Objects and Photographs


You do not have Flash Player installed on this computer. You can download it here: Adobe
Motor Launches Attack an Enemy Submarine
Motor Launches Attack an Enemy Submarine

Royal Navy motor launches attack a submerged German U-Boat (submarine) after detecting it through a hydrophone, a type of underwater microphone.

These motor launches have likely dropped depth charges in the hope of hitting the submerged U-Boat, and are searching the area for debris while listening for further sounds of the enemy. Motor launches helped counter the U-Boat threat, carrying out duties that included patrolling anti-submarine barriers like minefields and underwater steel nets.

George Metcalf Archival Collection
CWM 20030213-002_31

Torpedo Practice, HMCS Grilse
Lieutenant Jack Ross and Sailors of HMCS Grilse
Two Sailors on Board HMCS Grilse
HMCS Grilse's Crew
Convoy of the First Contingent
Bridge, RMS Megantic
SS Scandinavian, Canadian Transport
Dazzle-painted Merchant Ship, Halifax Harbour
Thomas Moore in Summer Uniform
Thomas Moore, Postwar
Royal Navy Warships, Firth of Forth, Scotland
Sub-Lieutenant Douglas Urry, Royal Naval Canadian Volunteer Reserve
"And it blew wondrous cold", Royal Naval Motor Boat Reserve
Motor Launch ML 399, in Drydock, Grimsby
Reloading Motor Launch ML 139 with Depth Charges
Motor Launches Attack an Enemy Submarine
Motor Launch Rescues Crashed Seaplane
Canadians Serving in HMS Canada
Flight Commander Wilfred Austin Curtis
Halifax Pier, 1917
YMCA Building, Halifax, 1917
Dockyard Gate, Halifax, 1917
HMS Highflyer
HMCS Niobe, 1917