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Air Observation Post

From Wikipedia, the free encyclopedia

Air Observation Post (AOP) is an aeroplane or helicopter used in the role of artillery spotter by the British Army and Commonwealth forces. In this role, either the pilot of the aircraft or another crew member acts as an observer watching for targets on the ground, and/or as a Forward Observation Officer directing the fire, by radio, of artillery on the ground (or calling in tactical ground-attack aircraft).[1]

Background

In the interwar period, the role of artillery spotting was mixed with reconnaissance and ground attack to be served by Army Co-operation (AC) squadrons. At the beginning of World War II their standard aircraft was the Westland Lysander. This aircraft had a high level of losses with the British Expeditionary Force during the Battle of France (118 shot down out of a total of 175 deployed). This demonstrated the unsuitability of the Lysander for Army Co-operation and called into question the whole concept. These RAF squadrons converted to fighter-bomber aircraft by 1941, dropping the liaison and artillery spotting roles.[2]

World War II - British development

The first of the dedicated Air Observation Post units was established by Major Charles Bazeley of the Royal Artillery. Working as D flight of an RAF unit and equipped with the Auster, they went to France in February 1940 to develop the role on the French artillery ranges, in liaison with the French army. This training and development work had to be abandoned when the German blitzkrieg got underway and the unit was back at its UK base in Old Sarum by 20 May 1940. The flight had been ordered to disband, but the Army resisted this, and the intervention of General Alan Brook, who was Commander in Chief Home Forces at the time, was able to secure the future of the flight and the concept of the AOP.[3]:11–12

By 1942, AOP squadrons 651, 652, and 653 were in existence. Ultimately the AOP units consisted of squadrons 651 to 663, with 664, 665 and 666 as RCAF units with both Canadian and British personnel.

The key difference from the Army Co-operation squadrons was that AOP pilots were from the Royal Artillery. The RAF provided the technicians to service the aircraft and the equipment officers and adjutants. The rest of each unit was provided by the army, including signalers and drivers. A further unusual feature of Air Observation Post squadrons was that all pilots were officers, and they were nearly all captains. Since most operations were carried out separately by individual flights, this lack of rank structure in squadrons tended not to produce problems.[3]

During World War II, British AOP units used light, fixed-wing aircraft, almost exclusively several marks of Auster aircraft. The low speed, high manoeuvrability, small size (so aiding concealment at front-line landing grounds) and light weight of the Auster made this a much more suitable aircraft than the Lysander. The standard tactic of dealing with enemy fighter aircraft was to fly very low around a hill or a wood. Casualty rates for AOP pilots turned out to be relatively low, certainly compared to RAF pilots or infantrymen. One source of losses in combat was the aircraft being hit whilst flying through the path of outgoing shells. This was a particular hazard in intense bombardments: four aircraft were lost in this way during the crossing of the Rhine in March 1945.[3]:155

Postwar

In 1957, the newly formed Army Air Corps was created from existing army units. Fixed wing aircraft were steadily replaced by helicopters.[1]

See also

References

  1. ^ a b History of AOP at forcesreunited.org.uk Archived 22 August 2011 at the Wayback Machine
  2. ^ "Westland Lysander". www.historyofwar.org.
  3. ^ a b c Munro, Ronald Lyell (2016). Above the Battle: An Air Observation Post Pilot at War (Kindle ed.). Barnsley: Pen & Sword Books Ltd. ISBN 978 1 47387 275 2.

Bibliography

  • Parham, Major General H.J. & Belfield, E.M.G. 1956, 1986. Unarmed Into Battle: The Story of the Air Observation Post. Warren & Son, for the Air O.P. Officers' Association, 2nd edition ISBN 978-0-948251-14-6

External links

This page was last edited on 25 February 2020, at 23:11
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