. . . . . "Ava"@en . . "400"^^ . . . "1113333747"^^ . . "53251710"^^ . . . . . . "Air-cooled flat-four, two-stroke"@en . . "Ava 4A"@en . "over propeller boss"@en . "Flat-four, air-cooled two-stroke"@en . . . . . . "Continuous at 2,300 rpm, maximum at 2.500 rpm"@en . "The Ava 4A was a low power flat-four (boxer engine) developed for very light aircraft in France in the 1930s. It was used by several prototypes and at least one production series."@en . . . "34560.0"^^ . . "4967"^^ . . "The Ava 4A was a low power flat-four (boxer engine) developed for very light aircraft in France in the 1930s. It was used by several prototypes and at least one production series."@en . . . . . . . . . "Amrac carburettor, rotary inlet distribution valve. One plug per cylinder, two magnetos, each firing two plugs."@en . . "including mounting and propeller boss."@en . . . . . . . "Opposing cylinders offset. Cast iron cylinders with finned, hemispherical alloy heads. Single piece nitrided steel crankshaft with roller bearings and ball thrust bearing. Light alloy crankcase."@en . . . . . . "air"@en . . .