eatdirt wrote in Thu May 30, 2019 2:23 pm:Is it possible to change somewhere the thrust pourcentage for ascent
I guess I know a way for that one, SPEC 51 settings before ignition, Throttle -> Max. But you get only 3 options, nominal, max or abort.
By the way, I was just curious to see what a manual ascent does, and I spotted that the pink needles do not work on the big ADI ball display, but do work on the small one. Do you see that Gingin?
Hey Chris.
Yep for the Spec 51, but it is available in stage 2 and not during the first part of ascent.
Well, manual ascent does what you want her to do ahah. Basically really similar to the AP, with a slightly less vertical profile to have more downrange at SRB separation. (And decrease the MECO time)
The tough part is between Mach 0.9 and 1.6 where max AOA is + 2°.
If you pull too hard, wings will blown, quite entertaining to do it manually.
I can make a short video if you want (?)
For the needles on the big ADI, I would say it is normal as the Big one is for Orbit use only.
- last known position was about a deg behind HST after insertion, so enough time to do the PC burn and do the rendezvous 2-3 orbits later.
Thank you for the scenario
A deg is perfect, with a slow phasing, plenty of time yes.
I remember doing a 4 Orbit Rendez Vous being 20 ° behind ISS after MECO .
I read somewhere (?) that it starts with GMT.
Interesting, didn't know that one.
I made some test on the new Orbital_target.nas.
I have the feeling that it is more accurate, I need to compare the screens I made from older ones.
I am looking mainly at the catch up rate vs delta height. ( In one orbit, 50000 feet of downrange covered for a 10000 feet of delta height at lowest point and 1 ° of phasing/hour = 10 Nm Delta height = 60 Nm of downrange roughly)
Above 54 Nm, I had the feeling it was much more accurate than thte previous model.
Below 54 Nm, I had some " weird " relative height position.
Next picture, Minimum of relative height at -2000 feet
Maximum around -20000 feet
So all good so far. But I was expected to come back 2000 feet below ISS, as ISS and Shuttle are close enough to be affected by the same amount of non spherical gravity and keep the same relative deltaheight profile without burn.
And What I had ( like if ISS was still not affected by J3/IERS, on a perfectly undisturbed Circular Orbit)
Don't know what came up from your tests ?
PS: I think I found one possible cause for my mysterious jump on X axis.
It happened when I played with time compression of less than one
Time to go for Hubble