La tourelle inférieure ( ball turret) sur le B-17 a été construite par Sperry.
A Vertigo Sufferer's Nightmare: the Ball Turret Ordeal
How to Be a Ball Turret Gunner | Air & Space Magazine| Smithsonian Magazine
WWII B-17 Ball Turret Gunner explains his tight quarters in the belly of the Flying Fortress - YouTube
The Vintage News - A B-17 ball turret gunner. The turret was very small in order to reduce drag, and was typically operated by the smallest man of the crew. | Facebook
US airman examining smashed ball turret on a B-17 Flying Fortress, Thurleigh Airfield | The Digital Collections of the National WWII Museum : Oral Histories
Air and Ground Crew Inspect a B-17 Flying Fortress Ball Turret Prior to Loading the Gun, Stock Photo, Photo et Image Droits gérés. Photo MEV-11950169 | agefotostock
Gunners > National Museum of the United States Air Force™ > Display
The B-17 Ball Turret Gunner | The Arrowhead Club
The View from the Ball Turret | Silver Wings Coffee Co.
B-17 Flying Fortress Ball Turret Palm Springs Air Museum Photo Stock - Alamy
In 1943, ball turret gunner Alan Magee's B-17 bomber was hit by flak and began to spin out of control. He fell over four miles without a parachute before crashing through the
B-17 Flying Fortress Ball Turret Palm Springs Air Museum Photo Stock - Alamy
World War II veteran describes being a ball turret gunner in B17 - YouTube
B17 Ball Turret Photograph by Glenn Thompson - Fine Art America
Heroes, Heroines, and History: WWII B-17 Ball Turrets and the Gunners That Manned Them
B-17 Ball Turret, Ammunition and the story of a Ball Turret Gunner
B-17 Ball Turret interior | Imagine being curled up in this … | Flickr
In God I Trust: The Story of WWII B-17 Ball Turret Gunner Frank Perez – World War 2 History Short Stories
Mighty 8th's B-17 gets its ball-turret
Dr Sarah-Louise Miller 🇺🇦 on X: "Some B-17s and B-24s had a ball turret like this one. The gunner would sit inside to help defend the underside of the aircraft. It was