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| R-1690 Hornet | |
|---|---|
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| Pratt & Whitney Hornet, at the Deutsches Museum, Munich. | |
| Type | Radial engine |
| National origin | United States |
| Manufacturer | Pratt & Whitney |
| First run | June 1926 |
| Major applications | Boeing 80 Lockheed Lodestar Sikorsky S-42 Vought O2U Corsair |
| Number built | 2,944 |
| Developed into | Pratt & Whitney R-1860 BMW 132 Mitsubishi Kinsei |
The Pratt & Whitney R-1690 Hornet was a widely used American aircraft engine. Developed by Pratt & Whitney, 2,944 were produced from 1926 through 1942.[1] It first flew in 1927. It was a single-row, 9-cylinder air-cooled radial design. Displacement was 1,690 cubic inches (27.7 L). It was built under license in Italy as the Fiat A.59. In Germany, the BMW 132 was a developed version of this engine. The R-1860 Hornet B was an enlarged version produced from 1929.
Data from [3]
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