The de Havilland Iris was a British four-cylinder, liquid-cooled, horizontally opposed aero engine. Notable as the first aero engine to be designed by Geoffrey de Havilland it was produced in small numbers between 1909 and 1910 by Iris Cars Ltd of Willesden from which it took its name.
De Havilland Iris
Iris-powered de Havilland Biplane No. 2 or RAF F.E.1
Captain Sir Geoffrey de Havilland, was an English aviation pioneer and aerospace engineer. The aircraft company he founded produced the Mosquito, which has been considered the most versatile warplane ever built, and his Comet was the first jet airliner to go into production.
Painting of de Havilland
Blue plaque, 32 Baron's Court Road, Barons Court, London
de Havilland (far left), with fellow officers of the RFC c1913
Statue at the University of Hertfordshire, Hatfield