ADC Nimbus
1920s British piston aircraft engine
title: "ADC Nimbus" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["1920s-aircraft-piston-engines", "adc-aircraft-engines"] description: "1920s British piston aircraft engine" topic_path: "general/1920s-aircraft-piston-engines" source: "https://en.wikipedia.org/wiki/ADC_Nimbus" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0
::summary 1920s British piston aircraft engine ::
::data[format=table title="infobox aero engine"]
| Field | Value |
|---|---|
| name | Nimbus |
| engine_type | Liquid-cooled inline piston engine |
| manufacturer | Aircraft Disposal Company |
| national_origin | United Kingdom |
| first_run | 1926 |
| major_applications | Airco DH.9 |
| Vickers Vendace | |
| developed_from | Siddeley Puma |
| :: |
|name = Nimbus |image = |caption = |engine_type=Liquid-cooled inline piston engine |manufacturer=Aircraft Disposal Company |national_origin=United Kingdom |first_run=1926 |major_applications=Airco DH.9 Vickers Vendace |number_built = |developed_from = Siddeley Puma |developed_into = |variants_with_their_own_articles =
The ADC Nimbus was a British inline aero engine that first ran in 1926. The Nimbus was developed from the Siddeley Puma aero engine by Frank Halford of the Aircraft Disposal Company, the goal was to develop the Puma to produce its intended power output which Halford eventually achieved. The Nimbus was further developed into an air-cooled version known as the ADC Airsix which did not enter production and was not flown.
Applications
Specifications (Nimbus)
| and start a new, fully formatted line with -- |type=Six-cylinder, inline, liquid-cooled, upright piston engine |ref= Lumsden |bore=6.0 in (152 mm) |stroke=7.5 in (190 mm) |displacement=1,150.3 cu in (18.85 L) |length=70 in (1,778 mm) |diameter= |width=17.5 in (444 mm) |height=44 in (1,118 mm) |weight=670 lb (304 kg) |valvetrain=1 inlet and 2 exhaust valve per cylinder |supercharger= |turbocharger= |fuelsystem=Carburettor |fueltype=74 octane |oilsystem= |coolingsystem=Air-cooled |power=305 hp (227 kW) at 1,450 rpm (takeoff power) |specpower=0.26 hp/cu in (12 kW/L) |compression=5.4:1 |fuelcon= |specfuelcon= |oilcon= |power/weight= 0.46 hp/lb (0.9 kW/kg)
|designer=Frank Halford |reduction_gear=Direct drive, right hand tractor
|general_other= |components_other= |performance_other=
References
Notes
Bibliography
- Lumsden, Alec. British Piston Engines and their Aircraft. Marlborough, Wiltshire: Airlife Publishing, 2003. .
References
- Lumsden 2003, p. 55.
- Lumsden 2003, p.276.
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