Around 1940 or 1941 four prototypes of the Mosquito aircraft were built in this hanger in great secrecy. The first completed was dismantled and trucked six or seven miles to the de Havilland factory's airfield in Hatfield, Hertfordshire, and test flown by de Havilland himself. It flew so well that the rest of the prototypes were flown from out of the field in which the hanger stood.

Learn more about the Mosquito and other de Havilland aircraft at:

http://www.dehavillandmuseum.co.uk/index.html