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Specifications:

  • These blades are engineering perfection!
  • Narrowing twisted blades are the BEST!
  • Strong composite fiber construction.
  • Very resistant to ultraviolet light!
  • Will not ever crack or degrade. Lifetime guarantee
  • Extremely efficient!
  • Clockwise rotation (When standing up-wind from turbine)
  • 17mm hub center fits most older GM/si type alternators.
  • Mounting holes are .245" with .930" hole center spacing.

These blade kits also bolt right on to our the Hornet PMA Hubs

Good for 4.7 MPH winds and above

The new blade on top of page photo, is a new design, will give more power,

and is 28inch long, very good quality,

Photo of hornet blade next to the Air-x shows the size of both, the hornet blade is much bigger,

will give more power

 

The ODD EVEN Blade Count - A True Story! ©
Way back in the "good-old-days" about 80 years ago when wind for electrical
power first got its start as 36 volt battery powered lighting for OFF-GRID
"Kansas Farm Homes" there was TWO blade designs and THREE blade
designs competing.That is where the whole argument originally started.
The proponents of THREE BLADES claimed that "3 blades behaves more
like a round wheel" So today this notion of an ODD number has been totally
perverted for PROFITEERING sake $$$
¬ All propellers with 3 blades or more are behaving "more like a round wheel"
anyhow! The argument that 10 blades gives any less of a "round wheel
effect" than say 9 or 11 blades is pure "SALESMANSHIP" and bunk!Take a look way back in the history books and you will find scores of
writing on the ODD/EVEN subject from the 2 blade and 3 blade proponent
folks. Turbines with 3, 4, 5, 6, 7, 8, 9, 10, 11 and 12 blades are ALL
"behaving more like round wheels" already. More importantly is the
blades are ALL the same weight!!! Ask the pilot of any 2 bladed
helicopter, they work fine also as long as the blades are similar to the
same weight each. I hope this helps stop all the confusion.
¬ Point of interest: If you DO have a propeller with an EVEN number
of blades and one blade happens to break you can always keep it
working 'in-a-pinch' by removing the blade on the opposite side.
Whalaa! It works again and the balance is perfect!
You can't do this if your blades are in ODD numbers due to horrible vibration.

Our wind turbine blades are very strong and will withstand the highest winds they are well balanced and all equal and make little noise when using 8 to 12 blade sytems

Dec 2011 and January 2012 we had over 100 mph winds in the UK and all my turbines still stand unbroken now thatís some wind force thatís hit them hard.

If a blade should happened to break itís because we donít make them from steel or thick wood or big lumps of white fibreglass

If a flying object like a branch from a rotten tree should hit your wind turbine then its better for the blade to break to avoid further damage to your wind turbine hub or PMA

Blades are much cheaper to replace,

If you have made your own heavy steel or wood blades or bought from a dealer claiming they are the strongest then they wonít be the safest

I have used and made many types of wind fan blades I used to make heavy duty alloy but problem is when one bends they become out of balance and can shake the turbine violently in high wind making it much more dangerous.

Also thick tip blades make more noise unless they are made for very low rpm.

I have also tried wood but too heavy and they make big noise like helicopter in high wind and are very hard to make all the same,

And if one came off  I would not like to be hit by one as they weigh a good few kgs.

Thatís why the black or mean green are the choice of blades, they are light and strong and if one should happen to came off it would not go thru roofs of windows at high speed because it would loose momentum as soon as it broke off it would disperse without causing damage because of the lighter weight.

see animation at the bottom

Turbines should be mounted a minimum of 35ft from ground and fitted with green or black  to our Hornets then you can make 1400watts in high wind.

If you want more power You can make a small and safe wind farm that is easy to maintain.

Safety facts you should consider when fitting wind turbines:

-Protect your system with fuse of the proper rating fast blow will protect PMA burn outs.

-Fit our green or black blades for high rpm.

-If batteryís charging then fit a dump load relay.

-Make tower strong to withstand high winds also make it fold down for maintenance.

-Fit at least 3 guy wires one with hand operated winch.

Fit a ground earth lead

-Use quality multi-strand AC or DC cable.

Use quality deep cycle batteryís or good grid inverters

After fitting the wind turbine let system run in for a week or 2 then check all bolts tower and cable connections

 

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