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Engine – Alvis Leonides Major
| Serial No: | n/a |
| Period: | Post-WWII |
| Reference: | 71/E/804 |
| Museum: | Midlands |
| Location: | Hangar 1 |
| On Display: | Yes |
A 14-cylinder, two-row radial engine, the Leonides Major 755/1. Mk 155, 780hp seen here, is a medium supercharged, de-rated engine. It is an oblique, direct-drive helicopter engine and was used on the Westland Whirlwind HAS 7 and 8 variants.