Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 22-02-2008, 01:45   #16
Moderator Emeritus
 
GordMay's Avatar

Join Date: Mar 2003
Location: Thunder Bay, Ontario - 48-29N x 89-20W
Boat: (Cruiser Living On Dirt)
Posts: 31,577
Images: 240
What John (MidLandOne) said.

I’d be happy to steer to within 5 degrees of my intended compass heading; whereas Maggie seemed to be able to steer incredibly accurately (1-2 degrees?).

Given that the typical steering compass is only graduated in 5 degree increments, and identified in 30 degree increments, anything smaller than a 5 degree difference is a visual estimation.

Generally estimated values, Set & Drift introduce further (unknown) errors into our reckonings.

Any calculation should only be assumed to be as accurate (at most) as it's least accurate component value.

Of course, there’s no reason to deliberately add MORE inaccuracies/unknowns to our plotting & steering computations.
__________________

__________________
Gord May
"If you didn't have the time or money to do it right in the first place, when will you get the time/$ to fix it?"



GordMay is offline   Reply With Quote
Old 22-02-2008, 10:20   #17
Moderator Emeritus
 
David M's Avatar

Cruisers Forum Supporter

Join Date: Sep 2007
Location: San Francisco Bay
Boat: research vessel
Posts: 10,150
I am of the belief it is best to remove as many sources of error as possible. Error tends to compound itself. I would gladly take one source of error over more sources of error any day. I understand that for small boats, a +/- 5 degree steering error by the helmsman is pretty normal and steering better than that in anything less than calm seas with the helmsman concentrating is unrealistic.

This all seems to boil down to how good is good enough?...and that is a very subjective thing depending on the individual.
__________________

__________________
David

Life begins where land ends.
David M is offline   Reply With Quote
Reply

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
wire chart ? cooper Electrical: Batteries, Generators & Solar 30 22-03-2008 15:36
How do I know if the chart is wrong? MarkJ Navigation 27 12-12-2007 12:52
CHART SYMBOL jezza Navigation 2 08-09-2007 14:54
Chart No. 1 TaoJones Navigation 6 10-08-2007 20:09
Chart Swapping Ray Durkee Navigation 0 23-10-2005 04:37



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 09:15.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.