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[Tvoivozhd <tvoivozd AT infionline.net>]

This is stuff I ran across in a futile attempt to find information on a 
counter-balanced tip-up windturbine pole, which doesn't need a blade 
brake, old Jacobs pitch-control  etc. to limit rpm's in a high 
wind---the tip-up lays over in a high  wind, the amount dictated by the 
counterbalance weight of sand, cement, whatever.

I've got some such tipup pole designs in my architectural files, but 
damned if I can fine any that made it into the yo-yo search engines 
which don't search for a damned thing but the number of previous hits.




http://www.windpower.org/en/tour/design/
 (wind turbine towers and blades both oscillate at different 
frequencies---around three second for towers, one second for blades.)

http://www.westwind.com.au/towers.htm
 (guyed tower raised, lowered by truck or tractor)

http://www.wind-works.org/articles/lowering850.html
 (lowering a 64 foot tower with a griphoist)

http://www.ilr.tu-berlin.de/WKA/windbooks/workshop.html
 (Piggott book, European wind turbines, Tir For hand-carryable 
griphoist for lowering, erecting wind turbine towers)

http://www.fieldlines.com/story/2004/10/18/92629/024
 (raising, lowering turbine tower with Harbor Freight wormgear-winch, 
here powered by half-inch electric drill)

http://www.otherpower.com/trips3.html
 (how to design, build, reproduce a wooden windturbine propellor 
blade---airplane modelmaking magazines have archives on making blades 
from foam, forming the airfoil sections with nichrome hot wire, covering 
the toam with epoxy and glass cloth.)

http://www.sixriverssolar.com/wind_power.htm
 (a wood telephone pole makes a good wind turbine tower---needs no guys 
other than to erect and take down on a hinged-base)