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Engine – Alvis Leonides 128

This post-war derivative of the Alvis 9ARS appeared in numerous sub-variants. The Leonides is a 9-cylinder, air-cooled single-row radial poppet-valve engine.

The Leonides 503/7A, Mk 128 01/2, 540/560hp, on display was used to power the Percival P.66 Pembroke C1 and the Scottish Aviation Pioneer CC1.