The problem with the SlipNott (or whatever the spelling)
is that it depends on the mast being very close to 2 inches.
With just a little galvanizing, you end up having to deform
the clamp, and then the supposed large clamping area becomes
questionable. This means that testimonials of successful
installations don't necessarily translate to your installation.
The clamps on the K7NV prop pitch are better IMHO because
they wrap all the way around and work like a big hose clamp.
Kurt is one of those rare engineers who seems to do everything
the right way, not the cheapest way. As long as the mast
is circular, they will fit like a glove, at least within
limits. My Texas Towers mast is close to the upper limit of diameter.
Rick N6RK
Jim Chaggaris wrote:
> Tennadyne sells the "Slip-Not"
>
>
> Best Regards,
>
> Jim
>
> James Chaggaris
> President
> PowerOne Corp./PowerOne Environmental
> 1020 Cedar Ave. Suite 203
> St. Charles, IL 60174
> Phn: 630-443-6500
> Cell: 630-669-2241
> Fax: 630-443-6505
> Website: www.pwrone.com
>
>
>
>
> -----Original Message-----
> From: towertalk-bounces@contesting.com
> [mailto:towertalk-bounces@contesting.com] On Behalf Of Mike
> Sent: Monday, November 07, 2011 2:19 PM
> To: towertalk@contesting.com
> Subject: Re: [TowerTalk] Pinning mast?
>
> There was a gadget called "Slip-Not" (sp?) that looked interesting, but
> now
> I can't
> find a link.... anybody remember it?
>
> 73, Mike NF4L
>
> On 11/7/2011 2:50 PM, K7LXC@aol.com wrote:
>> Howdy --
>>
>> I've got a sloppy fit between a mast clamp and a mast - both
>> steel.
> It
>> won't shim properly so I think my only option is to pin the mast. I've
>> done it a bunch of times and mostly they hold butr sometimes they don't
> so I'm
>> proposing to use 2 in one direction and another two 90 degrees from the
>> first two with good-sized high strength bolts. Other than the challenge
> of
>> doing it at altitude, is there anything else I should be considering?
>> Or
> is
>> there another way to do it?
>>
>> This is a prop pitch with big antennas on it.
>>
>> Cheers,
>> Steve K7LXC
>> _______________________________________________
>>
>>
>>
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>>
>
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