|
SR-71
Jun 29, 2014 9:50:57 GMT -7
Post by Robert on Jun 29, 2014 9:50:57 GMT -7
Unofficially, the SR-71 carried many nicknames, including the "Habu," "SR," "Lady in Black," and "Sled;" but most of us know the SR-71 as the "Blackbird." The SR-71 was developed as a long-range strategic reconnaissance aircraft capable of flying at speeds over Mach 3.2 and at 85,000 feet. The first SR-71 to enter service was delivered in 1966 and due to politics, it was retired in 1990. However, the USAF still kept a few SR-71s in operation up until 1998, after a few were brought back to service in 1995. NASA's DFRC at Edwards AFB, CA flew the SR-71 from 1991 until its final flight in October 1999. The airframe of the SR-71 is very unique. To withstand the friction-generated heat at Mach 3+, over 90 percent of the airframe is made of titanium composite. Also to withstand heat, the main gear tires have been impregnated with aluminum and are filled with nitrogen.(Thanks to SR-71.org for the history) a family photo of the A-12, M-21, YF-12 and the SR-71
|
|