"jeannette" wrote in message
...
On 30 Mar 2005 15:22:25 -0800, "GeoffSchultz"
wrote:

I recently had to replace 2 of the blades on my KISS wind generator due
to small cracks which I found near the mounting holes. The blades were
replaced with spares purchased at the same time that the generator was
purchased. One of the replacement blades weighs a lot more than the
other blades and none of the blades weighs the same, even in the
complete spare set. This is causing a lot of vibration.

KISS supplies a lead tape to place along the back side of the blades to
balance them. I made a scale to balance the blades such that they all
weighed the same. One blade ended up with 4" of tape, another with 12"
and one with 18". Even though they weighed the same, it was even worse
than before.

So, does anyone have any ideas how to determine who to determine where
the tape needs to be placed?

-- Geoff

P.S. I'll be out of Internet access for a few days.

If you have 3 blades I would imagine that one of the blades should not
require any tape. You should only need to match the 2 remaining blades
to the heaviest blade. Am I wrong here???
So it would seem that you could start by removing the 4" piece from
the one blade (heaviest one) and then cutting off 4" from each of the
other 2.

In any case, it would appear that they put the tape on the edge:
http://www.kissenergy.com/TechnicalDescription.html



Jeannette
aa6jh
Bristol 32, San Francisco
http://www.eblw.com/contepartiro/contepartiro.html

The blades come with the lead tape already installed. About 8" or
so along the leading edge at the root. To balance mine I removed about 1/16"
at a time until it was balanced.

Doug, k3qt
s/v Callista