NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Ocean Yachtmaster Exercises
From: Paul Hirose
Date: 2008 Aug 17, 10:33 -0700
From: Paul Hirose
Date: 2008 Aug 17, 10:33 -0700
George Huxtable wrote: > But the basis of the original enquiry was to the common confusion between > error and correction. If unsure about whether to add or subtract a correction or error, it helps if you remember that the objective is to remove error from the observation. Remove = subtract. Then it follows that a correction is added. This same memory aid will help if you have the number and know what to do with it, but can't remember the correct name. For instance, after a sight to check index error, the micrometer reads 58.8'. To put the reading right you add 1.2' or subtract -1.2'. The second value is what you remove, so it's the error, and the first value is the correction. -- I block messages that contain attachments or HTML. --~--~---------~--~----~------------~-------~--~----~ Navigation List archive: www.fer3.com/arc To post, email NavList@fer3.com To , email NavList-@fer3.com -~----------~----~----~----~------~----~------~--~---