Quote:
Originally Posted by Agemegos
TL7 chemical rockets in Spaceships have a thrust-to-weight ratio of 60, Rocketdyne F-1 engines had a thrust-to-weight ratio of 84.
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On the other hand the TL7 chemical rockets in
Spaceships produce 0.15 mps/tank, implying an effective exhaust velocity of 3 mps. Rocketdyne F-1 engines had an effective exhaust velocity of 1.83 mps in vacuum (1.64 at sea level), which would give less than 0.1 mps per tank.
That comes down to the F-1 burning kerosene and LOX, whereas the TL7 chemical rocket is probably based on a LOX-LH₂ upper stage or shuttle main engine with less thrust but better specific impulse, more suitable to operations in space.