NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Gary LaPook
Date: 2015 Nov 17, 21:19 -0800
I uploaded the manual for this sextant at:
http://www.fer3.com/arc/img/106839.ma-1%20operation%20manual.pdf
I just weighed mine on my kitchen scale, it weighs 5 pounds, 15.0 ounces.
If you are not using it in a plane you can remove the averager and eliminate several pounds of weight, you only have to remove 4 screws. It is easy to put it back on again.
You can find replacement bulbs for 12, 6, or 3 volts, I posted that information before.
The MA-2 had a bubble so has the advantage that you can take sun shots without electicity sith the bubble illuminated by natural llight but the MA-1 needs batteries for all sights.
i asked the seller to post a photo of the back to see if it contains the screw holes for the strap. The averagers for the periscopic and for the MA-1 and MA-2 are interchangable very easily but the averager housings for the periscopic do not have the holes for the strap. It is possible the the one offered for sale h=may have had its averager replaced with a pericsopic one.
But, you really don't need the strap.
gl
