mentionned, SSU/SSV is a totally different beast that requires to think more like we do in a flight simulator (VC, avionics, clicky stuff) than we usually do in Orbiter (HUD, keyboard shortcut, etc).
Hi, I have a general idea of how the shuttle re-enters but I'm not sure how to aim for the runway at the KSC. I am aware that I need to use bank angles to reduce lift, but I'm not sure when to do them and for how long.
For the aiming part, I simply use the map (either the map in the MFD or the external windows with Ctrl+M to bring it as a popup) to see my predicted trajectory to keep it relatively towards my destination (KSC, EDW, etc).
In my video I've shown before (and the Shuttle for SSU) there is a "Delta Azimuth" displayed in the MFD, that indicates "heading to go". As it is automated in SSU I don't have to worry about that, however in a manual reentry with another addon for example I watch it in GlideslopeMFD and don't go further than 5° of DelAz. It usually takes 1000 nautical miles (as we use imperial units in the space shuttle and aviation, that's roughly ~1800km) to have 5° of DelAz to need to invert your bank angle for a reversal roll. And you would need to do that 4 times at least (that's how many times the Space Shuttle did it), but you can do as many as you want if needed, we just have to keep in mind that inverting your bank angle will go by 0° of bank wich means the wings are leveled and will generate lift, so we need to be quick during a reversal roll.
I am using SSU for orbiter 2016 and I cant figure out how to program the shuttle to deorbit for the KSC. all the NASA checklists go over my head. I have landed the delta glider before but I had to use the main engine a few times as I was just short of the runway.
Thanks for your help
In SSU (or SSV if you're using SSV too), before trying much and more complex stuff like a deorbit/reentry, and if you're new with SSU/SSV especially, I'd recommend to be at ease with the Shuttle's avioncs one by one with different scenarios instead of going to do all of them at once. It will be difficult and an error could cost the entire flight. Here's a diagram of the avionic's stuctrure:
Then I'd suggest to familiarize yourself with the Shuttle by "speaking Shuttle-language" with the scrachpad by playing with OPS201 (UNIV PTG)
and OPS202 (ORBIT MNVR EXEC)
and try to understand how all these works (and the Shuttle's terminology, you can find a lot in the Wiki the FG Space Shuttle
Knowing this will be helpful as the logic for orbital burns is the same for a deorbit burn.
To help you with that, there are tests scenarios provided with SSU/SSV that have different stages of a mission:
(don't mind the scenario with T-38, I added it manually for my needs)
- Entry Interface (EI), the reentry,
- Terminal Area, Energy Management (TAEM), the gliding,
- Final/the landing
With these you already have a Shuttle configured for the scenario so you can see what it would look like (especially for the reentry, you'll see the different stages of the reentry when everything goes to plan).
Here's OPS201 used to point the Shuttle's nose heads down in retrograde || Here's OPS202 used for orbital maneuvers (firing the OMS to change your orbit etc)
Understanding these will help you greatly for OPS302/OPS303 as OPS202 displays the same informations with a bit more for reentry.
OPS302 with a deorbit burn starting from 600km of altitude and || OPS304 displaing the first stage of the reentry (ENTRY TRAJ 1) during the EI:
For OPS201, I started playing with ITEM14+5 so we can enter a different attitude as desired (with ITEM15, ITEM16, ITEM17) and enter some of the values in the image below.
There's really a lot to talk and I can't make a long-ass post lol
So I'll stop here (for now)
Hey what if we make a "poor man's tutorial" for SSU in a PDF to have the very basics of a STS flight by detailling the different stages but keeping it simple ?
I was thinking of doing it a long time ago already and as I already used to do that for flight simulation (explaining the Airbus, Boeing, F-16 in BMS, etc).
Yeah I think I'll do that !
Anyways, have with in SSU/SSV, you'll have years of fun ahead !