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Old 04-05-2019, 10:15 AM   #346
Thorsten
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The new version of the Space Shuttle Flight Manual (both Standard and Deluxe edition) referring to milestone 11 is out (259 pages for the deluxe edition.)!



Please download and enjoy the version of your choice! Plenty of news on COAS, OMS kit, rendezvous and proximity operations, new dialogs,...
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Old 05-12-2019, 07:24 PM   #347
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A sum up of my last test sessions.

High Energy TAL to Gander.
An Exotic TAL that would have been useful in case of a triple engine failure between 20 and 22000 fps of inertial Speed for a Launch to ISS ( 51.6 of Inc)

Procedure developped in the 2000's .
At those speeds, too much velocity for a normal Gander TAL and not enough speed for a TAL to Shannon once Ocean was crossed.
Really exotic and smart one.

The checklist menu




And the sum up


https://forum.flightgear.org/viewtopic.php?f=19&t=35763
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Old 08-29-2019, 02:02 PM   #348
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In case you were wondering - development is still happening

Currently I'm busy to enable the cue card binders to be usable in the cockpit - right now you can attach some systems procedure binders to the velcro and browse through them - because that might be awkward in a stress situation, each page can pop up in a separate window when clicking on it.



Otherwise I've done some basic stuff (which Orbiter had for ages, but I had to code from scratch) - management routines for grabbing payloads from space (this alters the number of objects to be simulated...) and for things like assemby - so now we can grab a satellite and return it to Earth.

Thanks to Waybe Bragg, we also now have the Hubble Space Telescope as a (challenging) rendezvous target (unless you bring the OMS Kit of course...).

And for training purposes, I've added a scenario overlay which allows to quickly jump to specific tasks - using a scenario overlay, one can for instance set Shuttle and rendezvous to specific positions, or set a Shuttle internal state (failures...) or such like - that's kind f orthogonal to saving/resuming a state as one would do when simulating a mission in real time.
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Old 09-10-2019, 02:49 PM   #349
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Space Journey to Hubble




https://forum.flightgear.org/viewtopic.php?f=87&t=36311
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Old 10-16-2019, 05:01 PM   #350
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Movie about a complete Return to Launch site with OPS6 guidance

https://www.youtube.com/watch?v=bDGI...ature=youtu.be
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Old 10-19-2019, 04:24 PM   #351
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Finally getting the CAM matrix voting problem under control - here's GPC 2 after failing to sync with the redundant set (on orbit here being composed of 1-3) in step 2 - in step 1 it votes against 1 and 3, but then in step 2 the algorithm decides that as a minority being voted out, it can't vote against others any more, so it indicates self-fail.



Okay, this is a pretty exotic part of Shuttle operations... but we now have it anyway.
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Old 10-24-2019, 05:08 AM   #352
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A genuinely different perspective for a change. In reality, the Shuttle has often been escorted by fighter jets in its last flight phase - so I've wondered how it looks from the cockpit of such a jet.

To re-create the experience, I recorded a Shuttle TAEM trajectory to Edwards AFB, fed that to the AI system of FG, got myself into the cockpit of an F16 and tried to intercept the incoming spacecraft.

It turns out to be a really difficult maneuver - for an early intercept the F-16 needs to climb high and hit full AB, but quickly switch into full brake mode because it's simply not meant to descent at 7000 ft/min, so it's a bit hard not to overshoot the Shuttle, basically engine idle and full spoilers do the job

From the Shuttle cockpit, TAEM is a sedate affair - nothing much happens, lots of straight-line flight while one has a chance to look at the NAV filters and does a few last minute weather adjustments. Also, it feels pretty slow going after the entry phase. From the F-16, it feels nothing like that, it's a hectic scramble to intercept followed by a completely mad spiral dive.

In formation just before HAC:



...and during HAC



Good radar lock as the Shuttle dives into final approach:

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Old 11-14-2019, 03:18 PM   #353
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I'm happy to announce that the next milestone of the Shuttle is tagged and will soon be widely available via the standard FG download option.

There's quite some work under the hood, but the big new thing is the option to grapple payloads (or push them away if you're not careful...). Also, there's now the concept of a 'Scenario' which quickly gets one into an interesting mission phase, and there's support to velcro cue cards in-sim into their positions.

Here's some impressions of the pre-milestone tests I've done:

Fuel dump during an RTLS:



ET separation and pitchup before Nz-holding phase:



Alpha transition (in the event, I was high on energy so I got to experience S-turns later):



Night portion of the orbit, after TI burn in transit to ISS:



ISS in view:



Approaching a satellite for capture:



Stationkeeping in capture position:



And... grabbed in the first attempt:



View from the payload specialist station:



Off into the sunset...

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