The DH.4 was produced in prototype form by the Aircraft Manufacturing Co of Hendon in 1916, this aircraft (3696) making its first flight in mid August 1916 at Hendon, and was unusual in having dual controls.

The DH.84 Dragon was introduced to the de Havilland range of light aircraft in 1933, the prototype (E9 - c/n 6000 – later G-ACAN) having flown for the first time on 12 November 1932, later going to Hillman Airways Ltd as Maylands. Designed by A E Hagg, it was a