Humber Ltd. (Bentley) B. R. 2, Rotary 9 Engine

Humber Ltd. (Bentley) B. R. 2, Rotary 9 Engine

     

Initially asked in 1914 to study an overheating problem in rotary engines, Captain W. O. Bentley, an established car designer, developed a new and more efficient engine, with a weight-saving effect realized by careful design and the use of aluminum wherever possible. Equally important was the lower cost, as compared to the French Clerget, then widely used in British aircraft; and itself considered an improvement over the earlier Gnome

Following success of the smaller A.R. 1 (Admiral Rotary 1), which was later renamed Model B. R. 1 for Bentley Rotary 1, the larger B. R. 2 rotary aircraft engine powered a variety of World War I aircraft including, among others, the: Sopwith F.1 Camel and 7F.1 Snipe; Nieuport B.N.1; and Vickers F.B.26A Vampire II. This Bentley B.R. 2 was built by Humber Ltd., one of five British companies that manufactured this model during World War I.

Gift of Preston Kirk

Physical Description:
Weight (dry): Approx 227 kg (500 lb)

Country of Origin
United Kingdom

Manufacturer
Humber Ltd. (Coventry, England)
Designer
W. O. Bentley

Date
Circa 1917

Location
National Air and Space Museum, Washington, DC
Exhibition
Legend, Memory and the Great War in the Air

Type
PROPULSION-Reciprocating & Rotary

Dimensions
Diameter 106.7 cm (42.0 in.), Length 61.8 cm (24.3 in.)

Initially asked in 1914 to study an overheating problem in rotary engines, Captain W. O. Bentley, an established car designer, developed a new and more efficient engine, with a weight-saving effect realized by careful design and the use of aluminum wherever possible. Equally important was the lower cost, as compared to the French Clerget, then widely used in British aircraft; and itself considered an improvement over the earlier Gnome

Following success of the smaller A.R. 1 (Admiral Rotary 1), which was later renamed Model B. R. 1 for Bentley Rotary 1, the larger B. R. 2 rotary aircraft engine powered a variety of World War I aircraft including, among others, the: Sopwith F.1 Camel and 7F.1 Snipe; Nieuport B.N.1; and Vickers F.B.26A Vampire II. This Bentley B.R. 2 was built by Humber Ltd., one of five British companies that manufactured this model during World War I.

Gift of Preston Kirk

Physical Description:
Weight (dry): Approx 227 kg (500 lb)

Country of Origin
United Kingdom

Manufacturer
Humber Ltd. (Coventry, England)
Designer
W. O. Bentley

Date
Circa 1917

Location
National Air and Space Museum, Washington, DC
Exhibition
Legend, Memory and the Great War in the Air

Type
PROPULSION-Reciprocating & Rotary

Dimensions
Diameter 106.7 cm (42.0 in.), Length 61.8 cm (24.3 in.)

ID: A19570999000