Timberwind 250 Propellants: Nuclear/LH2. Thrust(vac): 2,451.600 kN (551,142 lbf). Thrust(sl): 1,912.300 kN (429,902 lbf). Isp: 1,000 sec. Isp (sea level): 780 sec. Burn time: 493 sec. Mass Engine: 8,300 kg (18,200 lb). Diameter: 8.70 m (28.50 ft). Chambers: 1. Thrust to Weight Ratio: 30.12. Country: USA. Status: Development ended 1992. Timberwind 250 used on Rocket Stages Used on stage: Timberwind 250. on launch vehicle: Timberwind.                   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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