RS-68
Rocket engine
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The Aerojet Rocketdyne RS-68 was a liquid-fuel rocket engine that used liquid hydrogen and liquid oxygen as propellants in a gas-generator power cycle. It was the largest hydrogen-fueled rocket engine ever flown. Wikipedia
Chamber pressure: 1,488 psi (10.26 MPa)
Diameter: 8 ft 0 in (2.43 m)
Dry weight: RS-68: 14,560 lb (6,600 kg); RS-68A: 14,870 lb (6,740 kg)
First flight: 2002
Length: 17.1 ft (5.20 m)
Manufacturer: Rocketdyne; Pratt & Whitney Rocketdyne; Aerojet Rocketdyne
Nozzle ratio: 21.5
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