It is quite affordable, taking into account individual design, solid wood grades, fiberglass pasting and protection of the front edges with stainless steel (on this propeller, the steel is painted over).
The Americans put our 3-and 4-blade propellers on their planes with 300 HP engines and even win competitions on them. But these are risky actions and I do not support them. We are not yet engaged in propellers for engines of this power (except for the case of manufacturing a 4-blade wooden...