This page no longer updated from 31 October 2001. Latest version can be found at Kholod

Gross Mass: 550,000 kg. Propellants: Air/Kerosene Country: Russia. Status: Design. Comments: Mikoyan supersonic cargo aircraft, designed from Sprial 50-50 design. Combined-cycle turbo-ramjet engine. Release conditions: Piggy-back, 200,000 kg, Mach 5 at 25 to 30 km altitude. Effective velocity gain compared to vertical launch 1130 m/s.
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Last update 12 March 2001.
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© Mark Wade, 2001 .