Bentley BR1

E106685

The Bentley BR1 was a British World War I rotary aircraft engine renowned for its power and reliability in frontline fighters.

All labels observed (2)

Label Occurrences
Bentley BR1 canonical 2
Bentley BR2 1

How this entity was disambiguated

Statements (44)

Predicate Object
instanceOf aircraft engine ⓘ
piston engine ⓘ
rotary engine ⓘ
aircraftApplication Sopwith 1½ Strutter ⓘ
Sopwith Camel ⓘ
Sopwith Snipe (early prototypes) ⓘ
linked to: Sopwith Snipe
bore 5.0 in ⓘ
category World War I aircraft piston engine ⓘ
rotary aircraft engine ⓘ
configuration 9-cylinder rotary ⓘ
coolingSystem air-cooled ⓘ
countryOfOrigin United Kingdom ⓘ
designer W. O. Bentley ⓘ
developedFrom Clerget 9B ⓘ
displacement approximately 25 litres ⓘ
era World War I era ⓘ
firstFlightInServiceAircraft 1917 ⓘ
fuelType aviation gasoline ⓘ
historicalReputation highly reliable in frontline service ⓘ
powerful for its time ⓘ
ignitionSystem dual magnetos ⓘ
lubricationSystem total-loss oil system ⓘ
manufacturer Gwynnes Limited ⓘ
Humber Limited ⓘ
Vickers Limited ⓘ
linked to: Vickers-Armstrongs
materialUsed aluminium pistons ⓘ
steel cylinders ⓘ
namedAfter Bentley (designer W. O. Bentley) ⓘ
linked to: W. O. Bentley
notableFeature improved reliability over contemporary rotary engines ⓘ
reduced use of castor oil compared to earlier rotaries ⓘ
operator Royal Air Force ⓘ
Royal Flying Corps ⓘ
Royal Naval Air Service ⓘ
powerOutput 150 hp ⓘ
approximately 112 kW ⓘ
productionPeriod circa 1917–1918 ⓘ
role fighter aircraft powerplant ⓘ
serviceEntry 1917 ⓘ
status obsolete ⓘ
stroke 7.0 in ⓘ
successor Bentley BR2 ⓘ
linked to: Bentley BR1
usedBy British Empire military aviation ⓘ
usedInConflict World War I ⓘ
valvetrain two valves per cylinder ⓘ

How these facts were elicited

Referenced by (3)

Full triples — surface form annotated when it differs from this entity's canonical label.

Sopwith Camel → typicalEngineModel → Bentley BR1 ⓘ
Bentley BR1 → successor → Bentley BR2 ⓘ
linked to: Bentley BR1
Bentley BR2 → successorTo → Bentley BR1 ⓘ
subject linked to: Bentley BR2 aircraft engine