Juno II
Specifications
Columns: Parameter | 1st stage | 2nd stage | 3rd stage | 4th stage
Gross mass | 54,431kg | 462kg | 126kg | 42kg | Empty mass | 5,443kg | 231kg | 63kg | 21kg | Thrust | 667kN | 73kN | 20kN | 7kN | Isp | 248 s (2.43kN·s/kg) | 214 s (2.10kN·s/kg) | 214 s (2.10kN·s/kg) | 214 s (2.10kN·s/kg) | Burn time | 182 s | 6 s | 6 s | 6 s | Length | 18.28 m | 1.0 m | 1.0 m | 1.0 m | Diameter | 2.67 m | 1.0 m | 0.50 m | 0.30 m | Engine: | Rocketdyne S-3D | Eleven Sergents | Three Sergents | One Sergent | Propellant | LOX/RP-1 | Solid Fuel | Solid Fuel | Solid fuel