[TowerTalk] Fwd: Raising 25G with a helicopter
Roger (K8RI) on TT
K8RI-on-TowerTalk at tm.net
Fri Oct 25 12:55:56 EDT 2013
On 10/25/2013 11:42 AM, K7LXC at aol.com wrote:
>> I only watched a little and couldn't see how it was attached. How were
> they going to detach the cable?
> They have an electrically operated hook - push the button and the hook
> opens up.
> Yes, there were a bunch of obvious safety violations.
> I've used helicopters several times and it's a nifty albeit expensive
> way to go. The instances were where you couldn't use a crane for big yagis.
> The interesting part is that while the chopper is hovering, it's in
> equilibrium so all you have to do to move the load is push or pull it -
> pretty interesting. Doesn't take much to do that.
It's a strange feeling that's difficult to describe because it doesn't
feel quite like it's suspended from a point. When you push the whole
suspension moves, and you have all that inertia, so getting in a hurry
can result in that tower swinging like a pendulum.
> The biggest thing to look out for is that all of the moving air
> creates a BIG static build-up on the antenna so you need to discharge it before
> you grab the antenna.
> And the one I rented about 15 years ago was $450 an hour.
Considering the operating costs for a small one used to run 150-200 an
hour that's not bad, I don't know what the costs are on the simpler ones
like the Robinson and I'm a few years out of date.
Spent a few hours shooting road rallies from them. Now that was fun! <:-))
> Steve K7LXC
> TOWER TECH -
> Professional tower services for amateurs
> TowerTalk mailing list
> TowerTalk at contesting.com
More information about the TowerTalk