In 1936, Mr. Boitel (Aquiles F. Boitel) created in his facilities an engine for light aircraft, based on information from the Hungarian Sklenar (see).

"Boitel-Soleil"

-With 5 radial cylinders, its power was between 50 and 70 hp at 1,900 rpm.

"Boitel-Soleil, frontal"

"Boitel-Soleil, lateral"

-There was a Botali Diesel 8-cylinder that gave 118 hp at 2,000 rpm in 1937.