This Gasparin GMW 73 CO2 motor has a 73.72 cubic mm displacement. The bore is 3.8mm, stroke is 6.5mm, and weight is 16.8 grams (without prop). This engine is Serial No. 273, built 6/7/99. This particular engine is the same as the one that was won by Ed Swenton at the 2000 free flight championships held at Lost Hills, CA. The winner’s plaque accompanies the engine. (This is not the actual engine that was given as a prize, Ed Jr. still has that in his collection, but it is the same model.)
