Siddeley Puma Aero Engine second Run @ Retrotec 20-04-2016 - YouTube
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Aeroclub 1/72 Siddeley Puma Engine With Two Different Manifolds, E057
The de Havilland / AIRCO DH.9 two seater tractor biplane designed and built by The Aircraft Manufacturing Co. Ltd., Hendon, London, N.W.9. – Engine 250 h.p. Siddeley "Puma". Speed at 10,000ft., 110