A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Greg Rudzinski
Date: 2016 Apr 24, 12:03 -0700
For the ditch bag I would go with a solar powered calculator with trig functions. The cheapest can be had for a buck at the dollar store. For primary use I recommend the Ti-36X Pro ($15) which can store formulae for calculated altitude and azimuth. The dedicated hand held calculator is less expensive and more robust than a smart phone but will be missing nautical almanac data, rated chronometer, and selected star functions. I carry both a dedicated solar trig calculator and a smart phone (with 12volt plug) in the sextant box. The smart phone gets used 99.9 % of the time.
From: Bill Lionheart
Date: 2016 Apr 24, 14:24 +0100