Formations were designed to protect heavy bombers against fighter attack and to concentrate the bomb pattern on the target. These formations evolved over time to counter enemy tactics and to adjust
The B-17 Bomber Crewman Who Survived 104 Combat Missions: M/SGT Hewitt T. Dunn, by Bryan Fusfield
Strategic Bombing Victorious > National Museum of the United States Air Force™ > Display
The Eighth Air Force vs. The Luftwaffe, The National WWII Museum
398th Bomb Group Combat Formations By Wally Blackwell, Pilot 601st Squadron December 2003
Masters of the Air B -17 Box Formations Explained
Today in World War II History—December 30, 1942
Bombing formation hi-res stock photography and images - Alamy
How did the bomber crews avoid hitting other planes in their own formation during WW2? - Quora
Masters of the Air: America's Bomber Boys Who Fought the Air War Against Nazi Germany: Miller, Donald L.: 8601417161630: : Books