PROPULSION MEANS FOR AIRCRAFT OR BOATS

摘要

The invention relates to a propulsion means or a propeller for aircraft or boats. The radius of the outflow median M2 of the propeller in relation to that of the inflow median M1 is increased such that the loss of momentum is reduced and the envelope (6) is used as an additional surface, generating an additional thrust compared to a conventional propeller in the direction of travel, with a given through-flow mass through the propeller.