour EVA on the Lunar Surface, see the next section "Section A -Rendezvous Flight Timings -EVA Procedure
1. To make you’re Trans Earth Injection burn using Base Approach (for non-specific landing footprint/recovery zone)
See Section A1. Trans Earth Injection Burn Using Base Approach
2. To make your Trans Earth Injection burn using Planet Approach (for almost exact landing coordinates) see Section A2. Trans Earth Injection Burn Using Planet Approach

B. --To make your burn via an earthrise count, sunrise count, or counting total SCM orbits, see section "Section B -Rendezvous Special Flight Timings -Earthrise/Sunrise/Orbits Procedure" (to be posted soon)

Section A -Rendezvous Flight Timings -EVA Procedure
Notes: For a return flight, the Apollo 11 astronauts found themselves wanting to hit a specific target on the earth. This technique is somewhat entailed and we wont be showing you how to do a precision hit on a greater body, But I will tell you that the orbit you leave on is important.

In orbiter the earth and the moon are exactly where they would be at the time of the Apollo 11's Trans Earth Injection (TEI) ignition burn time of GET 135:23:42. If you leave at the right time and make your MCC at the right time, you should come very close to the location you wish to land as long as your doing a lifting entry with a hypersonic trim angle of attack of −27°.

If your GET time doesn’t match mine, all you have to do is prepare for your TEI burn on the IMFDs at about 20 min before you see the earthrise For my flight in the DG S, the second to the last earthrise occurred at GET133:28:29 so I wait until the next sunrise to begin my TEI preparations which occurred at 134:56:00 or so. This is about 11 min before your TEI burn and that should be plenty of time.

A1. Trans Earth Injection Burn Using Base Approach
1. Fast forward to GET 135:20:42 -OR- count your orbits and make sure your at orbit #60 to start this tutorial.
When this has been done your ready to rock and roll.

2. Set both Left MFD (LMFD) and Right MFD (RMFD) to Interplanetary MFD (IMFD).

3. Open the menu of both IMFDs and set the RMFD to share with the left.

4. Set the LMFD to Base Approach and the right MFD to Orbit Eject.

5. Set the LMFD source to Moon (VERY IMPORTANT STEP), and the RMFD to Base Approach instead of its default Higher Orbit.

6. Set the Target on the LFMD coordinates to Lon -172.40 (which sets it to 172.40* W), the Lat to 10.60* and the ReA to 6.37*. The rest (Alt 120.0K and Ant 21.00*) are left as the default.

7. Start to increase the Hint in the LMFD at X1 until a burn vector appears on both MFDs.
Now here is the trick. Depending on your window, or when you decide to set this, and various other factors like mass, and thrust ratio, the burn vector may show a very straight line on the RMFD. Look at the oV amount. It may be around 5.818K or above.
If it is then your setting up a more expensive faster flight.

8. If this is so, keep Hinting up or increasing the Hint in the LMFD past this vectoring. Note that your burn solution or vector will disappear in the RMFD after a bit of increasing again -THIS IS NORMAL Don’t panic!!
Anything above 3.000K of oV is too much for the Apollo 11 mission.

9. After you are done passing the larger oV number up, and you have seen your old vector disappear, you will see a second burn vector appear in the LMFD.
When it shows up again you might find a somewhat less expensive flight but it may not be enough so you can even go past that one to see if there is a less expensive flight window here.

(By the second or third window you find you should find a window that shows the oV to be about 1.772K to about 2.200K and not below 1.000K. Again, this depends on vessel, mass, fuel consumption up to now, thrust ratio for the vessel).

10. Zoom in on the earth in the LMFD. You should see that the Earth is at the center of your screen and the TEI result shows your path going through the far right side of the Earth and slightly through the Earth no matter what projection you choose.
This is fine as you may change your dV later to fix your approach to the Earth for passive re-entry later.
(Also, you may see an squiggly line representing the path in the LMFD. This is also ok.)

(...Don’t worry don’t panic; make yourself a homemade carbonation re-breather out of your flight manual and some duct tape if you begin to panic .)

Note: This is completely normal sometimes as your IMFD tries to get the right vectoring for its burn to get you home. You will either see the squiggly line or the good line either way your going home at the oV you chose which is all we want for now.

Your direction is chosen when you open the LMFD and the reference is set to Earth so LMFD knows which heading to take kind of. It needs Orbit insert to do the rest.

11. Now your ready to burn. Click on the AB to start the Auto Burn for the LMFD and you’re off like a prom dress!!!

You’re done and en route to Earth!!! Have a nice flight back to earth you wont know where you will land but your MCC should use Delta Velocity and the IMFD Map program to set an altitude of 36km to 40km in the IMFD Map. The MCC should be done about GET 150:00:00 or so.

