I have started with a simple goal for now, model the crafts and locations to dynamically generate the Explorer I mission, not necessarily to real life spec. But to a decently realistic and good looking level of detail. To this end, I am working on modelling the Jupiter-C launch vehicle using correct dimensions weights etc. I will use this to create a pretty basic simulation in XNA and build on it adding stuff like the engine sounds I am also working on Here is a preview of some of the stuff I have coming

Audio:
The audio was created in Audacity using a high pressure cigarette lighter as the base sound, then I pretty much massaged it down a bit to get a nice roar. The start just uses reverb and amplitude changes to give the feeling of that initial surge at rocket startup. Pretty simple sounds to create so far. Kinda fun to be playing with audio again .
Engine Start
Engine Run

Images:

Jupiter-C RocketDyne Booster Tail Section

For fellow BARIS lovers, the game has been open-sourced and can be found here