The Carbon fiber Marine Propeller is current under development at Fiberdyne with several US. patents pending, Utilizing a restricted Military grade Carbon fiber for the inner structure and a typical appearance grade 2x2 3k twill outer face ply for display units. With our Patent pending quick release blade change can easily be completed in minutes instead of hours’ change the complete set of blades or just on damaged blade, the leading edge is 316L stainless steel.