Hey! That is a pretty nice sci-fi piece. Good Work! The only thing I might change would the that cylinder. Since it is a generator it would be cool to see some kind of turbine moving inside and some kind of light coming from it. Like if it was producing energy.
I should have added to the OP that it's a supercavitating-hypersonic capable submarine: It literally flies through the water. It has turbine-fusion rocket hybrid engines as well as 2 smaller waterjet engines, and a bunch of maneuvering thrusters. The Spaceship/Aircraft look is intentional. Thanks for the advice anyway.
@Joci I don't think I ever found a plan either; I used T-55 & R-11F2S-300 engine dimensions as a start and based the rest off of photographs (rough guess / estimate) These were the dimensions for the turbine engines I had in my notes:
Yeah, Fillon would have been awesome. I mean honestly, don't you guys always think of it when you see a Drake mugshot ? Even the attitude is similar (love the part when he kicks a bad guy straight into a spaceship exhaust turbine in Firefly!)