A2. Trans Earth Injection Burn Using Planet Approach
Special thanks to pete.dakota for this section.
(Note: Do this procedure on your last orbit, so you don't use any time acceleration, except up to the burn time. This will insure greater accuracy.)

1. LMFD set to Planet Approach mode. Reference EARTH Target MOON.

2. RMFD set to Orbit-Eject mode. Set to COURSE and OFF AXIS. Reference MOON.

3. LMFD: Set EqI as low as possible. PeA to 36 to 40km. Under PET MANUAL (NOT TEJ), set GET to the mission specific splashdown time. GET 195:18:35 for Apollo 11.

4. Make GET under TEj in the LMFD the same as the GET in the RMFD.

If you have RMFD shared with LMFD and set to course and off-axis then you'll see it updating correctly. You get your burn-vector and auto-burn from Orbit-Eject NOT Planet Approach. Use the RMFD to auto-burn.

If you look at the IMFD Map after your burn you may be thinking that the planned orbit looks like it is way to big and fast. But this was how it was done in the Apollo missions so go for it!!

If TEj in the RFMD is showing 0.000 then change off-axis to real-time and then back to off-axis again to reset the timer. Then hit auto-burn and wait. You should be looking at about a 195 second burn in Apollo 11.

This means that the coast back to Earth (with the odd correction burn) will have you hitting the atmosphere at the same time as the actual mission did, give or take a few minutes, ensuring that you are going to splashdown in the Pacific.


Part 17 -Trans Earth Flight Coast

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Part 18 -Trans Earth Mid Course Corrections

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Part 19 -Jettison Service Module and Prepair for Re-Entry

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Part 20 -Re-Entry and Earth Landing
The admissible dynamic pressure for the thermal shield configuration is 250 kPa (about -12,5 G) and without is 35 kPa.
For the CM splashdown, the admissible impact survival speed: horizontal speed in both axes +-8 m/s and vertical speed -12 m/s.
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Landing
July 24, 1969
16:50:35 UTC
13°19′N 169°9′W

Mission duration
8 d 03 h 18 m 35 s

Thes are a few facts that may not be needed to fly the tutorial but are some fun facts about Apollo 11 that we may look at as I have just finished my 3rd test of 3 different starts from the AS-506 Apollo 11 lift off scenario in the AMSO scenario folder.

All three missions started from scratch and were done according to my fligt plan which places you in the same location on the earth at a similar time to the actual spashdown and gets near the historical location but not quite. I land at Pos:149.11* W, 8.56* N to around 155.16*W, 8.62* N
The third landing was around 151.56* W, 9.12* N as you can see in this picture below made in Google Maps

Here is a hosted image on Image Shack





(Click me Im a link image)


[IMG=http://img74.imageshack.us/img74/2051/googlemap0010vj2om9.th.jpg]

My flight landings compared to the historical location in Google Maps ©2008 Google


13.316667,-169.15 -Apollo 11 Historical vs. AMSO -0010

13.316667,-169.15 -Apollo 11 Historical vs. AMSO -0020

13.316667,-169.15 -Apollo 11 Historical vs. AMSO -0030


As you can see Im way off from the historical landing site but all three of my landings occur in a similar location which allows me to somewhat predict whre the final resting locaiton of the CM will be if my tutorial is followed.

This is all I wanted and now I shall publish all parts of the mission I have done to land at this location at a GET of 193:15:00 or around that time. If all steps in my tutorial are followed then one can reasonably predict a landing in this part of the earth.

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Apendix 1 Mission Parameters
Mission name Apollo 11
Here are the stats on our mission:
(thanks to Wikipedia)
Service Module SM-107
Command Module CM-107
callsign Columbia
mass 30,320 kg
Lunar Module LM-5
callsign Eagle
mass 16,448 kg
Crew size 3
Booster Saturn V SA-506
Launch date July 16, 1969 13:32:00 UTC
Lunar landing
July 20, 1969 20:17:40 UTC
Sea of Tranquility 0° 40' 26.69" N 23° 28' 22.69" E
(based on the IAU Mean Earth Polar Axis)
Lunar EVA duration 2 h 31 m 40 s
Lunar surface time 21 h 36 m 20 s
Lunar sample mass 21.55 kg (47.5 lb)
Number of lunar orbits 30
Time in lunar orbit 59 h 30 m 25.79 s
Landing July 24, 1969 16:50:35 UTC
Location: 13°19′N 169°9′W

