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The Armstrong Siddeley Mongoose is a British five-cylinder radial aero engine produced by Armstrong Siddeley. Developed in the mid-1920s it was used in the Hawker Tomtit trainer and Parnall Peto seaplane amongst others. With a displacement of 540 cubic inches (9 litres) the Mongoose had a maximum power output of 155 horsepower (115 kilowatts).

Mongoose
Armstrong Siddeley Mongoose fitted to the Shuttleworth Collection's airworthy Hawker Tomtit
Type Radial engine
National origin United Kingdom
Manufacturer Armstrong Siddeley
First run 1926
Major applications Hawker Tomtit
Avro 504N
Developed into Armstrong Siddeley Serval

A Mongoose engine powers the sole remaining airworthy Hawker Tomtit, based at Old Warden.


Design and development


The Mongoose is a five-cylinder, single-row, air-cooled radial piston engine. The engine features twin forward-mounted ignition magnetos and enclosed valve rockers, the cylinders being the same as those used for the earlier Jaguar engine.[1] An unusual feature of the Mongoose is the vertical position of the lower cylinder, a design thought likely to promote oil fouling of the spark plugs.[2]

Built in several variants, power output ranged between 135 and 155 hp (100-115 kW).


Variants


Mongoose I
1926, 135 hp.
Mongoose II
1930, 155 hp.
Mongoose III
1929.
Mongoose IIIA
1929, civil use.
Mongoose IIIC
1929, Military use based on IIIA.

Applications


Mongoose-powered Hawker Tomtit
Mongoose-powered Hawker Tomtit

Note:[3]


Survivors


An Armstrong Siddeley Mongoose IIIC powers the sole remaining airworthy Hawker Tomtit, K1786/G-AFTA, owned and operated by the Shuttleworth Collection this aircraft flies regularly throughout the summer months.[4]


Specifications (Mongoose I)


Data from Lumsden.[2][5]

General characteristics

Components

Performance


See also


Related development

Comparable engines

Related lists


References



Notes


  1. Gunston 1989, p. 18.
  2. Lumsden 2003, p. 69.
  3. List from Lumsden
  4. The Shuttleworth Collection - Hawker Tomtit Retrieved: 22 February 2012
  5. Lumsden 2003, Part 4.

Bibliography





На других языках


[de] Armstrong Siddeley Mongoose

Der Armstrong Siddeley Mongoose ist ein Flugmotor, den der britische Hersteller Armstrong Siddeley ab 1926 baute. Der 5-Zylinder-Sternmotor hat einen Hubraum von 8849 cm³ und leistet maximal 155 bhp (115 kW). Unter anderem wurde der Motor im Schulflugzeug Hawker Tomtit und im Wasserflugzeug Parnall Peto eingesetzt.
- [en] Armstrong Siddeley Mongoose

[it] Armstrong Siddeley Mongoose

Il Armstrong Siddeley Mongoose era un motore aeronautico radiale 5 cilindri raffreddato ad aria, prodotto dall'azienda britannica Armstrong Siddeley nella seconda parte degli anni venti.

[ru] Armstrong Siddeley Mongoose

Armstrong Siddeley Mongoose — британский поршневой пятицилиндровый авиадвигатель воздушного охлаждения, разработанный в 1926 году.



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