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No. 100 Squadron RAAF
Beaufort (AWM OG3362).jpg
Four No. 100 Squadron Beauforts near the New Guinea coastline in 1945
Active 1942–1946
Country  Australia
Branch Ensign of the Royal Australian Air Force.svg Royal Australian Air Force
Engagements World War II
John Balmer (1942–43)
Aircraft flown
Bomber Bristol Beaufort (1942–46)

No. 100 Squadron was a Royal Australian Air Force bomber and maritime patrol squadron of World War II. The Squadron was formed in 1942 and was disbanded in 1946.


No. 100 Squadron was formed at RAAF Base Richmond on 15 February 1942. The Squadron was formed from a nucleus of No. 100 Squadron RAF, which had been destroyed during the Malayan Campaign, and was named in this Squadron's honour. Despite this link No. 100 Squadron RAAF was an Australian squadron throughout its existence and should not be confused with its British namesake, which was re-formed as a heavy bomber squadron in Britain on 15 December 1942.

Flying from bases in Queensland and staging through Port Moresby, No. 100 Squadron flew its first combat missions in June 1942, making it the first of the RAAF's Beaufort bomber-equipped squadrons to see combat. After completing its training the Squadron deployed to Milne Bay in New Guinea in October 1942.

In October 1942, while participating in a training exercise off the coast of Townsville, Beaufort A9-26 of the No. 100 Squadron struck the mast of the wrecked SS City of Adelaide in Cockle Bay, Magnetic Island. The aircraft plunged into the shallow water below and the fuselage disintegrated on impact killing three RAAF officers and one US Navy Officer aboard.

Flying from bases in eastern New Guinea No. 100 Squadron flew reconnaissance patrols and anti-shipping and bombing missions against the Japanese in the Solomon Islands and New Guinea mainland. While the squadron participated in the Battle of the Bismarck Sea it was not successful in sinking any ships in this battle and operated solely in the level bombing role from March 1943.

As a level bomber squadron No. 100 Squadron conducted bombing missions against Japanese facilities throughout New Guinea and surrounding islands, including the key base at Rabaul. The Squadron continued in this role until the end of the war and was disbanded at Finschafen on 19 August 1946.


  • Steve Eather (1995) Flying Squadrons of the Australian Defence Force. Aerospace Publications.
  • RAAF Historical Section (1995) Units of the Royal Australian Air Force – Volume 8: Bomber Units. Australian Government Publishing Service.

External links

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