PROPELLER FOR SHIP, UNDERWATER BLADE FOR UNDERWATER SHIP AND CROSS SECTION PROFILE OF BLADE IN AIR PROPELLER

摘要

PURPOSE: A propeller is provided to have good cavitation in the water with an air propeller by making upward force to resisting force very large. CONSTITUTION: A code directional distribution of a two dimensional blade thickness of a propeller is +/-5% of maximum blade thickness from the blade thickness distribution in a section more than 50% of a code section illustrating thickness distribution. Also the code directional distribution of a two dimensional blade camber is +/-5% of blade camber distribution in a section more than 50% of camber distribution.