Score publications

[K3NA at aol.com]

Please add to the wish list:

In the pre-publication electronic posting of stations whose scores will be
published, please also print the callsigns of scores that will be included in
each contest club's total: e.g.,

PVRC:  (list of calls in alphabetical order)

K3EST did this this year for WW for the first time.  It was a good sanity
check.

-- Eric K3NA

>From Michael Owen <MOWE at SLUMUS.STLAWU.EDU>  Sat Apr 22 17:39:20 1995
From: Michael Owen <MOWE at SLUMUS.STLAWU.EDU> (Michael Owen)
Date: Sat, 22 Apr 95 11:39:20 EST
Subject: Guying Towers On Rocky Terrain
Message-ID: <22APR95.12588120.0018.MUSIC at MUSIC.STLAWU.EDU>

>Has anyone had experience installing guy anchors in rock?
>
>Is drilling a a viable alternative to blasting or using
>a jack hammer? Who would I contact for this type of work.
>What kind of device do I use to drill into rock about 5-6'
>at an angle of 45 degrees, your typical guy anchor depth
>and inclination.

You can rent a rock drill at an "equipment rental" type place.
The same sort of place that rents big generators, compressors,
and other power tools for construction.  I have rented little
ones for drilling for re-bar and BIG ones for drilling 1 1/2"
holes 6' into granite.  The latter required a trailer-towed
diesel compressor.  The drill bit was a rotary-impact type drill
that chewed through granite in no time.  It would do wonders on
your shale.

Ya gotta consider the type of rock bolt that you'll need.  One kind is
sorta like a huge bolt that is cemented into the hole.  The other,
which I recommend for not-especially-solid bedrock, is an expandable
bolt.  It has a split shank that increases in diameter as it is
tightened.  Serious business.  Anything less than 5' long is a real
gamble with your tower.
>
>The rock is mostly Martinsburg shale. The tower will be
>110' of Rohn 55G.

You can do the job yourself for a couple of hundred bucks.  But yoiu
WILL sweat.  :)

W9IP

Michael R. Owen
MOWE at SLUMUS.StLAWU.edu