Yeah, I thought about those kinds of objections, but the "pin" could be a disk
about 1" below the surface; think about 2" diameter, 1/8" thick? Probably less
destructive potentially than a lot of ordinary debris seen at small airports.
And
should provide a solid hit for the metal detector.
But another idea, based on Matt's idea of marking along the edge. What if the
planners laid out a grid, based on a central straight line that would then be
marked off at appropriate foot marks/points. Using that as the "x" axis, at the
appropriate points, project off left and right on the "Y" axis using a laser
level
at a precise right angle to the central line. Portable, repeatable, but I'm
having
trouble envisioning the amount of effort to set it up once established. It
seems
simple in concept to me, but I'm not sure about execution.
Jim
Steven Trovato wrote:
> If I ran an airport, I wouldn't let you do that. If they object to paint,
> I doubt they would let you start drilling holes. I can just imagine the
> NTSB report, tracing back to some steel pin that somehow got loose, all so
> some guys can play with their sports cars.
>
> -Steve Trovato
> strovato@optonline.net
>
> At 09:15 AM 6/21/03 -0400, Jim Juhas wrote:
> >I don't know much at all about GPS, but would it be possible to locate the
> >exact
> >cone locations by imbedding steel pins in the surface, and later locating
>them
> >with a metal detector?
/// unsubscribe/change address requests to majordomo@autox.team.net or try
/// http://www.team.net/mailman/listinfo
/// Archives at http://www.team.net/archive/shop-talk
|