NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Lutz "Sextant" on eBay.
From: Bruce J. Pennino
Date: 2013 Jan 18, 09:18 -0500
From: Bruce J. Pennino
Date: 2013 Jan 18, 09:18 -0500
Bruce
Hello:
It is a surveying device used to determine the
approximate slope of land. Usually it consists of a simple low power telescope
with an internal leveling bubble. The slope is determined
using the external scale. I recollect a common name is
inclinometer. Foresters and loggers use them. In the "olden" days it could
be quickly used to determine rough road layout.
If you look in a surveyors online catalog,
these "hand levels" are often found under "accessories". Another
name is Abney level. Hand levels have their place in rough
preliminary work. I've used one for locating rail trails when I
wanted to maintain a rough grade not to exceed 5%. After a rough layout to
minimize cut/fill a more detailed surveyed layout is done. It is the "poor
man's" aerial survey where topo can be evaluated over a wide area.
I've never seen such a nice hand
level.
Bruce
----- Original Message -----From: Sean CSent: Friday, January 18, 2013 8:53 AMSubject: [NavList 21993] Lutz "Sextant" on eBay.
Anybody here know what this really is? My guess is some kind of surveying instrument. A few Google searches didn't return anything useful. Current bid is only $51.99.
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