[ Editor's note: Since this story was originally published, the V-22 program office informed InsideDefense.comthat its officials erred in saying the request for proposals had yet to be released. The document was released this month, before the Farnborough air show began. ] FARNBOROUGH, ENGLAND -- Defense officials are poised to issue Bell Helicopter Textron and Boeing the final request for proposals for a multiyear deal to buy 183 V-22 Ospreys for Marine Corps and Air Force troops. The V-22 program...