#y1b-17

[lonestarflight]

"A flight of Boeing Y1B-17 Flying Fortresses banks in to fly over Manhattan. The bombers were assigned to the 96th Bombardment Squadron, which had twelve Y1B-17s on strength. At the time these were the only heavy bombers in the USAAC inventory. "

Date: March 28, 1937

source

[carbone14]

Version de présérie Y1B-17 du bombardier lourd Boeing B-17 Flying Fortress – 1937

©National Museum of the U.S. Air Force - 060512-F-1234S-008

[lonestarflight]

Boeing Y1B-17 Flying Fortresses, 2nd Bombardment Group, over New York City, during American Legion Parade.

Photographed by Major G.W. Goddard.

Date: September 21, 1937

NARA: 276537898

source, source, source

Colorized by howdicolour: link

[lonestarflight]

Evolution of the B-17

[fcba]

Boeing Y1B-17 in flight c. 1937. (NMUSAF)