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Negev 5

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Negev

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Status: Study 2004.

Negev was a design by Dov Chartarifsky of IL Aerospace Technologies (ILAT), Israel. In the 2004 version, the spacecraft was to be launched from ground level using a hot-air balloon as a first stage. After being dropped from the balloon at an altitude of 10 km, the spacecraft would fire an 8,000 kgf thrust solid rocket motor for 96 seconds. At engine burnout, the vehicle would be traveling at Mach 3.4 at an altitude of 49.6 km. The crew would experience weightlessness for four minutes, reaching a maximum altitude of 120 km. During descent, the nose sphere would detach from the capsule. It would remain connected by a cable, serving as a drag brake and stabilizer during the re-entry. At an altitude of 5 km, and a velocity of ~85m/sec, drogue and main chutes would deploy sequentially. The main chute would slow the capsule down to 7 m/sec before splashdown. Stability in the water was ensured by the ballast of the rocket motor casing.