i never heard of a v-22 before, can you tell me some more about it?

The first of four LRIP (low-rate initial production) MV-22 models completed Operation/Evaluation in August 2000. Following an aircrash in December 2000, a number of upgrades are taking place including redesign of hydraulics and wiring in the nacelles and improved flight control software. A two-year flight test program began in May 2002 to be followed by a second OP/EVAL phase. Initial Operating capability is planned for 2005. USAF CV-22 resumed flight testing in September 2002. 360 MV-22 have been ordered and 50 CV-22 (to replace MH-53J Pave Low helicopters).
