Delta Thor ELT Gross Mass: 84,067 kg (185,336 lb). Empty Mass: 4,059 kg (8,948 lb). Thrust (vac): 1,030.208 kN (231,600 lbf). Isp: 296 sec. Burn time: 222 sec. Propellants: Lox/Kerosene. Isp(sl): 262 sec. Diameter: 2.44 m (8.00 ft). Span: 2.44 m (8.00 ft). Length: 22.40 m (73.40 ft). Country: USA. No Engines: 1. Engine: RS-27. Status: Out of production. Cost $ : 11.600 million. First Flight: 1972. Last Flight: 1990. No Launched: 25. Other designations: Extended Length Tank Thor. Used on Launch Vehicles: Delta 1000. Delta 4000. N. N-2.                   Contact us with any corrections, additions, or comments. Conditions for use of drawings, pictures, or other materials from this site.. To contact astronauts or cosmonauts. © Mark Wade, 1997 - 2007 except where otherwise noted.

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