In 1947, both the U.S. Air Force and the U.S. Navy sponsored VTOL design studies called project Hummingbird. The rapid development of increasingly powerful powe

Presents the original proposal for the Convair Class VF Convoy Fighter, which led to the XFY-1 Pogo turboprop tailsitter naval aircraft of the early 1950s. Also

The Martin Model 262 was an unconventional turboprop VTOL aircraft proposal submitted to the US Navy’s convoy fighter competition of 1950, which ultimately pr

The Northrop N-63 was an unconventional VTOL turboprop tailsitter aircraft proposal submitted to the US Navy's convoy fighter competition of 1950, which ultimat

This aviation handbook is designed to be used as a quick reference to the classic military heritage aircraft that have been flown by members of the Canadian Air