Denver CO.
USA
In 1911 the Imperial Airplane Society built two models of aero engine;
35-70hp various 6-cyl rotary air-cooled engines,
100hp 12-cyl air-cooled rotary.
Denver CO.
USA
In 1911 the Imperial Airplane Society built two models of aero engine;
35-70hp various 6-cyl rotary air-cooled engines,
100hp 12-cyl air-cooled rotary.