[UK-CONTEST] Gin Poles/Falling Derricks

[Robin Thompson]

I managed to find a couple of feet of steel tubing with the same i/d as the
ali scaffold poles to bridge the join around one of those stupidly designed
couplers - been up for 20 odd years now with no problems...

73
Robin
G3TKF

> -----Original Message-----
> From: uk-contest-bounces at contesting.com [mailto:uk-contest-
> bounces at contesting.com] On Behalf Of Pete Lindsay
> Sent: 23 June 2010 13:26
> To: Tom Boucher
> Cc: uk-contest at contesting.com
> Subject: Re: [UK-CONTEST] Gin Poles/Falling Derricks
> 
> Tom ,
> 
> Just use a standard scaffolding coupler they are cheap and very
> strong. I have had many "jaybeam" type couplers fail but since
> changing to these 20 years ago not a single problem since. When we
> have had the occasional "incident" the coupler has never failed even
> when the scaffolding pole has ended up looking like a banana !
> 
> 
> Pete, G4CLA
> 
> On 23 June 2010 11:51, Tom Boucher <tom at telemetry.demon.co.uk> wrote:
> > Does anyone know a source of external 2 inch mast couplers without that
> weakening slot? They do exist because I have one. I also have some
internal
> expanding couplers which are probably stronger than the external things.
> >
> > Tom G3OLB
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