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Bristol Hercules
The
Bristol Hercules
was a 14-cylinder two-row
radial
aircraft engine
designed by Sir
Roy Fedden
and produced by the
Bristol Engine Company
starting in 1939. It was the first of their single
sleeve valve
(Burt-McCollum, or
Argyll
, type) designs to see widespread use, powering many
aircraft
in the mid-
World War II
time frame.
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