The consortium is also partway to achieving its affordability goal. According to its calculations, metallic propellers would be cheaper than composites if less than 30 are purchased, but composites have the advantage if that number is over 50.
The consortium would like to build another prototype so it could replace both metallic propellers on the Le Palais with composite propellers and better measure the reduction in cavitation. It also hopes to build a 13-foot diameter propeller and perhaps design a composite crankshaft that would further improve efficiency. Bourcier adds that future development of the propeller will depend on the funding that the consortium is able to secure.