
The D.1 proved the soundness of Dunne’s ideas and was followed by further machines on the same principle; the D.3 was constructed at Farnborough and later ones built privately at Eastchurch. In addition, both seaplane and flying boat versions of the Dunne biplane were built in America by the Burgess Company. But it gradually became apparent that inherent stability was not so essential for a military aircraft as good manoeuvrability.