NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Troughton circle in Dresden
From: Fred Hebard
Date: 2005 May 24, 21:54 -0400
From: Fred Hebard
Date: 2005 May 24, 21:54 -0400
I was hoping to be able to write up my visit with Alex, which occurred right as he was leaving for Europe, and also at a busy time for me. The SNO-T had excellent optics, in my opinion. I also liked the light weight, at Alex mentions. We were taking artificial horizon sights of the sun from Alex's famous shaky porch, and a large bulldozer leveling ground nearby was shaking the porch enough that it was hard to find a moment when the images weren't quivering. I don't know whether it the vibrations from the bulldozer were being transmitted through the ground or through the air from its noisy exhaust. Alex's apartment is built on fill on or near a swamp, so the ground may be quite easily vibrated. Between the bulldozer and being rushed for time, I wouldn't put much stock in our observations for accuracy, but we got to handle each other's instruments. I'm really glad Alex has found a place that will calibrate sextants! And also glad that he can now trust the accuracy of his. Fred Hebard On May 24, 2005, at 1:59 PM, Alexandre Eremenko wrote: > > I recently had an opportunity to try the brass sextants > of Fred (CP and a small Husun/Mate). I found them extremelly heavy:-) > My hand was tired. > And Fred said he liked my aluminium SNO-T, because of its lightness. > > A >