This part is from Wernher's Old Bits
cost:
1400
mass:
0.23
category:
Engine
TechRequired:
start
engine_data:
Cruise
{"isp"=>nil, "propellant_ratios"=>{"LiquidFuel"=>1.0, "IntakeAir"=>127.0}, "max_thrust"=>20.0}
resources:
IntakeAir
0.5
