Mercury VIII Aircraft Engine

Photograph of Mercury aircraft engine

Wikipedia Commons

The Bristol Mercury VIII was an air-cooled radial aircraft engine with nine cylinders. It was rated at 840 hp (626 kW). Derived from the Jupiter, it had a bore of 5.75 inches (146mm) and stroke of 6.5 inches (165mm). The relatively short stroke reduced the engine diameter significantly from the Jupiter.

Aircraft using this engine included the Blenheim.

Gunston (2006)

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