What we know about the B-17 Flying Fortress, P-63 Kingcobra planes that crashed in Dallas

A Bell P-13 Kingcobra collided in midair with a B-17 Flying Fortress during the Wings Over Dallas air show on Saturday at Dallas Executive Airport.

Here is what we know about the aircraft.

B-17 Flying Fortress

The four-engine B-17 was developed by Boeing in the 1930s and dropped more bombs than any other American aircraft during World War II, according to the Delaware Division of Historical and Cultural Affairs.

More than 10,000 B-17s were produced, but only a few survive today, according to Boeing. The B-17G Flying Fortress was equipped with 11 to 13 machine guns and capable of a 9,600-pound bomb load.

The 36-seat plane in Dallas was owned by American Airpower Heritage Flying Museum in Dallas, according to its registration. The plane was manufactured by Douglas Aircraft Corp. at Long Beach, California, and delivered to the U.S. Army Air Corps in 1945, according to Airplanes Online.

Boeing built 6,981 B-17s; another 5,745 were built by Douglas and Lockheed under a collaborative effort, according to Boeing.

A B-17 with 13 people aboard crashed at a 2019 air show in Connecticut, killing seven and injuring six. The National Transportation Safety Board said pilot error likely caused the crash. It also said inadequate maintenance was a factor.

Bell P-63 Kingcobra

The single-engine Bell P-63 Kingcobra was never used in combat by the United States, according to the National Museum of the United States Air Force. The Soviet Union received about two-thirds of the 3,303 planes that were built, which were between 1943 and 1945, according to History of War.

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