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winds in nz


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robinson helicopters

 

don't do well in nz

 

in windy conditions the blade can decapitate the pilot

 

more commonly just take slices off the cockpit bubble, but the result remains the same

 

today has been a bustlerly day in ak

 

because you can't see the wind

 

it is continually underestimated

 

esp. in the southern hemisphere 

 

https://www.stuff.co.nz/auckland/local-news/western-leader/108254605/emergency-services-at-avondale-concrete-structure-collapse

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you shouldn't fly a robinson in this swirling +/-pumping wind

 

and you neither should you have 15mtr concrete panels

 

propped up by sticks ...

 

this northern hemisphere style of construction

 

is not suited to 1% of our days 

 

but as it's an invisible killer

 

there are no eye-witness

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Those panels are drilled on site after being lifted into position by crane then fitted with dyna bolts and propped up. Safe enough but the ground bolts have to be set into solid well cured cement, this isnt always the case. The crews who specialise in this kind of construction are very good at it like Highprop and with the huge amount of panels that go up around the place (theres about 20 along side the driveway at Norsand at the moment), its rare this happens.

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It's not as rear as you may think Crazyhorse. I do not like walking past the bloody things on windy days. Was on a site a few years back when a couple fell over. Big panic because an apprentice plumber was unaccounted for. Turned out he had gone to a site in town and hadn't signed out.

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Well, delivered loads for wilco, Stevies when they were in riora drive when driving for mach movers and never an issue when the dyna bolts are put in correctly. I knew the guy who was crushed at Hobsonville some years back when several panels were bowled by a tornado, a nice guy who delivered prefab steel for Goeorge Grant Engineering and was told the dyna bolts were not fully locked in. Incidentally erice, the maximum length for trucked to site precast panels is 40 feet. There is no 15m.

Truck 002.jpg

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