Project Francis II
TypeSuper Heavy Lift Launch Vehicle
Stage4
Displacement6,250 t
Length140 m
Diameter
12.5 m
Propellant
Kerosene
Liquid Oxygen
Payload250 t (LEO)
First Stage
EngineKE-5A(SL) x 9
Thrust
90,000 kN
Propellant
RP-1 / LOX
Specific impulse
270s
Burn Time50s
Second Stage
EngineKE-5A(V) x 5
Thrust
50,000 kN
Propellant
RP-1 / LOX
Specific impulse
270s
Burn Time125s
Third Stage
EngineHE-3(V) x 5
Thrust
12,500 kN
Propellant
LH2 / LOX
Specific impulse
460s
Burn Time360s
Forth Stage
EngineNERVA-1(V) x 1
Thrust
540 kN
Propellant
LH2 / Nuke
Specific impulse
800s
Burn Time1250s