1995 TSTO Space
Van
(4200 kg payload or 16 passengers; 350 tonne gross with 86 tonne orbiter;
both stages piloted)
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1982 Air Launched Space
Van
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Modified 747 carrier aircraft
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Orbiter gross mass: 64 tonnes
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Orbiter-mode payload: 300 kg
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Booster-mode payload payload
with semi-expendable upper
stage: 3000 kg
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Piloted
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1971 HTOL Assisted SSTO:
"Windjammer"
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Assisted single-stage-to-orbit
with either a ground sled or a
"flyable sled"
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1000 tonne gross mass
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15,000 kg payload
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Piloted
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1967 VTHL Assisted SSTO (picture not available)
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1100 tonne gross; 15,000 kg payload
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Rocketdyne aerospike main engine derived from J-2 turbomachinery
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Six Rocketdyne H-1 takeoff assist engines (dropped at launch site)
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