Walter Gemma
1930s Czech piston aircraft engine
title: "Walter Gemma" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["walter-aircraft-engines", "1930s-aircraft-piston-engines", "aircraft-air-cooled-radial-piston-engines"] description: "1930s Czech piston aircraft engine" topic_path: "general/walter-aircraft-engines" source: "https://en.wikipedia.org/wiki/Walter_Gemma" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0
::summary 1930s Czech piston aircraft engine ::
::data[format=table title="infobox aero engine"]
| Field | Value |
|---|---|
| name | Gemma |
| image | File:Walter Gemma I.JPG |
| caption | Walter Gemma on display at the Finnish Aviation Museum |
| engine_type | Radial aero engine |
| national_origin | Czechoslovakia |
| manufacturer | Walter Aircraft Engines |
| first_run | |
| :: |
|name= Gemma |image = File:Walter Gemma I.JPG |caption = Walter Gemma on display at the Finnish Aviation Museum |engine_type= Radial aero engine |national_origin = Czechoslovakia |manufacturer= Walter Aircraft Engines |first_run= |major_applications= |number_built = |developed_from = |developed_into = |variants_with_their_own_articles =
The Walter Gemma was a Czechoslovak nine-cylinder, air-cooled, radial aero engine that was developed and manufactured in the early 1930s by Walter Aircraft Engines.
Applications
Engines on display
A preserved example of the Walter Gemma engine is on display at the following museum:
Specifications
| and start a new, fully-formatted line with -- |ref=Flight. |type=9-cylinder radial piston engine |bore=105 mm |stroke=120 mm |displacement=9.35 L |length= |diameter= |width= |height= |weight= |valvetrain=One intake and one exhaust valve per cylinder |supercharger= |turbocharger= |fuelsystem=Zenith carburettor |fueltype=Petrol |oilsystem= |coolingsystem=Air-cooled |power=123 kW |specpower= |compression= |fuelcon= |specfuelcon= |oilcon= |power/weight=
References
;Notes ;Bibliography
- Gunston, Bill. World Encyclopedia of Aero Engines. Cambridge, England. Patrick Stephens Limited, 1989.
References
- [http://www.flightglobal.com/pdfarchive/view/1937/1937%20-%203110.html ''Flight'' - 11 November 1937] Retrieved: 13 July 2012
- [http://www.flightglobal.com/pdfarchive/view/1934/1934%20-%201252.html ''Flight'' - 22 November 1934] Retrieved: 13 July 2012
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