ADC Airdisco

From Wikipedia, the free encyclopedia
Jump to: navigation, search
ADC Airdisco installed in a DH.51.
Type Air-cooled V-8 piston engine
National origin United Kingdom
Manufacturer Aircraft Disposal Company
First run 1925
Major applications de Havilland DH.51
Avro 548
Developed into ADC Cirrus

The ADC Airdisco is a British V-8 aero engine that first ran in 1925.

Design and development[edit]

The 'Airdisco' was developed from the French Renault 70 hp aero engine by Frank Halford of the Aircraft Disposal Company, the main difference being the use of aluminium cylinder heads. Halford later used one bank of cylinders to create the Cirrus engine.[1]



A de Havilland DH.51 owned and operated by the Shuttleworth Collection at Old Warden, Bedfordshire remains airworthy and is powered by an original ADC Airdisco engine.[2]

Specifications (Airdisco)[edit]

Data from Lumsden [3]

General characteristics

  • Type: Inline air-cooled, upright, V-8 piston engine
  • Bore: 4.13 in (105 mm)
  • Stroke: 5.12 in (130 mm)
  • Displacement: 548.94 cu in (9 L)
  • Length: 46 in (1,168 mm)
  • Width: 21.3 in (541 mm)
  • Height: 31.1 in (790 mm)
  • Dry weight: lb ( kg)
  • Designer: Frank Halford


  • Valvetrain: 1 inlet and 1 exhaust valve per cylinder
  • Fuel system: Carburettor
  • Fuel type: 74 octane
  • Cooling system: Air-cooled
  • Reduction gear: 0.5:1, right hand tractor


See also[edit]

Related development
Related lists



  1. ^ Lumsden 2003, p. 55.
  2. ^ Shuttleworth Collection - DH.51 Retrieved: 1 September 2009
  3. ^ Lumsden 2003, p.276.


  • Lumsden, Alec. British Piston Engines and their Aircraft. Marlborough, Wiltshire: Airlife Publishing, 2003. ISBN 1-85310-294-6.

External links[edit]