The Walter Pollux is a Czechoslovakian nine-cylinder, air-cooled, radial engine, built by Walter Aircraft Engines for powering light aircraft and that first ran in 1936. The engine produces at 1,800 rpm.[1]
The first known use was on the Fieseler F 2 Tiger in 1934.[2]
A preserved example of the Walter Pollux engine is on display at the following museum: