[Boatanchors] new Ground system

Fri, 15 Mar 2002 08:08:15 -0700

WOW.  When i was in the Air Force taking care of their aircraft between 1959 and
1968 all we did was connect a cround wire from the airplane to a designated
ground coming thru the concrete.  Usually one ground point between aircraft.
Depending on where they were parked on the ramp of course.  SOme places had a
single ground point for each parking spot.

Used 3 point grounding when refueling.  Ground aircraft, ground fuel truck and
then ground fuel truck to aircraft.  I never heard of any problems in the 10
years i was doing the work.

Interesting thread here and lots of good suggestions/comments/stories.  Glad i
thought of it.  Now back to work..

Larry
W0OGH

James Duffer wrote:

> One of the most impressive "dissapative" lightning protection system was the
> Federal Express Terminal located at Memphis TN.  I got a tour of their
> system years ago.  I guess when you are refueling a plane you want lots of
> protection against a spark.  I am not for sure but the system may have been
> installed by NEA Associates who at the time had a rather controversial
> lightning protection system.
>
> 73, Jim, wd4air
>
> >From: Glen Zook <[email protected]>
> >To: Gary Schafer <[email protected]>
> >CC: "Duane Fischer, W8DBF" <[email protected]>, Arthur Shulman
> ><[email protected]>, [email protected], [email protected]
> >Subject: Re: [Boatanchors] new Ground system
> >Date: Thu, 14 Mar 2002 20:48:16 -0800 (PST)
> >
> >My tower has NEVER been HIT by lighting.  However,
> >there is more to this than just grounding.  You have
> >to use dissipation devices as well.  Those can be made
> >for under $10 apiece (one is needed for each leg of a
> >tower, and if the tower is over 100 feet tall, they
> >should be placed from 50 to 75 feet apart up each
> >leg).  Or, you can buy them commercially built for
> >about $350 apiece!
> >
> >A dissipation device will not protect a tower 100%
> >from a strike (nothing can).  However, they can reduce
> >the chances of a strike up to 99.99%.
> >
> >Glen, K9STH
> >
> >
> >--- Gary Schafer <[email protected]> wrote:
> > > Glen,  are you saying that because of your grounding
> > > system that your
> > > tower has never been hit by lightning? Or that you
> > > have never had any
> > > damage from a lightning strike.
> >
> >
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