app4soft 5 years ago

TL;DR: David Jorge Aguirre Gracio (u/DavidAGra on Reddit[0]) presented his rocket flight simulator written in Delphy (Delphi community 10.3). This application uses engineering equations to simulate the behavior, efforts and performance, in addition to controlling the power and trajectory, of the first stage of a Falcon 9 (SpaceX) rocket. It has different panels for loading structural information, performance characteristics of engines, throttle control curves and vehicle inclination, etc.

On presented screenshot[1] and screen-cast video[2] demonstrated simulation of CRS-17 Mission[3].

Few comments from r/Engineering thread:

> Q: Will there be an open source repo or is the idea that the binary itself is free to distribute?

> > A: Initially I'm planning to share the executable file, but according to how fast it grows and how many enthusiasts it gets, I could open the source code. Currently the users can simulate their own missions taking advantage of a fully customizable interface.

> Q: For the Falcon 9 simulator will you add Crew Dragon, Cargo Dragon, or the possibility of adding Falcon Heavy as well?

> > A: Sure in the future. For the moment you can change the payload/fairing configuration (measurements and drag coefficient) to simulate Dragon capsule. This would work pretty good.

> Q: How can we get a copy of it to use?

> > A: I think one week more, I have to finish only some details. I will post again...

[0] https://www.reddit.com/user/DavidAGra

[1] https://i.redd.it/umr07m1o9el31.png

[2] https://www.youtube.com/watch?v=tAZv5xvEaXQ

[3] https://en.wikipedia.org/wiki/SpaceX_CRS-17