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Armstrong Siddeley Genet

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Armstrong Siddeley Genet

The Armstrong Siddeley Genet was a five-cylinder, air-cooled, radial engine for aircraft use built in the UK, first run in 1926. It developed 80 hp at 2,200 rpm in its final form and was a popular light aircraft powerplant. Following the company tradition with a slight deviation the engine was named after the Genet, a catlike animal of the same order but different family.

Contents

Genet I

Genet I producing 65 hp.

  • Avro 618 Ten
  • Avro Avian prototype
  • Blackburn Bluebird I
  • BFW M.23
  • Cierva autogyros. C.9 and C.10
  • Drzewiecki JD-2
  • Fleet Fawn
  • Junkers A50 Junior
  • Saro Cutty Sark
  • Southern Martlet
  • Westland-Hill Pterodactyl
  • Genet II

    The Genet II produced 80 hp due to an increased compression ratio of 5.25:1.

  • ANEC IV
  • Avro Avian
  • Blackburn Bluebird II
  • Cierva C.19 autogyro
  • Darmstadt D-18
  • de Havilland DH.60 Moth
  • Fairchild 21
  • Klemm Kl 25
  • Nicholas-Beazley NB-8G
  • Parnall Imp
  • Robinson Redwing II
  • Southern Martlet
  • Westland Widgeon
  • Genet IIA

    Also 80 hp and with minor differences to the Mark I.

  • Robinson Redwing II
  • Engines on display

    Two preserved Armstrong Siddeley Genets are on static display at the Shuttleworth Collection, Old Warden, Bedfordshire.

    A preserved Genet is on display at the Australian National Aviation Museum, Moorabbin, Victoria, Australia

    There is a restored Genet at the New England Air Museum, Bradley Int'l Airport, Windsor Locks, CT.

    A Genet is on display at the Aviation Heritage Museum (Western Australia).

    Specifications (Genet I)

    Data from Lumsden.

    General characteristics

  • Type: 5-cylinder single-row radial
  • Bore: 4 in (101.6 mm)
  • Stroke: 4 in (101.6 mm)
  • Displacement: 251.43 cu in (4.1 L)
  • Length: 28.5 in (724 mm)
  • Diameter: 34 in (863.6 mm)
  • Dry weight: 168 lb (76 kg)
  • Components

  • Valvetrain: Overhead poppet valves
  • Cooling system: Air-cooled
  • Reduction gear: Direct drive, Left hand tractor
  • Performance

  • Power output: 65 hp at 1,800 rpm
  • Compression ratio: 5.2:1
  • Power-to-weight ratio: 0.38 hp/lb
  • References

    Armstrong Siddeley Genet Wikipedia