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By the time the definitive B-17G appeared, the number of guns had been increased from seven to 13, the designs of the gun stations were finalized, and other adjustments were completed. The B-17G was the final version of the Flying Fortress, incorporating all changes made to its predecessor, the B-17F, [ 64 ] and in total, 8,680 were built, [ 75 ...
The design was mainly deployed on the B-17 Flying Fortress and the B-24 Liberator, as well as the United States Navy's Liberator, the PB4Y-1. The ventral turret was used in tandem in the Convair B-32, successor to the B-24. Ball turrets appeared in the nose and tail as well as the nose of the final series B-24.
As U.S. participation in the war started, the U.S. Army Air Forces drew up widespread and comprehensive bombing plans based on the Norden. They believed the B-17 had a 1.2% probability of hitting a 30 meters (100 ft) target from 6,100 meters (20,000 ft), meaning that 220 bombers would be needed for a 93% probability of one or more hits.
The B-17B (299M) was the first production model of the B-17 and was essentially a B-17A with a slightly larger rudder, larger flaps, a redesigned nose and 1,200 hp (890 kW) R-1820-51 engines. The small, globe-like, machine gun turret used in the Y1B-17's upper nose blister was replaced with a .30 in (7.62 mm) machine gun, its barrel run through ...
Submachine guns. Bergmann MP 18-I; FIAT Mod.1915 (Captured) Rifles. Elefantengewehr; GRC Gewehr 88/05, Gewehr 88/14, Gewehr 91 and Karabiner 88; Mauser Gewehr 71 and 71/84; Mauser Gewehr 98 (Standard issue rifle) Mauser Karabiner 98a; Mauser M1887; Mauser M1915 and M1916 Selbstlader; Mondragón M1908; Mosin Nagant (Captured) Werder M1869; Ross ...
Although the combat box was initially designed around a group of airplanes, it was expanded to include a formation of three groups flying together as a "combat wing", all of which were based on the same triangular design of a leading bomber (or grouping of bombers) in the center, and two bombers (or groupings) immediately behind in a vee shape, with one at an altitude above and one below the ...
Radial engines of B-17 in flight. As of December 2022, 18 B-17s were registered with the Federal Aviation Administration (FAA). [3] These include Nine-O-Nine (N93012, crashed in October 2019), Texas Raiders (N7227C, crashed in November 2022), and a B-17G registered in Granite Falls, Minnesota (N4960V) [4] that was scrapped in 1962. [5]
The first anti-aircraft guns were devised out of necessity; Germany was far ahead of the Allies in using heavy indirect fire. The German Army employed 150 mm (6 in) and 210 mm (8 in) howitzers in 1914, when typical French and British guns were only 75 mm (3 in) and 105 mm (4 in). The British had a 6-inch (152 mm) howitzer, but it was so heavy ...