Viking 4B

Designer: SEP. Propellants: N2O4/UDMH. Thrust(vac): 805.000 kN (180,971 lbf). Thrust(sl): 571.100 kN (128,388 lbf). Isp: 296 sec. Isp (sea level): 210 sec. Burn time: 125 sec. Mass Engine: 850 kg (1,870 lb). Diameter: 2.60 m (8.50 ft). Length: 3.51 m (11.51 ft). Chambers: 1. Chamber Pressure: 58.50 bar. Area Ratio: 30.80. Oxidizer to Fuel Ratio: 1.70. Thrust to Weight Ratio: 99.38. Country: France. First Flight: 1984. Last Flight: 2003. Flown: 133.

Viking 4B used on Rocket Stages

Used on stage: Ariane 2-2. on launch vehicle: Ariane 2/3.

Used on stage: Ariane 2-2. on launch vehicle: Ariane 4.

Used on stage: Ariane 2-2. on launch vehicle: Ariane 42L.

Used on stage: Ariane 2-2. on launch vehicle: Ariane 42P.

Used on stage: Ariane 2-2. on launch vehicle: Ariane 44L.

Used on stage: Ariane 2-2. on launch vehicle: Ariane 44LP.

Used on stage: Ariane 2-2. on launch vehicle: Ariane 44P.

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