Britain's aircraft-mounted .303 Browning machine gun with weapons expert Jonathan Ferguson

Published on April 20, 2022
Duration: 21:54

This video details the Browning .303 aircraft machine gun, adopted by Britain in the 1930s. It highlights technical modifications made for British cordite propellant, such as the conversion to an open-bolt system to prevent cook-offs. The discussion also contrasts fighter and bomber variants and demonstrates the unique double-cocking loading procedure.

Quick Summary

The Browning .303 aircraft machine gun, adopted by Britain in 1935, was modified for cordite propellant by converting to an open-bolt system to prevent cook-offs. Fighter variants used pneumatic activation, while bomber versions used hydraulic activation, and it featured a unique double-cocking loading procedure.

Chapters

  1. 00:00Introduction: Colt .303 Aircraft Machine Gun
  2. 02:40British Adoption & Trials (1930s)
  3. 03:45Technical Mods: Cordite & Open-Bolt System
  4. 07:29Fighter vs. Bomber Variants
  5. 11:42Operational Demonstration: Double-Cocking
  6. 13:00Evolution & Obsolescence of .303 Browning

Frequently Asked Questions

What modifications did the Browning .303 aircraft machine gun undergo for British service?

The Browning .303 aircraft machine gun was modified to handle British cordite propellant, which burns hotter. A key change was converting the design from a closed-bolt to an open-bolt system using a specific rear sear release mechanism to prevent 'cook-offs' at high rates of fire.

How did fighter and bomber versions of the .303 Browning aircraft gun differ?

Fighter versions typically used pneumatic activation, requiring two hoses for remote firing from the cockpit. Bomber versions, often mounted in turrets like those on the Lancaster, usually employed hydraulic activation and included a 'hand fire and safe' unit on the side.

What was the operational significance of the .303 Browning in WWII?

The .303 Browning was a primary armament for British aircraft early in WWII, equipping iconic planes like the Spitfire and Hurricane. Its high rate of fire made it effective, though it was later supplemented or replaced by more powerful cannons.

How was the Browning .303 aircraft machine gun loaded and fired?

It required a unique double-cocking process. The first pull extracted a round from the belt, and the second set the bolt on the rear sear. Firing occurred when the pneumatic or hydraulic trigger released the bolt to chamber and fire the round.

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