An engine built in 1937 in California. It is an air-cooled, inline, inverted 6-cylinder engine. See Deeble. Sometimes Deeble appears with this composed name.

-The engine used the double-act principle, like the pistons of locomotive steam engines.

-There was combustion on both sides of the piston.

-Due to the rod of the part that transmitted the force to the connecting rod, the effective diameter was smaller in lower part than in the upper part.

-With 300 HP at 2,000 rpm it weighed 417 Kgs. The stroke was 5 inches and the actual diameter of the top 4.5 inches and 4.3 inches in the bottom.

-A Deeble engine flew in a Ryan-ST but it never went on the market.