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From: Philip J. Rosch (no email)
Date: Mon Nov 01 2004 - 20:48:47 EST
Range at which a light can be seen is (1.17* SQRT of height of eye above sea
level + 1.17 * SQRT of height of light)
Regards....
Phil Rosch
Old Harbor Consulting
M/V Curmudgeon MT-44TC
Currently moored in Matanzas River, FL.
-----Original Message-----
From:
[mailto:] On Behalf Of Jim
Ague
Sent: Monday, November 01, 2004 6:06 AM
To:
Subject: RE: T&T: Fl G 4s 16ft 4M "27"
Regarding:
Both the Nominal and Luminous ranges do not take into account elevation,
observer's height of eye, or the curvature of the earth.
~~~~~~~~~~~~~~~~~~~
It seems to me that you wouldn't mount a 4M light on a 1ft pole. I don't
have the equation for earth's curvature in front of me, but how far away can
a 16ft light be seen from say a helmperson 12ft above the water?
-- Jim
~~~~~~~~~~~~~~~~~~~~~~~~
Jim & Rita Ague
M/V Derreen, Monk 36
at Waterside, Norfolk, VA
~~~~~~~~~~~~~~~~~~~~~~~~
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