French aircraft engine Hispano-Suiza 12Y31. This V12 at 60 degrees was constructed from 1932 to 1944 and used in Dewoitine D520 among number of aircrafts. Power 750 up to 910 hp. Model with materials and animation engine (Alt A) : crankshaft, pistons, camshaft, propeller, etc... are moving.
wow that's awesome!