4572 Claire Chennault, Addison, TX 75001 | 972-380-8800 | Hours: Mon-Sat: 9am - 5pm, Sun: 11am - 5pm | Admission: Adults: $10, Seniors & Military: $8, Children(4-12): $5

 Cavanaugh Flight Museum Warbirds Over KADS

Bofors 40MM Gun



BORE 40MM (1.575 inches)
LENGTH OF GUN 12 feet 4.8 inches
MAXIMUM RANGE 11,000 yards (5.5 nautical miles) at 42º
MAXIMUM CEILING 22,800 feet at 90º
MUZZLE VELOCITY 2890 feet per second
RATE OF FIRE 160 rounds per minute
MANUFACTURED BY Firestone Tire and Rubber Company
The Bofors 40mm antiaircraft gun was designed in Sweden, and became the standard medium caliber anti-aircraft cannon for the Allies during World War II. The US Army tested the air-cooled Bofors in 1937, and Chrysler received a contract to manufacture the weapon to British drawings in 1940. Several of the Army model guns, M1 and M2, were deployed on US Navy ships and submarines. Water-cooled versions were deployed on most US warships and support ships during the war in single, twin and quad mounts.

The Firestone Tire and Rubber Company built the museum' s example in 1942. It is a manually operated gun, with the two crewmen seated on the carriage, supported by loaders feeding four-round clips into the top of the gun. The crewman in the left-hand seat was the pointer, who controlled the gun's elevation by turning a crank. The other crewman was the trainer, who controlled the right/left movement of the gun with another crank. Both crewmen had rudimentary bead-and-ring sights to track the aircraft and estimate lead angles. If time permitted, the guns were tied into a director system so that multiple guns could engage the same target, increasing the probability of destroying the plane. The typical anti-aircraft engagement range was 4,000 to 5,000 yards.
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The Cavanaugh Flight Museum is a non-profit 501(c)(3) educational organization devoted to promoting aviation studies and to perpetuating America's aviation heritage; the museum fulfills its mission by restoring, operating, maintaining and displaying historically-significant, vintage aircraft, and by collecting materials related to the history of aviation.



4572 Claire Chennault, Addison, TX 75001  [Map] (North of Downtown Dallas)

Phone Number: 972-380-8800

Hours: Mon - Sat: 9:00am - 5:00pm, Sun: 11:00am - 5:00pm

Admission: Adults: $10.00 Seniors & Military: $8.00 Children (4 - 12): $5.00 Children 3 & Under: Free

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