I stress I am not an expert.
But I do observe arborists and rock climbers using sliding lanyards =
(Prusik knots) and ratchet type ascenders a lot.
The advantage of the technique as I see it is that one hooks on once, =
and is hooked on all the time. One can virtually free climb a tower =
which reduces time of exposure compared with sequentially hooking and =
unhooking cow tails or the like. And the more times one hooks and =
unhooks the more chance there is of getting something wrong.
Once one is in position and ready to work then of course hook up with =
positioning and fall arrest gear. Still stay hooked to the static line, =
tho.
At least that is how I am doing it until I see good reason to do =
otherwise. Have tried both ways.
73
Barry=20
end
Barry Kirkwood PhD ZL1DD
Signal Hill Homestay
66 Cory Road
Palm Beach
Waiheke Island 1240
NEW ZEALAND
ph/fax 64-9-372-5161
www.waiheke.co.nz/signal.htm
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