The de Havilland Super Sprite, the first liquid-propellant rocket engine to have successfully completed a British Government Type-Approval Test, which was in full production for the Royal Air Force.

The licence built de Havilland Gnome turbine engine was used to power late versions of the Whirlwind helicopter, and two were used in the Wessex helicopter replacing piston engines.

Two de Havilland Gyron Junior axial flow jet engines were used to power the Buccaneer S.1 low level strike aircraft for the Royal Navy. A 10,000 lb thrust version powered the Bristol T.188 stainless steel research aircraft.

The Gyron was designed in 1951 by de Havilland as a private venture supersonic turbojet. The Gyron was first run in a test bed on 5th January 1953. Flight tests began in 1955 in a Short Sperrin under a Ministry of Supply contract. The engine was never put into production, losing out to the Bristol Siddeley/Rolls-Royce Olympus.

The Spectre rocket engine was designed to be the boost engine in a mixed power plant jet interceptor, allowing the aircraft to climb rapidly to high altitude to intercept high flying bombers.

The military version of the de Havilland Ghost was the Mk. 104 used to power the DH112 Venom Fighter-Bomber (FB), the Venom Night-Fighter (NF) and the Sea Venom.

The de Havilland Goblin 35 centrifugal flow jet engine was used to power the two seat DH115 Vampire Trainer used for advanced training in Britain and overseas.

The non-supercharged Gipsy Queen 30 engine was produced specifically for the four engine DH114 Heron.

Four 525 hp de Havilland Gipsy Twelve Series I engines were specifically designed by the English aircraft designed, Major Frank Halford to power the wooden constructed DH91 Albatross airliner, which made its maiden flight on 20th May 1937.

First built in 1932, total production of all Gipsy Major versions was 14,615 units. In Canada the Gipsy Major was the engine of choice for the DHC1 Chipmunk trainer, which later replaced the Tiger Moth in the RAF .