Engine – de Havilland Gipsy Queen 175

This is an inverted air-cooled six-cylinder engine and in general resembles the inverted four-cylinder ones, usually representing developments of the latter type for higher power. Bore 4.72ins, …

Engine – de Havilland Goblin 2

In the race to get a viable engine from Whittle’s design, de Havilland were also asked to develop a gas turbine. Halford, de Havilland’s engine designer, used …

Engine – Junkers Jumo 205

The Junkers Jumo 205 came from the opposed-piston, vertical cylinder, two stroke liquid-cooled pattern. Typical examples of this type of engine were the Jumo 204 (750hp), 205-C …

Engine – Alvis Leonides 128

This post-war derivative of the Alvis 9ARS appeared in numerous sub-variants. The Leonides is a 9-cylinder, air-cooled single-row radial poppet-valve engine. The Leonides 503/7A, Mk 128 01/2, …

Engine – Alvis Leonides Major

A 14-cylinder, two-row radial engine, the Leonides Major 755/1. Mk 155, 780hp seen here, is a medium supercharged, de-rated engine. It is an oblique, direct-drive helicopter engine …

Engine – Anzani 6-Cylinder

It was an Anzani engine which powered the tiny monoplane in which M. Bleriot made the memorable first flight across the English Channel on 25 July 1909. …

Engine – Armstrong Siddeley Mamba

The Mamba has virtually a straight-through air flow system, its diameter (less than 30ins measured over the cowling) is remarkably small and the frontal area only about …