Metropolitan Police Air Support Unit

The Air Support Unit (ASU) was a Central Operations branch of London's Metropolitan Police Service.[1] The main responsibility of the unit was to provide aerial reconnaissance and other air support operations. Helicopters are particularly useful in aiding searches for missing persons, car pursuits, suspect capture and large public order operations such as football matches. The ASU also supported other emergency services, including the London Fire Brigade, London Ambulance Service and Marine Coastguard.[2] On 31 March 2015 the National Police Air Service took over providing air support to the Metropolitan Police Service (along with all other police forces in England and Wales). This, in effect, resulted in the closure of the Metropolitan Police Air Support Unit.

Not to be confused with Flying Squad.

Metropolitan Police EC 145 helicopter

The Metropolitan Police Service has also reportedly been secretly using Cessna aircraft for a number of years that have been fitted with surveillance equipment capable of intercepting mobile phone calls and listening in on conversations.[3]

Formed in 1980,[2][4] the unit was based at Lippitts Hill, Essex and had 48 personnel comprising 3 sergeants, 18 constables, 4 aircraft engineers, 1 avionics engineer, 11 pilots and was headed by an inspector. The unit also employed other members of staff, including operations room staff and an intelligence officer. The senior management were based at Wapping police station. All pilots were ex-military Royal Navy but also Army Air Corps.[2] Each aircraft was crewed by a pilot with two officers acting as observers, and averaged over 260 flying hours per month.[1][2]

In 1980, the ASU started with Bell 222A helicopters and in 1993 transitioned to AS355N Squirrel helicopters.[2]

In July 2007, the ASU took delivery of three new Eurocopter EC 145s costing a total of £15 million, using the call signs India 97, India 98 and India 99.[2] Each aircraft has an L-3 Wescam MX-15 sensor pod which houses a gyro-stabilized colour "day" camera and a thermal imaging camera with digital video downlink from the helicopter.[2]


In February 2015, it was announced that the control of the Metropolitan Police Air Support Unit was to be transferred to the National Police Air Service (NPAS) on 31 March, and that the base at Lippitts Hill would close in the following year. A projected new base at Elstree was intended to serve Hertfordshire, Bedfordshire, and Essex as well as London.[5] However, by February 2017, a replacement for the Lippitts Hill base had not been procured, and the possibility of using RAF Northolt instead was being investigated.[6]

On 7 September 2017 it was provisionally agreed by Epping Forest District Council to allow the unit to operate 3 helicopters and 1 fixed wing aircraft from North Weald Airfield in Essex, with a 25-year lease.[7]

A former London Metropolitan Police Air Support Unit Bell 222 fitted with a Marconi Heli-Teli in 1982

See also

References
  1. "Metropolitan Police Service - Air Support Unit". Met.police.uk. Retrieved 8 June 2009.
  2. Drweiga, Andrew (March 2013). "A Career Policing London's Skies". Rotor and Wing. Vol. 47 no. 3. Rockville, Maryland, USA: Access Intelligence. p. 54. ISSN 1066-8098. Archived from the original on 18 November 2015.CS1 maint: bot: original URL status unknown (link)
  3. "Met Police spends millions of pounds on secret aircraft". Retrieved 17 May 2012.
  4. "Metropolitan Police Service - History of the Metropolitan Police Service". Met.police.uk. Archived from the original on 3 April 2002. Retrieved 8 June 2009.
  5. Davis, Barnaby (23 February 2015). "Lippitts Hill helicopter base will close next year, it has been announced". East London & West Essex Guardian. Retrieved 1 May 2017.
  6. Elliott, Bryn (March 2017). "Law enforcement - United Kingdom - NAPS" (PDF). Police Aviation News (251): 7. Retrieved 1 May 2017.
  7. "EFDC Cabinet Meeting 7th September, 2017". Epping Forest District Council. 7 September 2017.

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