The Alvis Leonides is a British air-cooled nine-cylinder radial aero engine first developed by Alvis Car and Engineering Company in 1936.
Alvis Leonides on display at the East Midlands Aeropark
Leonides 173 as fitted to the Bristol Sycamore
Alvis Leonides radial engine preserved at the Midland Air Museum
The Percival P.56 Provost is a basic trainer aircraft that was designed and manufactured by British aviation company Percival.
A Percival Provost T.1 preserved as part of The Shuttleworth Collection.
Operational Provost T.1 of the RAF Central Air Traffic Control School in 1967
Provost T.53 of the Irish Air Corps at Baldonnel airfield Ireland in 1967
Privately owned Percival Provost P.56 T1 in 2007