| 31. | A variant of SSTO is a hypersonic, scramjet-powered, airbreathing vehicle.
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| 32. | Both hypersonic physics experiments on board were destroyed.
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| 33. | This greatly reduces the thermodynamic temperature of hypersonic gas decelerated near an aerospace vehicle.
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| 34. | The Reaction Motors XLR99 rocket engine that powered the hypersonic research aircraft used liquid ammonia.
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| 35. | Finally, the increased temperature of hypersonic flows mean that real gas effects become important.
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| 36. | The NASP program became the Hypersonic Systems Technology Program ( HySTP ) in late 1994.
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| 37. | This demonstrated that the SABRE engine class has applicability for air-breathing hypersonic flight,
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| 38. | The Talon is capable of hypersonic flight with two combined pulse detonation / scramjet engines.
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| 39. | Finally, scramjets with supersonic combustion cover the range of high supersonic to hypersonic speeds.
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| 40. | The hypersonic regime is often alternatively defined as speeds where ramjets do not produce net thrust.
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