NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: New sextant mirrors for old
From: Bill Morris
Date: 2009 Feb 11, 17:08 -0800
From: Bill Morris
Date: 2009 Feb 11, 17:08 -0800
Greg wrote " The question now is how to go about fabricating split and whole horizon mirrors?" Sorry, I didn't think about split mirrors. I'll edit the blog post in a few hours time to cover them. Whole horizon beam splitting mirrors shouldn't need replacing. The coating is said to be at least as hard and resistant as glass. I don't have any definite ideas about replacement. The principle is covered in some detail in US Patent number 4,421,407. The requisite material may be available on the surplus market somewhere. Bill Morris Pukenui New Zealand --~--~---------~--~----~------------~-------~--~----~ Navigation List archive: www.fer3.com/arc To post, email NavList@fer3.com To , email NavList-@fer3.com -~----------~----~----~----~------~----~------~--~---
