The COMPROP can handle up to 200hp (outboard or stern drive) aboard boats as big as 21′ and/or 3,000 pounds. Our 19’10″ bowrider test boat, with its 180-hp MerCruiser 4.3LX V-6 engine and an Alpha One outdrive, fit those parameters easily.
COMPROP has a 13 1/2″ diameter, and it’s offered with 18″, 20″ and 22″ pitch. Composite Marine Propellers, which manufactures the COMPROP, says changing from three blades to four smaller blades spreads the load out over more area, eliminating the excessive blade flexing that hampered the performance of earlier models. CMP says the COMPROP blades now flex about as much as an aluminum prop’s blades.