My plans are to put up ~134' R45G with the top ~93' being above an RTS rotating
tower rotor with guy rings... antennas will be stacked thus the tower will be
heavily
loaded [we are in a 70 MPH zone here in SE AZ].
I read somewhere, I think K7LXC or a link through Champion, a study on guying
and what makes towers come down... this was several years ago. Guy stretch
appeared to be a big problem with the tower eventually failing at the base due
to
the stretch. A comparison was made between steel and philly with philly
stretching
MUCH more - enough that to me it looked silly to consider it.
However - since then has there been new information on the subject? Is using
philly
acceptable (I know the anecdotal comments will come with that one)... ? I will
need
to break up the guys if steel and this is a great deal of work so philly would
be better
from that aspect - but if it is indeed less capable of holding a heavily loaded
tower
(antennas along the top 90' length) then the effort on steel is worth it.
Any more data in - scientific analysis to agree with or modify the original
conclusions
put forth on this subject?
thanks for your considered opinion.
Gary K9RX
_______________________________________________
See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless Weather
Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any questions
and ask for Sherman, W2FLA.
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