In a message dated 2/20/2006 2:52:06 P.M. Pacific Standard Time,
> I no longer have this tower as a "tilt over" because we had a winch lock
failure when the tower was being cranked vertical. when It got up 3/4 of
the way , the winch brake "released" on its own allowing the cable to
unreel unimpeded by friction and in about 1.2 seconds that whole top
section "swung" back to the ground pulverizing the antenna, breaking the
welds at the hinges and bent the counter weight boom section. Two other
sections of 25G were bent and it absoluely "PULVERIZED" the antennas and
> Luckily no one was hurt
Glad to hear that. I have rarely seen a Rohn fold-over that wasn't
damaged at some time or other. A winch failure will do it. A buddy had an
element catch on a bush as he was cranking his up. He expected it to just
pull free; unfortunately it didn't and it tweaked - and ruined - a fold-over.
It's a potentially dangerous installation.
My comment on the proposed roof level installation is that as long as you
follow the LXC Prime Directive to "DO what the man you'll be fine. I think the
fold-over calls for 4-way guying at the first set. Are you going to do that
or are you depending on the housebracket to take the forces? That's a
potentially fatal installation since it wouldn't take too much to exceed the
housebracket capacity - even if you use something other than the Rohn version.
retract my remark if you get an engineer to calc and design everything.
Other than that, knock yourself out.
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