During a Royal Australian Air Force training exercise over Brocklesby, two planes collided and interlocked in mid-air (pictured); the pilot of the upper plane was able to land safely using the lower plane's engines.

The Royal Australian Air Force (RAAF) is the principal aerial warfare force of Australia, a part of the Australian Defence Force (ADF) along with the Royal Australian Navy and the Australian Army. Constitutionally the governor-general of Australia is the de jure commander-in-chief of the Australian Defence Force. The Royal Australian Air Force is commanded by the Chief of Air Force (CAF), who is subordinate to the Chief of the Defence Force (CDF). The CAF is also directly responsible to the Minister for Defence, with the Department of Defence administering the ADF and the Air Force.

Brocklesby is a town in the Riverina region of south west New South Wales, Australia. The town is in the Greater Hume Shire Council local government area, 45 kilometres (28 mi) north-west of the regional centre of Albury. In the 2021 census Brocklesby had a population of 218.

On 29 September 1940, a mid-air collision occurred over Brocklesby, New South Wales, Australia. The accident was unusual in that the aircraft involved, two Royal Australian Air Force (RAAF) Avro Ansons of No. 2 Service Flying Training School, remained locked together after colliding, and then landed safely. The collision stopped the engines of the upper Anson, but those of the one underneath continued to run, allowing the aircraft to keep flying. The navigators of both aircraft and the pilot of the lower Anson bailed out. The pilot of the upper Anson found that he was able to control the interlocked aircraft with his ailerons and flaps, and made an emergency landing in a nearby paddock. All four crewmen survived the incident. The upper Anson was repaired and returned to flight service; the lower Anson was used as an instructional airframe.