An-225
Buran Atop Mriya
Buran atop its An-225 Mriya carrier, as displayed at the Paris Air show shortly after its spaceflight.
Credit - © Mark Wade
Gross Mass: 600,000 kg (1,320,000 lb). Empty Mass: 216,000 kg (476,000 lb). Thrust (vac): 1,387.072 kN (311,826 lbf). Isp: 9,000 sec. Burn time: 3,375 sec. Propellants: Air/Kerosene. Isp(sl): 8,000 sec. Diameter: 18.07 m (59.28 ft). Span: 88.40 m (290.00 ft). Length: 84.00 m (275.00 ft). Country: Ukraine. No Engines: 6. Engine: D-18T. Status: Development ended 1988. Cost $ : 100.000 million. dV Equivalent: 270 m/s (880 ft/sec). Payload: 275,000 kg (606,000 lb). Release velocity: 240 m/s (780 ft/sec). Release altitude: 8.50 m (27.80 ft). Release conditions: 900 kph at 9.5 km.

Antonov cargo aircraft swept wing. Release conditions: Piggy-back, 275,000 kg, 38.0 m length x 24.0 m wingspan, 900 kph at 9,500 m altitude. Effective velocity gain compared to vertical launch 270 m/s.

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