Gnome Delta

{{Infobox Aircraft Begin

|name= Delta

|image = Gnome Delta - Moteurs Gnome October 1913.png

|caption = Gnome 9 Delta as shown in a 1913 Gnome catalog

}}

{{Infobox Aircraft Engine

|type= Rotary aero engine

|national origin =

|manufacturer= Société des Moteurs Gnome

|first run= c.1909

|major applications=Avro 500
Vickers F.B.9 Gunbus

|number built =

|program cost =

|unit cost =22,000 Francs

|developed from =

|developed into =

|variants with their own articles = Oberursel U.I

}}

The Gnome 9 Delta was a French designed, nine-cylinder, air-cooled rotary aero engine that was produced under license in Britain. Powering several World War I era aircraft types it produced {{cvt|100|hp}} from its capacity of {{convert|16|L|cuin}}.{{cite book|last1=Lumsden|first1=Alec S.C.|title=British piston aero-engines and their aircraft|date=1994|publisher=Airlife Publ.|location=Shrewsbury|isbn=1-85310-294-6|page=152|edition=1. publ. in the UK.}}

Variants

;Delta:The baseline 9-cylinder {{cvt|100|hp}} rotary engine.

;Delta-Delta:An 18-cylinder {{cvt|200|hp}} two-row rotary engine - Two Deltas on a common crankshaft.

Applications

List from Lumsden

Engines on display

Specifications (9 Delta)

File:Gnome Delta-Delta - Moteurs Gnome October 1913.png

{{pistonspecs|

|ref=Lumsden.{{cite book|title=Moteurs Gnome|date=October 1913|publisher=Société des Moteurs Gnome|location=Paris|pages=15–18|url=https://www.museesafran.com/sites/musee/files/journaux/15-livres_espace_patrimoine_moteurs%20gnome_octobre_1913.pdf|accessdate=26 June 2018|language=French|format=PDF}}{{cite book |last1=Angle |first1=Glenn D. |title=Airplane Engine Encyclopedia |url=https://archive.org/details/airplaneenginee00anglgoog |date=1921|publisher=THE OTTERBEIN PRESS|location=Dayton, Ohio|page=[https://archive.org/details/airplaneenginee00anglgoog/page/n221 212]}}

|type=9-cylinder, single-row, rotary engine

|bore={{convert|124|mm|in|abbr=on|2}}

|stroke={{convert|150|mm|in|abbr=on|2}}

|displacement={{convert|16.28|L|cuin|abbr=on|2}}

|length={{convert|1150|mm|in|abbr=on|2}}

|diameter={{convert|1020|mm|in|abbr=on|2}}

|width=

|height=

|weight= {{convert|135|kg|lb|abbr=on|1}}

|valvetrain=Automatic centre-piston inlet valve, one overhead exhaust valve per cylinder.

|supercharger=

|turbocharger=

|fuelsystem=one static Bloctube carburettor feeding the crankcase

|fueltype=40 / 50 Octane gasoline

|oilsystem=Total loss pressure fed

|coolingsystem=Air-cooled

|power=75 kW (100 hp) at 1,200 rpm

|specpower=

|compression=

|fuelcon=

|specfuelcon=362 g/(kW·h) (0.6 lb/(hp·h))

|oilcon=

|power/weight=

|reduction_gear=

}}

See also

{{aircontent

|see also=

|related=

|similar aircraft=

|lists=

|similar engines=

}}

References

{{reflist}}