Interim HOTOL Hotol 2 Hotol 2 is launched from the back of an Antonov 225 Credit - British Aerospace Gross Mass: 250,000 kg (550,000 lb). Empty Mass: 33,100 kg (72,900 lb). Thrust (vac): 7,840.000 kN (1,762,500 lbf). Isp: 455 sec. Burn time: 122 sec. Propellants: Lox/LH2. Isp(sl): 352 sec. Diameter: 10.00 m (32.00 ft). Span: 21.60 m (70.80 ft). Length: 36.45 m (119.58 ft). Country: UK/USSR. No Engines: 4. Engine: RD-0120. Status: Study 1990. Cost $ : 10.000 million. First Flight: 2005. Other designations: Interim HOTOL. Used on Launch Vehicles: Interim HOTOL.                   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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