Hi PH 
The P-45 Gnome by Michael Ward (G-AXEI). I think it has the distinction of being the smallest UK manned aircraft flown. The thing behind the propeller is a 10-14hp Douglas 2-cilinder motorcycle engine. G-AXEI first flew 4 Augusty 1967. Later to museum and AFAIK now in the collection of Real Aeroplane Company in E.Yorkshire.
Seems a second example was never completed and this is now in the Newark Air Museum.

The P-45 Gnome by Michael Ward (G-AXEI). I think it has the distinction of being the smallest UK manned aircraft flown. The thing behind the propeller is a 10-14hp Douglas 2-cilinder motorcycle engine. G-AXEI first flew 4 Augusty 1967. Later to museum and AFAIK now in the collection of Real Aeroplane Company in E.Yorkshire.
Seems a second example was never completed and this is now in the Newark Air Museum.