Swedish Antiaircraft Artillery: Bofors 40mm Automatic Gun M1

Published on August 24, 2018
Duration: 13:50

This guide details the operational procedures for the Bofors 40mm Automatic Gun M1, drawing from expert insights by Ian McCollum. It covers the three-man crew roles, the mechanical action including recoil and breech operation, and the stabilization features of the M2A1 carriage. The information emphasizes the historical significance and continued relevance of this iconic anti-aircraft weapon system.

Quick Summary

The Swedish-designed Bofors 40mm Automatic Gun M1, adopted by the US in WWII, fires a 4lb shell with a 2lb HE projectile at 2,700-2,800 fps. It requires a three-man crew and has a rate of fire from 120-240 rpm. Post-war upgrades and its use on AC-130 gunships highlight its enduring effectiveness.

Chapters

  1. 00:00Introduction to the Bofors 40mm Gun M1
  2. 00:59Technical Overview and Ballistics
  3. 02:15US Manufacturing History and Production
  4. 04:12Crew Roles and Loading Procedure
  5. 06:44Mechanical Action and Recoil System
  6. 08:18M2A1 Carriage Features and Stability
  7. 10:00Post-War Upgrades and Modern Use

Frequently Asked Questions

What is the rate of fire for the Bofors 40mm Automatic Gun M1?

The Bofors 40mm Automatic Gun M1 has a rate of fire that can range from 120 rounds per minute in its original configuration to an upgraded 240 rounds per minute. This allows for significant suppressive fire capabilities.

How was the Bofors 40mm gun manufactured in the United States during WWII?

During WWII, the US licensed production of the Bofors 40mm gun. Chrysler manufactured approximately 60,000 guns and 120,000 barrels, while Firestone produced the necessary wheeled carriages, ensuring domestic supply.

What are the crew roles for operating the Bofors 40mm Automatic Gun M1?

Operating the Bofors 40mm gun requires a three-man crew: one for traverse control, one for elevation and firing (using a foot trigger), and a loader who feeds 4-round stripper clips.

What is the muzzle velocity of the Bofors 40mm gun?

The Bofors 40mm Automatic Gun M1 fires its projectile at a muzzle velocity of 2,700 to 2,800 feet per second, which is comparable to the velocity achieved by an M1 Garand rifle.

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