Potez 6D


The Potez 6D is a French six cylinder inverted inline aircraft engine put into production after World War II in normal and supercharged versions. Unsupercharged, it produced a take-off power of at 2,530 rpm.

Design and development

In the 1930s Potez planned a series of new engines to replace their Anzani-derived radial engines. The Potez 4D, a four-cylinder inverted inline engine ran before World War II but did not reach production until the late 1940s, when it was joined by another inverted inline, the six cylinder 6D, and an eight-cylinder inverted-V, the Potez 8D. The D-series engines had much in common, most obviously sharing pistons and cylinders, with the same stroke, bore and valve gear. The inlines also shared connecting rods and lubrication systems and were offered in normally aspirated or supercharged versions.

Variants

Data from Jane's All the World's aircraft 1956-57 pp. 430–1
;6D-00:
;6D-02: Similar to 6D-30A without supercharger and 2x Hobson A1.55/j downdraught carburettors - at 2,530 rpm
;6D-30A: Supercharged version with a centrifugal blower mounted horizontally on top of engine and with fuel injection, giving a normal power of with for take-off.
;6D-30B: Supercharger drive ratio 15.5:1, for take-off at 2,400 rpm.

Applications