[UK-CONTEST] Fibreglass Mast

Clive GM3POI gm3poi2 at btinternet.com
Mon May 2 01:31:07 PDT 2011


Either fibre glass resin or try a couple of hose clamps next to each 
other. That has worked here, the other thing is avoid having to guys too 
tight. 73 Clive GM3POI
On 02/05/2011 08:03, Dave Lawley wrote:
> I'm currently using a mast of about 38ft to support a doublet. Most of
> the mast is made of a telescopic fibreglass mast bought on eBay. I
> removed the top two sections as they are very flimsy, and attached light
> wires and 300ohm feeder to the top with cable ties, making a lightweight
> structure.
>
> Each joint in the mast was pulled out to a tight fit, then taped and
> finally a cable tie installed over the top. It is guyed at the top and
> middle.
>
> However, in the strong winds of the weekend a couple of sections have
> telescoped and I now only have a 30ft mast for entry in this evening's
> 80m CC contest! This was mainly due I think to wind pressure on the
> wires and guys applying a strong compressive force on the mast.
>
> My question to UK-contest is what is the best way of fixing the
> sections? I'm not too bothered about being able to telescope the
> sections again so I could glue it, what type do you recommend or
> alternatively would it work to use rivets to fix the joints? Any other
> suggestions gratefully received.
>
> 73, Dave G4BUO
>
> _______________________________________________
> UK-Contest mailing list
> UK-Contest at contesting.com
> http://lists.contesting.com/mailman/listinfo/uk-contest
>




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