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$John D. Howard: Re: Artificial horizon plexiglass windscreen and refraction?$

Re: Artificial horizon plexiglass windscreen and refraction?
From: Greg Rudzinski
Date: 2019 Jun 9, 09:07 -0700

Joe,

I have noticed no difference in sun observation intercept sets when using the Davis artificial horizon whether using the plex filters, glass, or without sheilding. Intercepts are generally no worse than +/- 0.8' using a metal sextant with x4 optic (no averaging).

Greg Rudzinski

$John D. Howard: Re: Artificial horizon plexiglass windscreen and refraction?$

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