Paddle Wheel Speedometer - Page 2 - SailNet Community

   Search Sailnet:

 forums  store  


Quick Menu
Forums           
Articles          
Galleries        
Boat Reviews  
Classifieds     
Search SailNet 
Boat Search (new)

Shop the
SailNet Store
Anchor Locker
Boatbuilding & Repair
Charts
Clothing
Electrical
Electronics
Engine
Hatches and Portlights
Interior And Galley
Maintenance
Marine Electronics
Navigation
Other Items
Plumbing and Pumps
Rigging
Safety
Sailing Hardware
Trailer & Watersports
Clearance Items

Advertise Here






Go Back   SailNet Community > General Interest > General Discussion (sailing related)
 Not a Member? 


Like Tree2Likes
Reply
 
LinkBack Thread Tools
  #11  
Old 03-22-2013
capta's Avatar
Master Mariner
 
Join Date: Jun 2011
Location: somewhere in the Windward or Leeward Islands
Posts: 2,036
Thanks: 21
Thanked 102 Times in 97 Posts
Rep Power: 4
capta is on a distinguished road
Re: Paddle Wheel Speedometer

If you're sailing in places like the PNW with lots of debris in the water, like logs, perhaps this was to protect the speedo impeller?
I also find a speedo a welcome addition to our GPS info.
Reply With Quote Quick reply to this message Share with Facebook
  #12  
Old 03-23-2013
Fstbttms's Avatar
I don't discuss my member
 
Join Date: Feb 2003
Location: Under a boat, in a marina, in the San Francisco Bay
Posts: 2,164
Thanks: 5
Thanked 25 Times in 25 Posts
Rep Power: 13
Fstbttms will become famous soon enough
Re: Paddle Wheel Speedometer

Quote:
Originally Posted by Cmdr311 View Post
I think the purpose is to keep seaweed from fouling the paddle wheel. I can always put it back on next year if the speedo fouls excessively.
I doubt it. In 20,000+ hull cleanings, I have never seen seaweed foul a knotmeter paddlewheel.
Reply With Quote Quick reply to this message Share with Facebook
  #13  
Old 03-23-2013
SchockT's Avatar
Senior Member
 
Join Date: May 2012
Location: North Vancouver, BC
Posts: 1,428
Thanks: 1
Thanked 27 Times in 25 Posts
Rep Power: 3
SchockT is on a distinguished road
Re: Paddle Wheel Speedometer

Quote:
Originally Posted by capta View Post
If you're sailing in places like the PNW with lots of debris in the water, like logs, perhaps this was to protect the speedo impeller?
I also find a speedo a welcome addition to our GPS info.
The impeller is probably more vulnerable to that stuff in the traditional location on the bow. We had an impeller get knocked right out of the thru-hull by a chunk of wood during a distance race. We didn't know about it until someone jumped down below to get something and splashed into ankle deep water!

I wonder what the flow on the keel would be doing when the boat is heeled over, and maybe making some leeway. Would it flow straight back the way the impeller is aligned, or will there be a down element to the flow angle? That would affect the accuracy of the knot meter I would think. So are they trying to straighten a bit of the flow at the knot meter?

Whatever it is it is a very strange thing to have sticking out of the side of your keel.
__________________
1979 Santana 30 Tall Rig
Hull#101
Reply With Quote Quick reply to this message Share with Facebook
  #14  
Old 03-23-2013
jameswilson29's Avatar
Senior Smart Aleck
 
Join Date: Aug 2009
Location: Richmond, Virginia
Posts: 2,152
Thanks: 34
Thanked 70 Times in 65 Posts
Rep Power: 6
jameswilson29 is on a distinguished road
Re: Paddle Wheel Speedometer

Quote:
Originally Posted by capta View Post
...
I also find a speedo a welcome addition to our GPS info.
I, too, appreciate having a speedo in addition to GPS. Knowing how fast you are going through the water and over the ground is very useful information in many situations in tidal waters and in the ocean where there are currents.
Reply With Quote Quick reply to this message Share with Facebook
Reply

Quick Reply
Message:
Options

By choosing to post the reply above you agree to the rules you agreed to when joining Sailnet.
Click Here to view those rules.

Register Now

In order to be able to post messages on the SailNet Community forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
Please note: After entering 3 characters a list of Usernames already in use will appear and the list will disappear once a valid Username is entered.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

 
Posting Rules
You may post new threads
You may post replies
You may post attachments
You may edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On


Similar Threads
Thread Thread Starter Forum Replies Last Post
pulling speed log paddle wheel ysabelsdad Gear & Maintenance 62 12-05-2014 02:59 PM
log paddle wheel replacement Captndaniel Electronics 2 08-30-2010 01:10 AM
Speed Paddle Wheel Keeps Sticking backcreeksailor Gear & Maintenance 15 06-01-2009 07:26 PM
Stuck Knotmeter Paddle Wheel MikeinLA Gear & Maintenance 7 09-30-2006 05:53 PM
Paddle wheel transducer dargiem Gear & Maintenance 14 01-21-2003 06:02 AM


All times are GMT -4. The time now is 07:32 AM.

Add to My Yahoo!         
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2015, vBulletin Solutions, Inc.
SEO by vBSEO 3.6.1
(c) Marine.com LLC 2000-2012

The SailNet.com store is owned and operated by a company independent of the SailNet.com forum. You are now leaving the SailNet forum. Click OK to continue or Cancel to return to the SailNet forum.