huntzing@PICA.ARMY.MIL (CCL-S) (12/20/90)
From: "Hugh A. Huntzinger" (CCL-S) <huntzing@PICA.ARMY.MIL> Bertil Jonell asks: }Does anyone know how fast the warhead of a ballistic missile travel during }final phase? GE does reentry simulation in a little known wind tunnel in south 'Philly; I always botch up the name...Hyperaeroballistic Chamber? At low pressures (millibars), they run around Mach 2 - 3 @ circa 5,000 F. Calculate the Mach number at this temperature to translate it to miles/second.