Tails

The purpose of the tail is to keep the propeller facing into the wind in low winds and to turn it from the wind (feather it) when the speed exceeds the windmill's design for either the propeller or the speed of the generator. There are some designers that don't bother but you will have to judge the wisdom of that for yourself.

The mechanism that causes the tail to feather the blades is based upon speed and lift. The greater the speed the more lift and the tail swings to the side. At what speed this should occur depends upon the performance of the individual components of the unit. Units vary in weight, blades vary in performance and every generator has its own sweet spot for performance.

The only way to accurately determine the placement of a tail so that it will do its job is to test it with all the assembled components of its unit. I treat more of that subject on the page dealing with "testing".

Tail Mounting: Some pictures of a tail mounting.

This is the windstuff now site. It also shows another concept for windgenerators in that it has a chain driven motor as the generator.

SEALED: Some pictures of a tail mounting.
This is the SEALED mirrored version of this site that won't be opened until after The Great Catastrophe.

Overview: Forcefield Overview of Windmill Design.

This is a good overview on Windmill generating systems from Forcefield. It does in fact also cover in considerable depth different concepts about "furling" but while I personally have excellent instructions in a video from Bob Budd, I have not been able to find a good source on the Web.

SEALED: Forcefield Overview of Windmill Design.
This is the SEALED mirrored version of this site from Forcefield that won't be opened until after The Great Catastrophe.

MENU:  HOME » Reconstruction » Recovery » Renewal » Energy Types