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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: An artificial horizon opportunity?
From: David Pike
Date: 2017 Jan 29, 01:56 -0800
From: David Pike
Date: 2017 Jan 29, 01:56 -0800
Paul you wrote: You can get really thick gear oil (SAE 80 wt or even SAE 140 wt). Stuff is really thick, almost like honey. I used to use it for an AH before I got a bubble sextant. Would take quite a breeze to put ripples in it.
Is there a limit to this? As your oil approaches the consistency of toffee, does the time taken to setttle flat uppn first pouring or putting down become impractical? Also, could the breeze cause piling (like it does with tides) despite no ripples? Just a thought. I suppose the proof is in the results. DaveP
