RocketSTEM Issue #14 - March 2017 | Page 61

Cycle
Oxider
Fuel
Chamber Pressure
Throttle Capability Full-flow staged combustion
Subcooled liquid oxygen
Subcooled liquid methane
300 bar
20% to 100% thrust
Sea-Level Nozzle

Expansion Ratio: 40
Thrust (SL): 3,050 kN
lsp (SL): 334 s
Vacuum Nozzle

Expansion Ratio: 200
Thrust: 3,500 kN
lsp: 382 s
Engine configuration

Outer ring: 21
Inner ring: 14
Center cluster: 7

Outer engines fixed in place
Only center cluster gimbals