Topband: DXE Thunderbolt

[Henk PA5KT]

I had the 18m spiderpole and now I am using the 22m spiderpole.
It is guyed with 4x2 guys.
It is a stable mast. I raise it by hand by extending the tubes one by one.

I would not place the mast over another tube. The tubes cannot handle 
force from inside.

73 Henk PA5KT

Op 7-12-2020 om 13:01 schreef CUTTER DAVID via Topband:
> Roger
>
> Thanks, I had the same idea but I am concerned about the point pressure at the end of the scaffold pole on the inside of the Spiderpole, since on raising and lowering that would be at its extreme.    I came to the conclusion of using a "soft" buffer to spread the contact pressure.  I didn't think of wood, perhaps pvc drain pipe or the like but I'll look at wood since it can be tailored to fit and I'm only doing it once.  The falling derrick is best for me, so conquering this detail is important.  What I will never do is drill the f/g pole - that's a quick way to wasting a good pole.  This will be a very windy location, so, 3 x 4 guys is planned.  I know 2 x 4 guys works for the 18m on its own.
>
> David G3UNA/G6CP
>
>> On 07 December 2020 at 11:35 Roger Kennedy <roger at wessexproductions.co.uk> wrote:
>>
>>
>>
>> Well some telescopic fibreglass masts will fit over an alloy Scaffold Pole,
>> so you just slide it over and fit a Jubilee Clip a couple of feet down.
>>
>> Otherwise, it's down to buying some tubing to act as a joining sleeve . . .
>> where the inside diameters are different I have known people use a length of
>> hardwood, and shave each half to the correct inside diameter of the metal
>> and fibreglass poles.
>>
>> 73 Roger G3YRO
>>
>> ----------------------------------------------------------------------
>>
>> Further to that scheme, is there a sound way to join a Spider pole to a
>> scaffold pole? The cost change from 18m Spider to the next sizes up is quite
>> a jump, but I've often thought an alloy scaffold pole at the base would be
>> worth the effort if I had a decent way to join them. I can raise the 18m
>> Spider pole using a falling derrick on my own and a rigid extension
>> underneath looks doable with help.
>>
>> David G3UNA/G6CP
>>
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