Used by Australia, Canada, China, Netherlands, New Zealand, Portugal, South Africa, the Soviet Union, United Kingdom, and United States.
U-boats captured or destroyed
On August 21, 1941 / August 27, 1941, a Hudson of Squadron No. 269 helped cause U-boat U-570 surrender.
On March 15, 1942, US Navy Hudsons sank two U-boats.
On July 7, 1942, an A-29 sank U-701.
In May 1943 a Hudson was the first to sink a U-boat with rockets.
The Lockheed Hudson was the first American built plane to serve with the Royal Air Force (RAF). The United Kingdom ordered 200 (increased to 350) Hudson Mk Is. The first one arrived in Liverpool on February 15, 1939 / 1939. Eventually the British were to receive ~2,000. Of these 1,170 were supplied under Lend-Lease.
The first unit to receive the Hudson was the Royal Air Force's No. 224 Squadron. These replaced their Avro Ansons. The first unit was with the Coastal Command in Scotland.
The Hudsons were used with Coastal Command as reconnaissance aircraft.
On October 8, 1939, a Hudson shot down the first German aircraft of the war.
A Hudson lead the British navy to the German prison ship the Altmark in February 1940.
The No. 280 Squadron was the first to have Hudsons drop lifeboats in the North Sea in 1943.
2,487 Hudsons were purchased by the United Kingdom. 423 were supplied to Australia, Canada, China, New Zealand, Portugal, and South Africa.
By the end of the war the Hudson was being primarily used as a transport plane in 31 RAF squadrons.
There were Lockheed Hudsons based in Manaos, Brazil to patrol the South Atlantic.
Starting in January 1940 the first of 247 Hudsons were delivered to Australia. Two squadrons were hit by the Japanese attack on Malaya on December 8, 1941.
United States Navy
Twenty PBO-1s (A-29s) were received by the US Navy. These scored the first two submarine kills for the US Navy.