The engine of the 1909 Cluzan biplane was a Rolan Pilain water-cooled, inline four-cylinder.
-It is difficult to distinguish the biplane in the illustration, due to the distance. but behind the pilot there are the radiator and the engine.
“Cluzan biplane with Rolan Pilain engine” (PiP-fmr)
Motores de ROLAN PILAIN
Model: 4 cyl. inline
Bore / Stroke: x