Apendix 2 Documents Used:

Simple Freereturn tutorial 30.8.2007 by Jarmo Nikkanen,
Apollo by the Numbers: A Statistical Reference (SP-4029) by NASA
Apollo 11 Timeline by NASA
Official NASA Flight Plan by NASA
Wikipedia's Apollo 11 page by Wikipedia
AMSO-User-manual by AMSO

---------------------------------------------- <> <> <> <> ---------------------------------------------
Special thanks to Dr. Martin Schweiger for Orbiter 2006 P1, Alain Capt and ACSoft for AMSO, and Jarmo Nikkanen for IMFD, DanSteph for Orbiter Sound 3.5 pete.dakota for the Planet Approach procedure and Sonicboom.com for the video.
--Please feel free to use, copy, paste or distribute this tutorial free of charge as long as you give me credit for the creation of the document.
Adam RodrigueZ (polaris149Tiberius)

Email:

Last edited by polaris149Tiberius; 08-30-2008 at 03:45 PM. Reason: Added photo and some additional notations to Tutorial -Revision 1.02 07-2-2008 at 10:50 AM CST(GMT-6)
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Old 04-16-2008, 07:39 PM   #2
pete.dakota
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Quote:
Originally Posted by polaris149Tiberius View Post
 AMSO 1.17 Apollo 11 Full Mission Tutorial Using IMFD
by Adam R (polaris149Tiberius)

I will be posting a tutorial that I am completing with the help of Jarmo in a seperate technicial issue thread. It will endevor to be on time as close as possible for all of you Apollo 11 fanatics who want to re-create the mission as close to the actual times as possible.

It will be out very soon as it is almost done. I will answer questions and refer Jarmo to this thread for further refining and fine tuning of the tutorial which will eventually be put into a PDF format and available in this thread later on.

In the mean time please watch this video to get excited about Apollo 11:

http://sonicbomb.com/dmv.php?vid=43X...%20Moon%20shot

Earlier today I completed my first "by the numbers" flight of Apollo 8 using This official NASA flight plan. I had first LOS travelling round the back of the moon half an hour before the actual Apollo 8 flight did. The lunar injection burn was only 3 seconds longer than the actual one. And splashdown back at Earth occurred just 5 minutes too late, all be it about 200km too far west.

I haven't been able to find as accurate a retrospective flight plan for Apollo 11, so I will be looking forward to your tutorial.
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Old 04-16-2008, 08:52 PM   #3
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Thanks for maing this even though I don't normally use IMFD. I will use it anyways and see how things go.
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Old 04-17-2008, 04:21 PM   #4
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Looking forward to the release of this.
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Old 04-22-2008, 07:18 AM   #5
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Very nice, i dont use IMFD that often but i guess it will be very helpful for some.
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Old 04-22-2008, 11:08 AM   #6
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polaris, your I don't think your method for the TEI burn is the best one if one would like to be historically accurate in GET terms. The burn doesn't just have to be done at the right time. It also has to be long enough to give the CSM enough delta-v so that when the CSM enters entry interface it is above the recovery zone in the Pacific. If you do a minimum energy transfer back to Earth, there is no telling where you may end up.

To get this right you have to use Planet Approach and Orbit eject set to course. Google Apollo by the numbers to get the specific splashdown times for each mission then try the following. Do this on your last orbit, so you don't use any time acelleration, except up to the burn time. This will insure greater accuracy.

1. LMFD set to Planet Approach mode. Reference EARTH Target MOON.
2. RMFD set to Orbit-Eject mode. Set to COURSE and OFF AXIS. Reference EARTH.
3. LMFD: Set EqI as low as possible. PeA to 40km. UNDER PET MANUAL, NOT TEJ, set GET to the mission specific splashdown time. 195:18:35 for Apollo 11.
4. Make GET under TEj in the LMFD the same as the GET in the RMFD.

If you have RMFD shared with LMFD and set to course and off-axis then you'll see it updating correctly. You get your burn-vector and auto-burn from Orbit-Eject NOT Planet Approach. Use the RMFD to auto-burn.

You're probably thinking that the planned orbit this will put you on is way to big and fast. But this was how it was done in the Apollo missions.

If TEj in the RFMD is showing 0.000 then change off-axis to realtime and then back to off-axis again to reset the timer. Then hit auto-burn and wait. You should be looking at about a 195 second burn in Apollo 11.

This means that the coast back to Earth (with the odd correction burn) will have you hitting the atmosphere at the same time as the actual mission did, give or take a few minutes, ensuring that you are going to splashdown in the Pacific.

