SailNet Community - View Single Post - Speed Log out by around 3 knots
View Single Post
post #3 of Old 03-30-2012
hellosailor
Reward for lost Kraken!
 
hellosailor's Avatar
 
Join Date: Apr 2006
Posts: 11,481
Thanks: 5
Thanked 132 Times in 129 Posts
Rep Power: 11
   
Re: Speed Log out by around 3 knots

"when the display shows 2 knots my handheld GPS will show 5"
In other words, your waterwheel is VERY SLOW.

When is the last time you removed the impeller and cleaned it out? Sometimes you'll find enough growth in there to freeze it up in just a week or two. I'll pull the log whenever the boat is being left at the mooring, and if it has been left in, it gets cleaned (old toothbrush) picked (dental picks) and if there is barnacle crud on it, you may need to soak it in vinegar as well.

Before you decide something needs calibrating--pull it and see if it isn't just crud.
hellosailor is offline  
Quote Share with Facebook
 
 
For the best viewing experience please update your browser to Google Chrome