NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Can You Bias Ho?
From: Bill Morris
Date: 2014 Apr 2, 21:05 -0700
From: Bill Morris
Date: 2014 Apr 2, 21:05 -0700
Brad
Nicolas has arranged the penta prism so that it can add or subtract 100 grads (90 degrees) from the reading. See Figures 11 and 12 on his web site, which shows the light path going up and down, respectively.
Bill Morris
Pukenui
New Zealand
----------------------------------------------------------------
NavList message boards and member settings: www.fer3.com/NavList
Members may optionally receive posts by email.
To cancel email delivery, send a message to NoMail[at]fer3.com
----------------------------------------------------------------
