Plan for biplane design drawn by John R. Duigan in preparation to construct the aircrraft which he first flew on the family property 'Spring Plains' at Mia Mia, near Heathcote, central Victoria, in July 1910.

The drawing shows a side elevation of the aircraft in its final form as it had evolved by October 1910 at the top and a plan view of the aircraft below in slightly earlier form including the fixed foreplane between the main wings and front elevator, both drawn to a scale of 1 inch = 3 feet (1:36).

More Information