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THE "MORE BLADES" THEORY and ARGUMENTS-

Wind turbines experience "PROGRESSIVE LOSS" or Cascade Failure when under heavy loads. This means that the slower the rotor spins under load the MORE likely it is to spin even slower and so on (Cascade Failure) until the blades are moving so slow they can't catch enough wind to be effective anymore because of excessive "Way-Holes". This is why two and three blade systems need a computer to keep the blades rev'd up to speed. The computer removes the load by making fast adjustments and this keeps the blades moving quickly eliminating cascade failure. However a computer become less necessary when you have lots of blades working for you since cascade failure is greatly reduced by having the extra surface area of 6 blades. 3 blades will work just as good as 6 blades IF the design is 100% perfect. Having 6 blades is an EXTREMELY forgiving system for those of you experimenting with using motors as generators!

"Cascade Failure";

The slower a blade spins the more likely it is to spin even slower and so on until it can no longer adequately catch wind as "Way-Holes" form in the propellers diameter matrix area.

 

Way-Holes";

A potential power producing area of a wind turbine propellers diameter that is allowing air to pass through in-between blade strikes.
or - The absence of a wind turbine blade in the winds path at any given point in rotation time usually caused by over-amperage loads including connection to lower voltage batteries used in low wind speed areas or high amperage appliances or lack of blade area in the original turbine design or a mismatched PMA to blade area ratio in the design.

IT ALL BOILS DOWN TO THIS ONE SIMPLE LITTLE QUESTION IN THE END.

The REAL question becomes, WHAT is cheaper. Extra BLADES or COMPUTER controls???

Well, at least in the case of small wind turbines it's a no-brainer,, Extra blades are much cheaper than electronic controls and definitely more dependable too!!! In the final analysis more blades equals super low wind speed start up plus the added benefit's of simplicity and dependability.

 

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