| RAF 1 | |
|---|---|
| RAF 1a at the National Museum of the United States Air Force | |
| Type | Piston V8 aero engine |
| Manufacturer | Royal Aircraft Factory |
| First run | 1913 |
| Major applications | Royal Aircraft Factory B.E.2 Airco DH.6 |
| Developed from | Renault 70/80 hp |
The RAF 1 was a British air-cooled, V-8 engine developed for aircraft use during World War I. Based on a French design it was designed by the Royal Aircraft Factory but built by six different British companies including Daimler, Rolls-Royce and the Wolseley Motor Company.
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The RAF 1 was based on the Renault 70/80 hp engine, being intended specifically to replace that engine in the B.E.2c. It featured larger cylinders (3.9 × 5.5 in (99 × 140 mm)) for a total displacement of 540 cubic inches (8.8 L). It was rated at 92 hp (70 kW) at 1,600 rpm. The heads were cast integrally with the cylinders, but the intake and exhaust valves were set into a detachable section. In late 1915, the bore was increased to 4.1 inches (100 mm) leading to an increased displacement of 590 cubic inches (9.7 L) and power of 86 kW (115 hp) at 1,800 rpm. [1]
In late 1915 a supercharged experimental version of the RAF 1a was developed, the engine being flown in a B.E.2c improving the climb from taking 36 minutes to reach 8,500ft without the supercharger, to reaching 11,500ft in the same time.[2]
List from Lumsden[1]
Data from Lumsden[1]
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