Space Shuttle - Help

[GinGin]

@amalahama:

There are some good links there :

https://forum.flightgear.org/viewtopic.php?f=87&t=36808

[Thorsten]

I've been lately looking for nice orbital mechanics books, I tried to find some references in Space shuttle deluxe manual but I couldn't find any.

What is it you're looking for? Usually it's taught solving analytical 2 and 3 body problems (because there the equations are tractable) - but that's no good in practice, it just gives you a lot of (nice) math. If you try to teach it using the realistic case, you end up just telling the results that can be obtained numerically - so it's a mere list of phenomena. The idea of a tool like LEO targeting is then that you can simply run your own numerical simulations to try and test things - it's a lightweight sandbox code to give you a hands-on feeling for how it works.

But then again, it depends on what you want to learn (I've myself never consulted a book, it's one of the areas of science that are very complicated analytically and pretty accessible numerically, so I just go and play...)

[amalahama]

Thanks Thorsten, I'm an aeronautical engineer myself and I understand the underlying physics of most of the topics discussed but I want to refresh my memory with the analytic details of the most advance topics (non spherical gravity, rendezvous and relative kinetic equations, Lambert problem, etc.) and if possible implement some routines in an old HP50G calculator that is taking dust in a drawer.

I found this book: Orbital mechanics for engineering student, by Howard Curtis, which deals with all the topics with the proper detail, although it uses a different nomenclature I'm used to.

Best regards

[kentcdiaz]

Flight Gear Shuttle keeps crashing after loading in scenery. I tried to load in in orbit and it worked perfectly fine. It also works if i disable scenery. Help would be appreciated.

[wlbragg]

Your talking about loading in Launch Position?
Are you using Show Gantry?
Can you tell if the crash being caused by the shuttle not settling on the ground or pad correctly and then it falls over or lands on the ground too hard? Or is it a program crash as in the sim exits back to the OS?

[kentcdiaz]

Yes the launch position
I Don't know what that is
The sim is crashing to the OS

[wlbragg]

It may be a resource issue, as in not enough system resources.

What are your system specs, including GPU and memory.

What version of FlightGear are you using?

What location did you try to start up at?

Try at other locations that are not as scenery intense, turn off advanced graphics settings across the board maybe.

[kentcdiaz]

CPU: AMD Ryzen 3600XT
GPU AMD Radeon RX570
RAM: 32GB ddr4
FG 2020.3.19
KTTS

[kentcdiaz]

Ok I got it to work but about a minute after the shuttle takes off I get a warning that says "Wing bending moment approaches safety limits! Watch AoA!" then the entire shuttle blows up.
I don't have any controls bound.

[wlbragg]

Maybe others more familiar with flying it can give you some pointers. But just know, this is a hi-fidelity simulation and requires a trained astronaut to fly it, well, darn near.

If I use the "NASA Space Shuttle Atlantis in Launch Position" startup variant and go through the "Launch" checklist, it usually makes it into orbit all on it's own. It's designed to be one of the "autostart" equivalents for the shuttle.

[kentcdiaz]

Yea i go through all the checklists. I used to fly the Shuttle in Orbiter but i heard this one is better. Should i post this somewhere else?

[wlbragg]

No, this is the place. There is a manual basic (free), advanced (small gratuity). Give others a chance to respond. But as I said it is mostly learning how to fly the shuttle using the provided documentation or even NASA's own flight manuals. Also, as I said, using the appropriate variant startup mode, it should fly itself into orbit. I tried it just now and it still works for me.

[wkitty42]

Ok I got it to work but about a minute after the shuttle takes off I get a warning that says "Wing bending moment approaches safety limits! Watch AoA!" then the entire shuttle blows up.
I don't have any controls bound.

where are you taking off from?
what orbit are you trying to reach?
which mission scenario are you using?

[kentcdiaz]

I figured it out
I just had to set my spawn direction to east