1950s

In 1955, the US Army issued a requirement for the development of a next generation gas turbine-powered medivac helicopter The winner of this competition would be awarded to Bell with their Model 204, then designated as the XH-40, and later again in 1962 it was changed to UH-1 Iroquois. I have...

As you all know, in the unbuilt projects research business, squeezing stone sometimes gives intriguing info... Looking last night to the Martin projects list at the end of Narkiewicz/Thompson (publisher) book, I suddenly realized that the XB-68 bomber bore the 302A project number, BUT the...

In the book "Valkyrie - North American's Mach 3 Superbomber" they indicate that North American continued developement of the F-108 even after it was cancelled. They have a "1960" configuration that is a little puzzling. Either the canopy and windows shrunk considerably or the aircraft as a...