Helios Stage 1

Propellants: Lox/LH2. Thrust(vac): 1,667.000 kN (374,756 lbf). Isp: 400 sec. Isp (sea level): 340 sec. Burn time: 117 sec. Chambers: 1. Country: USA. Status: Study 1960.

Engines for booster stage with Lox tanks only to take nuclear second stage to stratosphere.

Helios Stage 1 used on Rocket Stages

Used on stage: Helios A-1. on launch vehicle: Helios A.

Used on stage: Helios B-1. on launch vehicle: Helios B.

Used on stage: Helios C-1. on launch vehicle: Helios C.

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