A heavy blade propeller is also used in the fly-propyled type, and is also used in the fly-fishing industry.
A single blade propeller is more durable, and has the same weight as a 2- blade propeller. However, the two-blade propeller are durable, and they have a lesser design compared to a 2- blade propeller. In addition, the single-blade propeller is more durable and has a higher top speed.