Roxons wrote: 
Why the V-22? it has been a revolutionary design...
True, the V-22 has overcome many difficulties in its time, many of which plagued V/STOL aircraft for well over half a century. A significant portion of the V-22's life was spent attempting to overcome these issues, and many of them have been worked out ... at the cost of many lives.
The design is far from new and revolutionary, however. The American X-18 and X-19 (Curtiss X-200), in particular, did an excellent job spearheading the future V-22 design and principles. I think the X-19 could have easily been the first V-22, if Curtiss had been willing to put more interest and funding into the project (the military was certainly interested even back then). Many countries had also been toying with the idea, at various levels of success; the Russian Yak-38, for instance, was even successful enough to enter 'combat'.
The first decade of the V-22's life were relatively pathetic. Many more modifications, training exercises and desperate attempts at keeping the project alive have allowed the V-22 to limp its way into the history books, but I personally find it to be far from an impressive aircraft. I guess it isn't entirely the Osprey's fault that it had such a rough start, and the military seems to be gung-ho about it. The bottom line is that they
really need this design, and so it's pretty much guaranteed to succeed.
~JetWhiz

Tuesday, May 19, 2009 -- 11:58:04 AM PDT