High efficiency ceiling fan

An overhead ceiling fan system for low speed operation at approximately 50 to approximately 200 revolutions per minute(rpm), comprising in combination:

• a ceiling fan motor for being attached to a ceiling;
• and
• ceiling fan blades being attached to the ceiling fan motor, each blade includes:
• a positive twist adjacent to a rotor end of the blade of approximately 25 to approximately 50 degrees;
• a second positive twist adjacent to a tip end of the blade of approximately 5 to approximately 10 degrees, so that the blade pitch increases from the tip end to the rotor end of the blade;
• a chord component having a first width portion of approximately 5 to approximately 11 inches adjacent to the rotor end of the blade, and a second width portion of approximately 2 to approximately 5 inches adjacent to the tip end;
• and
• an airfoil component portion having a first thickness portion of approximately 0.19 to approximately 0.6 inches adjacent to the rotor end of the blade tapering down to a second thickness portion of approximately 0.08 to approximately 0.24 inches adjacent to the tip end, wherein the ceiling fan motor runs at low speed ranges of approximately 50 to approximately 200;
• revolutions per minute(rpm), providing substantial energy savings and increased air flow.

A method for operating an overhead ceiling fan system comprising the steps of:

• (a) rotating fan blades attached to a ceiling fan at a speed range of approximately 50 to approximately 200 revolutions per minute(rpm);
• (b) drawing a power supply of less than approximately 50 Watts;
• and
• (c) generating a downward airflow of up to approximately 6500 CFM from the rotating blades, wherein the ceiling fan system reduces power consumption and enhances axial air flow.