Interceptor
Well-known member
Hi. does anybody know how to use this option in aerobrake. I have no clue, but would like to know, as this seems a very useful feature. Thanks
Last edited:
Question AeroBrake and Hypotetic DeltaV option
- Thread starter Interceptor
- Start date
Hey Interceptor:
I use that feature all the time, it's really useful for planning your de-orbit and reentry. AeroBrake projects your path based on your current AOA so the first thing you need to do is maneuver to your planned reentry attitude. Then enter a value for HDV, from a circular orbit something between 250 and 500 works good for starters. The MFD is now showing you what your path would look like if you did a de-orbit burn of the magnitude you entered. You can now adjust your pitch attitude and/or the HDV to fine tune the projected path. Tweak both of them (or just either one of them, its up to you) until you get the reentry path you want. When you are happy with the projection take note of the AOA and the HDV. Using the AeroBrake map note how many deg of longitude the projected path is (each green line is 30 deg). Now set the HDV to 0 so the MFD will show your current projected path. Now all you have to do is wait until you are at the previously noted distance from your landing point and do a de-orbit burn of the magnitude you had for the HDV, then maneuver to the attitude you used for the hypothetical and reenter as usual.
Hope that helps!
I use that feature all the time, it's really useful for planning your de-orbit and reentry. AeroBrake projects your path based on your current AOA so the first thing you need to do is maneuver to your planned reentry attitude. Then enter a value for HDV, from a circular orbit something between 250 and 500 works good for starters. The MFD is now showing you what your path would look like if you did a de-orbit burn of the magnitude you entered. You can now adjust your pitch attitude and/or the HDV to fine tune the projected path. Tweak both of them (or just either one of them, its up to you) until you get the reentry path you want. When you are happy with the projection take note of the AOA and the HDV. Using the AeroBrake map note how many deg of longitude the projected path is (each green line is 30 deg). Now set the HDV to 0 so the MFD will show your current projected path. Now all you have to do is wait until you are at the previously noted distance from your landing point and do a de-orbit burn of the magnitude you had for the HDV, then maneuver to the attitude you used for the hypothetical and reenter as usual.
Hope that helps!
Interceptor
Well-known member
Wow! what an awsome feature. Thank you so much for the info SLICPILOT
:speakcool:
:speakcool:Hmm, I'm just getting back into Orbiter again and use aerobrake for all my re-entries. I'm proficient in the DGIV with it, but I too always wondered what several of the options were including the one that Interceptor brings up. I have read the manual of course but much like your response above slic, it made my brain hurt.
I doubt you could explain it more clearly as your response seems pretty straight forward, so it's gotta be me (it usually is). I think I'll bookmark this, wake up some more and have re-read. Hopefully then the bulb will go on. Nevertheless, thanks for this.
I realize this is an older thread, but I feel no remorse in reviving it as I think you're answer adds much to the fun-ness that is aerobraking.
Cheers.
