SailNet Community - View Single Post - Circumnavigation without instruments
View Single Post
Old 02-28-2013
flandria's Avatar
flandria flandria is offline
Senior Member
Join Date: Jul 2012
Location: Beautiful Georgian Bay, Canada
Posts: 174
Thanks: 9
Thanked 9 Times in 8 Posts
Rep Power: 3
flandria is on a distinguished road
Send a message via Skype™ to flandria
Re: Circumnavigation without instruments

Boasun.... Yes, you are correct. However, things are a little more complicated and uncertain when you add drift (current) and leeway (especially when traveling under sail). After a few miles, depending on conditions, your actual course vs. DR course may start to diverge noticeably. I'll omit small "discrepancies" in steering the course... Your point that you may well be without celestial observations for a prolonged time is certainly valid and thus one should always be prepared for "the worst" and keep a DR log up at all times, regardless of other gadgets available.
Reply With Quote Share with Facebook