5-blade ground adjustable pitch carbon propellers are suitable for engines from 30 hp till 70 hp. Available diameters are 135, 145, 155 and 165 cm. The weight of the propeller depends on the quantity and on the diameter of blades. The weight of one blade is 300-400 gr (depending on its diameter). The weight of hub is 2000 gr. The hub is made of aerospace aluminium alloy 7075 T6 and is cut in mass using CNC router.