Trailer Sailor Forums

S2 6.7/6.9/22 Forum

GPS vs Knot Log

Posted By: Law Powell S2 6.9 #61 Denver
Date: 6/29/03 11:14p.m.

Report: outside forum guidelines

In Response To: GPS vs Water speed (Steve Mafera 6.9 #94 NC Indiana)

Water speed and GPS speed will differ in a current. VMG is given by the GPS if you tell it what your next waypoint is. VMG equals GPS speed if you sail directly toward the waypoint. My sailing has been on lakes lately so I used my GPS to calibrate my knot log which was reading 25% low. Also, the knot log seems to have a different error on opposite tacks so I had to calibrate for a compromise. Have you experienced this?

Messages In This Thread

GPS vs Water speed -- Steve Mafera 6.9 #94 NC Indiana -- 6/29/03 4:41p.m.

 GPS vs Knot Log  -- Law Powell S2 6.9 #61 Denver -- 6/29/03 11:14p.m.

Re: GPS vs Knot Log -- Steve Mafera 6.9 #94 NC Indiana -- 6/30/03 6:41p.m.

Re: GPS vs Knot Log -- Martin Radloff 6.9 # 93 -- 6/30/03 8:46p.m.

Re: GPS vs Knot Log -- Steve Mafera 6.9 #94 NC Indiana -- 7/1/03 6:44a.m.

 

Post Response
Your Name:
Your E-Mail Address:
Subject:
Message Is your topic political? If so, be sure you're posting in The Political Corner
Click here for help on smiley faces and formatting codes If you'd like to include a link to another page with your message, please provide both the URL address and the title of the page:
Optional Link URL:
Optional Link Title:
If you'd like to include an image (picture) with your message, please provide the URL address of the image file: You may upload a file to our server by clicking here.
Optional Image URL:
Please type these four characters into the field below. Do not enter spaces, just numbers and letters.