GEM 60

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GEM 60

Part of GEM

Hercules solid rocket engine. In production. Used as strap-on boosters for Delta 3 , Delta IV Medium. First flight 2002. Solid propellant rocket stage. 90.5 bar chamber pressure, 11.0 nozzle expansion ratio. Figures for TVC version. Fixed nozzle version is 599 kg lighter.

Status: In production. Number: 2 . Thrust: 851.50 kN (191,425 lbf). Gross mass: 33,199 kg (73,191 lb). Unfuelled mass: 3,250 kg (7,160 lb). Specific impulse: 275 s. Specific impulse sea level: 245 s. Burn time: 90 s. Height: 16.20 m (53.10 ft). Diameter: 1.52 m (4.98 ft).

Thrust (sl): 758.000 kN (170,405 lbf). Thrust (sl): 77,350 kgf. Chamber Pressure: 90.00 bar. Area Ratio: 11. Propellant Formulation: HTPB.

Country: USA. Launch Vehicles: Delta 8930, Delta 4M+(4,2), Delta 4M+(5,4), Delta 4M+(5,2). Propellants: Solid. Stages: GEM 60. Agency: Hercules. Bibliography: 455.

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