Propeller

A propeller for use with fluids, the propeller provided to propel an object or person or to move the fluid, the propeller comprising:

• a plurality of blades;
• a means for generating non-axial lift and non-axial fluid flow;
• a means for redirecting the non-axial fluid flow to axial fluid flow;
• a rotational axis coincident with a hub;
• the plurality of blades extending radially outward from the rotational axis and disposed around the rotational axis;
• each blade forming a loop and having an intake portion, an exhaust portion and a tip portion extending radially outward from the rotational axis;
• wherein the means for generating non-axial lift and non-axial fluid flow is the blades being configured wherein in a cross-sectional profile taken perpendicularly from the rotational axis through the tip portion of each of the plurality of blades, the distance from the rotational axis to the leading edge of the blade is greater than the distance from the rotational axis to the trailing edge of the blade in at least part of the tip portion, each of the plurality of blades has a roll value of 40 degrees to 50 degrees at a transition point from the intake portion to the tip portion, wherein the transition point occurs where the amount of non-axial lift produced by a given parameter section is greater that the axial lift produced;
• and
• wherein the means for redirecting the non-axial fluid flow to axial fluid flow includes a vertical angle between −45 degrees and 45 degrees throughout the blade.