Jul 252015
I have added three hi-rez scans to the APR Patreon “Extras” Dropbox folder for the month of 2015-07. If you are interested in these, they are available to all $4 and up patrons at the APR Patreon.
Bell artwork from the late 70’s or ’80’s depicting the D316 tiltrotor, a proposed operational derivative of their XV-15 research tiltrotor.
Convair 58-9 SST, derived from the B-58 bomber (see HERE for a well illustrated article on this and other B-58 SSTs):
Early artwork for a VTOL fighter concept from Ryan; this would eventually become the X-13:
