I am currently building a small jet engine, and I am eager to know what the approximate ratio of fuel to oxygen is (to produce maximum thrust). I also would like to know where to engineer the center of gravity in a jet-powered plane? Any light you could shed on these issues would be a great help.
The approximate stochiometric air to fuel ratio is about 15/1 for hydrocarbon fuels... I believe slightly richer ~12/1 yields the most power... but I don't have my propulsion info in front on me right now...
I'm not really a flight mechanics guy, but roughly speaking I don't think it matters whether it's a jet or not wrt stability and control (although I do know some jets are actually unstable on paper and are stabilized by sensors, actuators and high speed digital computers)...
Hope this helps some,