It was a single-seat, single-engine biplane of mixed construction.
The Firefly was a private-venture design, penned by Marcel Lobelle.
It was first flown on 9 November 1925 by Norman Macmillan.
[1] The Air Ministry did not pursue the project, partly because of the American Curtiss engine used [2] and partly because of its wooden construction [1] and the Firefly I did not enter production.
Data from The Complete Book of Fighters[2]General characteristics Performance Armament