So replacing the engine with a 500-lb-thrust turbofan would be an upgrade!
So replacing the engine with a 500-lb-thrust turbofan would be an upgrade!
It doesn't scale in a linear manner; the larger the engine, the more efficient the engine. You could get near a ton of thrust on that 120 GPH.Something like this turbojet will produce 25kg of the thrust at 12 gph. Multiply by 10, assuming it scales linearly, you will be using 120 gph for 250 kg of thrust.
http://www.chiefaircraft.com/jct-ma...Jv4D6wYu-QDCk0hZW-I9MS8JSKZR4EucaAvmLEALw_wcB
It doesn't scale in a linear manner; the larger the engine, the more efficient the engine. You could get near a ton of thrust on that 120 GPH.