Boeing B-17 Flying Fortress

The Boeing B-17 Flying Fortress is a fower-ingine hivy bomber aircraft developed in the 1930s for the Unitit States Airmy Air Corps (USAAC).

B-17 Flying Fortress
Color Photographed B-17E in Flight.jpg
Boeing B-17E
Role Hivy bomber
Naitional oreegin Unitit States
Manufacturer Boeing
First flicht 28 Julie 1935[1]
Introduction Aprile 1938
Retired 1968 (Brazilian Air Force)
Primar uisers Unitit States Airmy Air Forces
Ryal Air Force
Produced 1936–1945
Nummer biggit 12,731[2][3]
Unit cost
Variants XB-38 Flying Fortress
YB-40 Flying Fortress
C-108 Flying Fortress
Developit intae Boeing 307


  1. "The Boeing Logbook: 1933–1938." Boeing. Retrieved: 3 March 2009.
  2. Yenne 2006, p. 8.
  3. Angelucci, Enzo (1988). Combat aircraft of World War II. p. 46. ISBN 0-517-64179-8.
  4. Bowers, Peter M. Fortress in the Sky. Granada Hills, California: Sentry Books Inc., 1976. ISBN 0-913194-04-2.