In a message dated 5/31/01 4:58:34 AM Pacific Daylight Time, w5kp@swbell.net
writes:
> This will
> also be my first experience with big grips, so that's another little
> learning curve. I hope they work as slick as people say. Is it advisable
(or
> permissible) to add a cable clamp for insurance near the dead end of big
> grips?
There is no dead end with Preformed grips - the guy wire goes straight
into the grip.
> Have read a couple of scare stories about them suddenly slipping,
> don't need that when my old wrinkley butt's up there.
Unless the wrong grip is used for a given cable (wrong lay, wrong
material, etc.) it's hard to see how it would slip even under pretty large
forces. If it slips - something is wrong somewhere. I guess it would be
possible but the chances are pretty danged remote.
> Still looking
> locally for a mast, haven't been able to find anybody yet in the Oklahoma
> City area who even knows what SAE 1026 or 1027 2" tubing is, but have only
> talked to pipe guys, need to talk to the specialty tubing guys, I guess, or
> the race car shops. All I've see so far here is ASTM "A-xxx" specs for
> oilfield pipe, vice automotive chassis tubing. Since this is an oil town,
> lots of folks have 1-1/2" heavy wall pipe that is 1.900" OD, but the yield
> specs on it are only about 30,000 to 35,000 lb, which is about half of what
> I understand the SAE stuff is. Of course, you can get it in wall
thicknesses
> up to 5/8" (would that be a heavy mast or what!). I'll keep looking.
Yes - the pipe guys are the wrong ones to be talking to. You need a real
tubing supplier and I'll bet you a nickel there's at least one in OK City.
Cheers, Steve K7LXC
Champion Radio Products
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