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VTOVL orbital launch vehicle. Year: 1997. Family: VTOVL. Country: Germany. Status: Study 1987. Beta II was Dietrich Koelle's largest SSTO concept, with a nominal 2000 tonne lift-off mass SSTO design and 100 tonne payload. In 1986 he updated the design. Use of a more sophisticated trajectory analysis indicated a lower total velocity to reach orbit - a 15 tonne payload could be delivered using a 460 tonne vehicle. Subsequent revisions included the Beta IIrev in (12 tonnes payload, 600 tonne lift-off mass) and Beta IIa in 1993 (18 tonnes payload at same 600 tonne lift-off mass). Manufacturer: MBB. LEO Payload: 100,000 kg (220,000 lb). to: 90 km Orbit. at: 6.00 degrees. Liftoff Thrust: 27,500.000 kN (6,182,200 lbf). Total Mass: 2,000,000 kg (4,400,000 lb).
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