More PROPULSION systems!
I BELIEVE THE ADDITION OF THESE PROPULSION SYSTEMS WOULD TAKE THE GAME TO A WHOLE NEW LEVEL AND PERMIT THE CREATION OF CRAFTS BEYOND OUR IMAGINATION! It would also be SUPER awesome to mess with!!!!!
-more customizable and thrust vectoring jet engines
-hybrid rocket+jet engine (like the SABRE)
-marine propulsion options for boats and submarines
-ion drives and thrusters
-variable cycle engines and supercruise capable engines
-direct impulse propulsion (like particle accelerators)
-laser thermal rocket propulsion
-microwave thermal rocket propulsion
-anti-matter drives and engines
-inflatable and deflatable balloons (refer to hybrid airship tech like lockheed martins)
-retractable helicopter rotors/propellers
i totally wanted them so much
i don't have any votes tho but that should definitely be added no matter what