NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: "Improved" sextants
From: hellos
Date: 2006 Jul 5, 09:26 -0500
From: hellos
Date: 2006 Jul 5, 09:26 -0500
Thanks, Alex. I did find a few fat references to duraluminum (US pronounciation) on the web. Some call it corrosion resistant, others say it is less so than pure aluminum. Some call it stronger than some steel alloys (but then again, isn't aluminum generally stronger than steel by weight?) while another at http://machinedesign.com/Content/Issue/6386%5C501_45301.pdf references it against some new engineering resin and shows a breaking strength of 190MPa versus 250 for brass and 300 for tinned bronze. The resin they are working with is inexpensive enough to use in electric razors so perhaps it can be used for sextant frames as well. --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to NavList@fer3.com To , send email to NavList-@fer3.com -~----------~----~----~----~------~----~------~--~---
