Underwater turbojet engine
Underwater two phase ramjet engine
Underwater two phase ramjet engine
Unducted, counterrotating gearless front fan engine
Uniform gas distribution in ion accelerators with closed...
Unitary plug mixer and support therefor
Unitized hybrid rocket system
Universal-joint vectoring system for a turbojet-engine...
Use of controlled burn rate, reduced smoke, biplateau solid prop
Use of high energy propellant in gas generators
Using metal complex compositions as gas generants
Utility conduit enclosure for turbine engine