NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Averagers
From: Robert Eno
Date: 2002 Dec 17, 12:53 +0000
From: Robert Eno
Date: 2002 Dec 17, 12:53 +0000
Interesting you should ask that. My first sextant was a MKIX-A. I initially used the averager (on land) to read off the sights and quickly found that it was not only unnecessary but sometimes detrimental to the accuracy of the sight. The averager was intended to be used for unstable platforms, like a bucking, heaving, Lancaster Bomber. In this case, it apparently served its purpose well. For a stable platform like your backyard, you need not use the averager, however, it should be noted that on the MKIX-A, you still have to re-wind the averager to de-activate a shade which blocks sight aperture and which is directly connected to the averager mechanism. Robert >Many aircraft bubble sextants come with various types of averagers. What are >the advantages and disadvantages of having an averager? Is this something I >would want to practice in my backyard? ------------------- Email sent using AnyEmail (http://netbula.com/anyemail/) Netbula LLC is not responsible for the content of this email
