The "Antares" model developed by J. Angeli in 1930 is an inverted, inline, four-cylinder engine.

"Antarés"

-It is air cooled and has a displacement of 1,270 cc giving 43 CV at 4,400 rpm.

-The weight was minimal for that time (46 Kg) because of using electron.

-Exceptionally it had reducing gear for the propeller with spur gear. Hence the high rate of rotation.