Moorabbin Air Museum
  • Home
  • ABOUT
    • News
    • History
  • Community Engagement
    • Legends of The Skies
  • Birthdays & Functions
  • Our Collection
    • CATEGORIES >
      • ENGINES
      • COMMONWEALTH AIRCRAFT CORPORATION
      • D.A.P / G.A.F.
      • R.A.A.F. / R.A.N. / ARMY
      • COMMERCIAL AIRCRAFT
      • KIT AIRCRAFT
      • OTHER AIRCRAFT
      • GLIDERS
  • membership
  • ONLINE SHOP
  • Support the Museum
    • Donations
    • EMPLOYEE GIVING
    • Our Supporters
  • Getting There
  • Contact

ARMSTRONG SIDDELEY CHEETAH IX

Picture

The Armstrong Siddeley Cheetah series of aircraft engines were British designed in 1930 and produced from 1935 until 1948 when fifteen variants totalling 37,200 units had been built.
They were seven cylinder supercharged air cooled radial engines, that demonstrated dependable reliability that culminated in the RAF certificating it as the first engine to run for 1,200 hours between overhauls. 

The Cheetah engine series were used extensively to power training aircraft pre, and during WW2, and also powered the Avro Anson, an operational reconnaissance / bomber aircraft in early WW2, and later went on to be used as a twin engine  training machine in the Empire Air Training Scheme (EATS) during the war years.
The RAAF operated 1,028 Avro Ansons  between 1936 and 1944, 937 of them were used in the EATS between 1940 and 1944, and were powered by the Cheetah 1X engines. The Avro Anson was Britain's first twin engined aircraft with a retractable undercarriage (manually operated by 130 odd turns of a large handle). In addition 391 Airspeed Oxfords, dedicated twin engine training aircraft, were imported into Australia for use in the EATS and were powered by Cheetah X engines.


TECHNICAL DATA - Cheetah 1X
Cylinders
Bore and Stroke
​Displacement
Length 
Diameter
​Dry weight
​Valve system
Supercharger
​Fuel system​
Maximum Power
​Power to weight ratio






7 cylinder supercharged, air-cooled radial direct drive engine
5.25in (133mm)   and 5.5in (140mm)  
834 cu in (13.65 L)
52.8in (1,342mm)
​47.6in (1,210mm)
637lbs (289kg)
​1 Inlet and 1 exhaust popet valve per cylinder
centrifugal, 5.4/1 reduction
​Claudel-Hobson carburettor
Take off - 338hp @2,100rpm at sea level and 345hp @2,425rpm at 8,000ft (2,400m)
​0.54hp/lb





RETURN TO MENU
 © 2023 Australian Aircraft Restoration Group. All Rights Reserved. ABN 61 005 125 244
  • Home
  • ABOUT
    • News
    • History
  • Community Engagement
    • Legends of The Skies
  • Birthdays & Functions
  • Our Collection
    • CATEGORIES >
      • ENGINES
      • COMMONWEALTH AIRCRAFT CORPORATION
      • D.A.P / G.A.F.
      • R.A.A.F. / R.A.N. / ARMY
      • COMMERCIAL AIRCRAFT
      • KIT AIRCRAFT
      • OTHER AIRCRAFT
      • GLIDERS
  • membership
  • ONLINE SHOP
  • Support the Museum
    • Donations
    • EMPLOYEE GIVING
    • Our Supporters
  • Getting There
  • Contact