ABC Gnat
title: "ABC Gnat" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["1910s-aircraft-piston-engines", "abc-aircraft-engines"] topic_path: "general/1910s-aircraft-piston-engines" source: "https://en.wikipedia.org/wiki/ABC_Gnat" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0
::data[format=table title="infobox aero engine"]
| Field | Value |
|---|---|
| name | Gnat |
| engine_type | Flat-twin aero engine |
| national_origin | United Kingdom |
| manufacturer | ABC Motors Limited |
| designer | Granville Bradshaw |
| first_run | 1916 |
| number_built | 17 |
| :: |
|name = Gnat |image = |caption = |engine_type = Flat-twin aero engine |national_origin = United Kingdom |manufacturer = ABC Motors Limited |designer = Granville Bradshaw |first_run =1916 |major_applications = |produced = |number_built = 17 |developed_from = |variants_with_their_own_articles =
The ABC Gnat was a 45 hp (34 kW) two-cylinder aero engine designed by British engineer Granville Bradshaw for use in light aircraft. The Gnat was built by ABC Motors, first running in 1916, production ceased in December 1918. 17 engines were built from an original order of 18.
Applications
- BAT Crow
- Blackburn Sidecar
- Eastchurch Kitten
- Grain Kitten
- Loening M-2 Kitten
- Macchi M.16G
- Royal Flying Corps ‘Aerial Target’
- Sopwith Sparrow
- Sopwith Tadpole
Specifications (Gnat I)
|ref=Lumsden |type=2-cylinder air-cooled flat-twin |bore=4.33 in (110 mm) |stroke=4.72 in (120 mm) |displacement=139.06 cu in (2.28 L) |length= |diameter= |width= |height= |weight=115 lb (52 kg) |valvetrain= Overhead valve, two valves per cylinder |supercharger= |turbocharger= |fuelsystem= Single A.B.C. carburettor |fueltype=Petrol (40-50 Octane rating) |oilsystem= |coolingsystem=Air-cooled |power=45 hp (34 kW) at 1,920 rpm (takeoff power) |specpower=0.32 hp/cu in (14.9 kW/L) |compression=3.8:1 |fuelcon= |specfuelcon= |oilcon= |power/weight= 0.4 hp/lb (0.6 kW/kg)
References
Notes
Bibliography
- Lumsden, Alec. British Piston Engines and their Aircraft. Marlborough, Wiltshire: Airlife Publishing, 2003. .
References
- Lumsden 2003, p.51.
- Professor A. M. Low FLIGHT, 3 October, 1952 page 436 “The First Guided Missile”
- Lumsden 2003, p.276.
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