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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Snellius Construction questions
From: Richard M Pisko
Date: 2009 Jan 14, 22:46 -0700
From: Richard M Pisko
Date: 2009 Jan 14, 22:46 -0700
On Thu, 08 Jan 2009 14:03:52 -0700, Nicol�s de Hilsterwrote: > Later on I have been on projects where either station > pointers or 'circle charts' were used to solve the position. A circle > chart looks similar to a Decca chart, but now covered with circles that > resemble the angles measured. Are "circle charts" clear overlays for the coastal charts? Do you center one on each reference landmark, and find the proper intersecting angle lines by eye? I have a couple of vague ideas of how that may work, but I could be off on the wrong track altogether. For a different approach, cheap station pointers might be made of three clear plastic disks, joined by a hollow rivet at the center, and graduated on the outer periphery in degrees. Each disk would have one axial line pointing to its zero degree mark. However, I much prefer the workmanship in your real station pointers / three arm protractors. Thanks for posting photographs of them. -- Richard . . . Using Opera 9.2.4 after the "Dog" died --~--~---------~--~----~------------~-------~--~----~ Navigation List archive: www.fer3.com/arc To post, email NavList@fer3.com To , email NavList-@fer3.com -~----------~----~----~----~------~----~------~--~---