at anchor in Martin Bay,
Labrador To gather more weather information, the Germans developed the
Wetter-Funkgerät Land (WFL) automatic weather station. It was designed by Dr. Ernst Ploetze and Edwin Stoebe. Twenty-six were manufactured by
Siemens. The WFL had an array of measuring instruments, a
telemetry system and a 150 watt, Lorenz 150 FK-type transmitter. that powered the system. The WFL would send weather readings every three hours during a two-minute transmission on 3940
kHz. This is close to
Cape Chidley at the north-eastern tip of the
Labrador Peninsula. Schrewe selected a site this far north as he believed this would minimize the risk of the station being discovered by
Inuit. The U-boat undertook a combat patrol in the area of the
Grand Banks of Newfoundland during which she survived three attacks by Canadian aircraft, but sank no ships. The submarine reached port at
Lorient, France, on 8 December after 70 days at sea. She was sunk with all hands 11 months later on 11 November 1944 by the submarine
USS Flounder near the
Dutch East Indies. == Rediscovery ==