No. 7 Operational Training Unit RAAF

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Three 7OTU Liberators in formation 7OTU (AMW 043184).jpg
Three 7OTU Liberators in formation

No. 7 Operational Training Unit RAAF (7OTU) was a Royal Australian Air Force heavy bomber training unit of World War II. 7OTU was formed on 12 February 1944 at RAAF Station Tocumwal in southern New South Wales to train RAAF B-24 Liberator crews. 7OTU was initially equipped with ex-USAAF B-24Bs but later received new B-24Js. At full strength the unit was equipped with 54 B-24s and was responsible for training 28 crews per month. 7OTU was disbanded following the end of the war.

Royal Australian Air Force Air warfare branch of Australias armed forces

The Royal Australian Air Force (RAAF), formed in March 1921, is the aerial warfare branch of the Australian Defence Force (ADF). It operates the majority of the ADF's fixed wing aircraft, although both the Australian Army and Royal Australian Navy also operate aircraft in various roles. It directly continues the traditions of the Australian Flying Corps (AFC), formed on 22 October 1912. The RAAF provides support across a spectrum of operations such as air superiority, precision strikes, intelligence, surveillance and reconnaissance, air mobility, space surveillance, and humanitarian support.

Heavy bomber Bomber aircraft of the largest size and load carrying capacity

Heavy bombers are bomber aircraft capable of delivering the largest payload of air-to-ground weaponry and longest range of their era. Archetypal heavy bombers have therefore usually been among the largest and most powerful military aircraft at any point in time. In the second half of the 20th century, heavy bombers were largely superseded by strategic bombers, which were often smaller in size, but had much longer ranges and were capable of delivering nuclear weapons.

World War II 1939–1945, between Axis and Allies

World War II, also known as the Second World War, was a global war that lasted from 1939 to 1945. The vast majority of the world's countries—including all the great powers—eventually formed two opposing military alliances: the Allies and the Axis. A state of total war emerged, directly involving more than 100 million people from more than 30 countries. The major participants threw their entire economic, industrial, and scientific capabilities behind the war effort, blurring the distinction between civilian and military resources. World War II was the deadliest conflict in human history, marked by 70 to 85 million fatalities, most of whom were civilians in the Soviet Union and China. It included massacres, the genocide of the Holocaust, strategic bombing, premeditated death from starvation and disease, and the only use of nuclear weapons in war.

In 1944 one of the few verified instances of sabotage occurred at Tocumwal, when major sections of the wiring looms in 12 B-24s were cut and removed. This put the aircraft out of service for several months until the damage could be assessed, replacement looms fabricated in the USA, then installed by Consolidated technicians flown to Australia to do the work. The sabotage was believed to have been carried out by a Japanese cell that had been under cover in Australia since prior to the war, however no one was ever captured nor convicted of the act.

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