He was changing lamps during the world series??
Pat Barthelow wrote:
Bear in mind also that moving isn't breaking. A tower can potentially
flex
a pretty substantial (and scary, if you're up on top) distance without
failing (and, in fact, that flexing is essential to avoid stress
concentrations).
I can attest to the 'scary' sensation of ANY movement of a pole, or
tower, to those on top. While strapped off, on top of a very sturdy
65 ft wooden power pole, with a pulley/halyard tensioned dipole at
the top, a ground crew assistant was told to pull her up, tight,
which he did... WHOAAAAA...the 50 pounds or so of pull bent the pole
what seemed to me at the time, like 8 feet..real scary.. When I did
the same thing on the ground, watching the top of the pole, what felt
like 8 ft swinig, was really about 4 inches...Then there is the true
story about the guy changing the lamps at Candlestick park when the
1989 earthquqke happened. Free standing lighting poles probably 150'
tall, He was interviewed shortly after the quake, and he was clearly
shook up at his experience, hanging on through the earthquake...cant
imangine what that woulld have been like...
73, de Pat AA6EG aae6g@hotmail.com
_______________________________________________
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.
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
_______________________________________________
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.
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
|