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Second World War
Battle of the Atlantic  - Weapons and Technology

Combatants in the battle of the Atlantic relied on weapons and technology to attack the enemy, to defend themselves, to communicate, and to rescue friends and foes.

4-inch Naval Gun and Mounting
4-inch Naval Gun and Mounting

This weapon, and its mounting, are late-war developments of the main gun carried by Canadian corvettes and other escort ships.

The original design of this gun dated to the First World War. While effective against surfaced submarines and capable of firing starshells to provide night-time illumination, it proved relatively slow to operate and offered little protection to its crew. This modified version, developed too late to see service during the Second World War, could fire shells faster and farther. An improved gun shield offered better protection to its crew.

Gun, Naval, 4-inch, Quick-firing, Mk XXI
Mount, Naval, 4-inch, Mark XXIV
CWM 19740508-001

4-inch Naval Gun and Mounting
.5-inch Vickers Mk III Heavy Machine-gun
"Pom-Pom" Anti-Aircraft Gun, HMCS Kamloops
Anti-Aircraft Gun and Crew in Action
Depth Charge and Thrower
Hedgehog Anti-submarine Projectile
Squid Anti-submarine Mortar
"Squid Explosion", HMCS Copper Cliff
Medium Frequency Direction Finding Loop
Binnacle, HMCS Swansea
Gyroscopic Compass
Taffrail Log
Wheel House
Fueling Mid Atlantic
German Signal Lamp
W/T Operator and Messenger
"Mae West" Life Belts, HMCS St. Laurent
Royal Canadian Navy Life Vest
Royal Canadian Navy Lifeboat Bailer
Lee-Enfield Line-throwing Rifle