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Tsar · 02-19-2009, 08:53 AM

In 1966 XB-70 reached Mach 3.06 and flew at Mach 3 for 32 minutes...
Blackbirds cruising speed was Mach 3.2.

02-19-2009, 08:53 AM	#11
Tsar MIR Join Date: Jul 2005 Posts: 9,692 iTrader: (3)	In 1966 XB-70 reached Mach 3.06 and flew at Mach 3 for 32 minutes... Blackbirds cruising speed was Mach 3.2.