I hope this was clear enough. Ask me if you think I've missed a step.
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Old 04-22-2008, 06:10 PM   #7
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Default Awesome!!

Awesome!!

Thank you so much. I did'nt know that. I will amend my tutorial to include your information if that is ok. Is there any other information that I need to know or is my tutorial wrong in any other way? Or can you help me with other areas as I begin to post the other parts of the tutorial.
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Old 04-22-2008, 06:49 PM   #8
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Quote:
Originally Posted by polaris149Tiberius View Post
 Awesome!!

Thank you so much. I did'nt know that. I will amend my tutorial to include your information if that is ok. Is there any other information that I need to know or is my tutorial wrong in any other way? Or can you help me with other areas as I begin to post the other parts of the tutorial.
Yeah feel free to use it. I can't really comment on the portion of the tutorial you posted above as most of it will change when you amend it. But when you've made the changes post what you've got in this thread and I'll let you know what I think.
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Old 04-22-2008, 07:46 PM   #9
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Default I think this needs to be amended

Quote:
Originally Posted by pete.dakota View Post
 2. RMFD set to Orbit-Eject mode. Set to COURSE and OFF AXIS. Reference EARTH.
I think this needs to be amended.

This did not work when I tested your step #2 above. It did however work if I set the RMFD to reference Moon.

Shouldnt it be reference moon?
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Old 04-22-2008, 08:49 PM   #10
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Quote:
Originally Posted by polaris149Tiberius View Post
 I think this needs to be amended.

This did not work when I tested your step #2 above. It did however work if I set the RMFD to reference Moon.

Shouldnt it be reference moon?
You're right. Yes it should be set to moon. Not sure why I typed that.
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Old 04-22-2008, 11:40 PM   #11
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Default I will ammend the tutorial

I will ammend the tutorial

Ok I will ammend the tutorial but in the AMSO AS-506 scenarios. I do have a question for pete.dakota.

I was checking out the Apollo 11 Wiki page and comparing it to I found that the Apollo 11 Timeline to compare to your numbers given for the TEI time of GET 195:18:35 and I didnt find this time anywhere on the timeline.

Where did you get this amount? GET 195:18:35

Also, how would you do this proceedure if you had to use Base Approach like the scenario in the AMSO folder for AS-506 (Apollo 11) called:

"Apollo 11 step 23"
In orbit around the Moon.
Short before TEI (Trans-Earth Injection).
IMFD instrument is all set for the TEI burn at schreduled historical time. You just have to activate auto-burn IMFD function.
Real flight plan: 22th July at 4:57 UT.


pete.dakota can you help?

Thanks in advance.

Last edited by polaris149Tiberius; 04-23-2008 at 07:07 PM.
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Old 04-23-2008, 07:31 PM   #12
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195:18:35 is the GET for splashdown of Apollo 11, not the TEI burn. What's important to remember about A11-17 (exc. 13) is that, unless you have followed the flight plan PERFECTLY (exactly to the second for EVERY activity up to TEI) YOUR TEI burn will not coincide with the actual Apollo 11 TEI burn GET. I wouldn't advise you to enter the TEj to match the actual Apollo 11, but to let it calculate itself after giving it, PeA at Earth and the GET for splashdown.

It's important to remember, that when orbiting the Moon during a landing mission, that it's going to be nearly impossible to make sure that your CSM is in the EXACT same place at the EXACT same time as the actual mission when it comes to LM/CSM docking. In reality the CSM would have performed a few orbit adjustments, and so, changing it's orbit time, and so, the time and position of the TEI burn.

The best I've been able to do with Apollo 11, in terms of reality, is arrive at the Moon (LOI burn) 40 seconds after the actual GET. I performed the LM undocking, de-orbit, landing on the same time line, and so, saw the Eagle touchdown in Tranquillity only 30 seconds before the factual historical time. Even with this much accuracy, after launching from the moon, rendezvousing with the CSM, and calculating my TEI burn, the time line had gone way off the factual. My TEI burn actually occured a good hour or so after the historical time.

So if you're doing a full mission, don't plan your TEI burn to start at the same time that A11 actually did, as the chances are that you will be in the completely wrong place.

I really don't know about that scenario, sorry. I've never used Base Approach mode.
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Old 04-23-2008, 11:46 PM   #13
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Default Woops!

Woops!

