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