The tail of a wind generator is necessary to maintain the blade assembly oriented with the prevailing wind direction.

After some experimentation, we have found that a tail length about 2 to 3 feet is quite adequate.

The tail can be made from any sturdy metal. We often have used the metal from old washing machines or electric stoves with success.

Just drill a couple holes in the tail assembly pipe and connect the tail. Remember the tail should be about 1 square foot of material at least.

The Pilot Vane (recommended over tip up method)

Another great way to achieve safe results in severe weather is by using a pilot vane. This is very similar to the tail of your homemade wind generator. The only difference is that it is mounted on the side of the body, ahead of the tail. It must be located at 90 degrees or right angles to the tail.

The pilot vane should be between 50 and 70 percent of the total area of the tail. If for example your tail is 2 square feet, then your pilot vane would be between 1 and 1.4 square feet.

The object of mounting a pilot vane is that, in severe weather, it turns your homemade wind generator assembly away from the prevailing wind. Thus, your wind blades are not catching the full force of the wind which increases dramatically as wind speed increases. You want to preserve your wind generator blades in gale force winds. A tilt-up and a pilot vane are a great way to do this.

In our next post: How to Make a Charge Controller.

Want the full scoop on how to build a wind generator? Check this site: www.fuel-water-energy.com/windgenerator.html