Boeing launched the B-17 prototype on July 28, 1935. Known then as ‘Model 299’, it represented the ultimate in state-of-the-art technology. The plane boasted four turbo-charged engines, a hulky frame, twelve .50 caliber machine-gun mounts, and the ability to fly higher and longer than anything previously built.

The U.S. Army Air Corps designated the plane as the B-17. Used as a strategic weapon, it quickly took on a reputation of mythic proportions. Yet, by the end of WWII, technology had surpassed the B-17 and the plane was considered all but obsolete. New planes featured pressurization, hydraulics, heat, longer range, and larger bomb loads including rocket technology.

Today, in both the achievements of the plane itself and those who flew it, the B-17 remains an icon of American intelligence, resilience and achievement.

B-17 Specifications

Following its introduction, the B-17 went through five design modifications (Models A-E). A total of 645 of these early models were built (plus the prototype). Two later modifications, the B-17F and B-17G, were the primary models used in WWII.

The B-17F was used in the early war years, but proved to be vulnerable at the nose. The addition of a ‘chin turret’ in the G-model allowed for extra fire-power and protection. Other G-model modifications included plexiglass in the waist gunner windows, as well as staggered waist gunner positions.

Boeing, Douglas and Vega all produced B-17 aircraft. A total of 12, 731 planes were built, including 646 prototypes, 3405 F-models and 8680 G-models.