Did I say TEI? sorry I meant to say splashdown time of GET 195:18:35 Ok I see it on the timeline now. False alarm. Ok so Im going to test the closest TEI in Orbiter to the actual TEI time of:

Transearth injection ignition (SPS).
GET 135:23:42.28

I will post my numbers and I want to say that if we (me) really want to use the scientific method for this simulator, the answer is going to be sharing scenarios and burn data as well as telemetry for each of us to share here on these forums.
I am happy to post any of my launch data files for us to study in detal and find all the "nominal" flight proceedures and vectoring times and so on.
I surley want to be a part of any study this community wishes to submit and carry out for all to read and test and post thier findings.

All data can be made into and posted here in the forum of video, data sheets, and any other variations to what should be found to be the "nominal" proceedure or program for the flight.
(i.e. trims or roll proceedurs that may not already be documented as a normal ORBITER manuver).

To carry out this enormous process I would like to recommend that we begin a "virtual NASA" as has already been done and find some ppl who can commit to piloting and testing of an manned and unmanned missions that emulate the first stages of Nasa.

(i.e. spaceflight models for various targets under a documentory committe who overwatches the space program and alocates certain tests under a budget.)

The jett propultions lab we would have sould extend the testing into a published series of early test flights and all the data we sould collect on the them, show what is good and what is bad, then show if we can get similar results across the board.

This is like a scientific method in a maner of speaking.
That way others can attempt to beat our numbers and we all win from the spirit of competition alone. Man's continued aspirations to explore are invariably the most exciting to acomplish. Let not our fear of typing be the end all to our quests.
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Old 04-24-2008, 07:50 PM   #14
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OK I just ran a full Apollo 11 as accurately as I could. TLI was on time, a 4 second MCC burn at 26 hours, an 8 second MCC burn at 68 hours, LOS and LOI were 1 minute and 6 seconds behind the historical times. I had IMFD put me into a 96km x 270km lunar orbit for two revs (which is what A11 did), then a circularisation burn to circularize at 96km was around 10 minutes early. I was able to undock the LM at the correct historical time, but then after that I had to start ignoring the actual time line, as the LMs decent autopilot goes by altitude and distance, not GET.

The LM landed around 20 minutes before the actual time.

This is now why you can't use the historical GETs for any more of the mission. The LM and the CSM were undocked for something like 28 hours, all of which you will spend focused on the LM. Even if it's orbit is out by 100 meters compared to the actual mission, the position of the CSM above the Moon's surface will be different to what it actual was when it comes to docking, and so, TEI burn. After the lunar landing you HAVE to fly the rest of the mission 'on the fly' (pardon the pun).

You have to make this clear in your tutorial, and explain why, too. If someone wants to fly an accurate Apollo mission with AMSO they would sit there banging their head for ages trying to work out why they can't make a good TEI burn because they are trying to have the burn start at the historically accurate time. The only thing that can be assured accurately from now on is the GET for entry interface/splashdown, which will be programmed into IMFD like we've talked about above.
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Old 04-24-2008, 09:14 PM   #15
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Default Roger that we read you 5 squared.

Roger that we read you 5 squared.

Thank you for testing that and reporting it for us to see.

Ok so my understanding is that in my tutorial:

1. I should say that they should not try and use my tutorial to do a historical mission because AMSO uses an AP that decends the LEM according to altitude and distance to target NOT according to the GET and after landing the CSM will be in an incorrect orbit to rendezvous with the LM ascent at the correct time and place?

2. I should then further instruct the pilots that after rendezvous with the LM ascent, they should be around 28 orbits for the CSM from time of undock? Not 30 orbits?

3. Should I then mention that they will want to be in a 96km X 96km orbit to get close to the TEI time?

4. How are you simulating your Loss of Signal(LOS) ? Are you simply looking to see when your ship looses sight of the earth or do you have a sound addon that does this for you ?

5 Should I mention that unless they use Planet Approach the way you described, there a very very very small chance they will land at the right place on the earth at the right time?

The reason I ask #5 is because like myself, some people are big Apollo fans and would love to be able to do a flight that takes you from point A to point B, collect some rocks and then rendezvous with point C and then because the US Hornet is NOT capable of traversing the Pacific thousands and thousands of miles to find the capsule no matter where it lands, it has (at least for me now) become ever increasingly more important to land in the correct place. This is true aerospace perfection. After learning this I can transfer the information to trips to Mars, or other bodies. I am very interested in making my tutorial extend to show how to make sure you LAND in the CORRECT spot within a few hundred nautical miles at least.

6. Did your flight give you a very accurate landing footprint and recovery zone?



Also, if anyone out there has any information on how to do this process using Base Approach (were talking of using the Planet Approach right now) but if anyone knows how to do the TEI and make the CM land in the right place when getting to earth we are very interested. Please Please post your knowledge of this proceedure.

Thanks to pete, and anyone esle who wants to help in advance.
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