Help me build a windvane - Page 4 - 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 > On Board > Gear & Maintenance
 Not a Member? 


Like Tree1Likes
Reply
 
LinkBack Thread Tools
  #31  
Old 01-07-2012
mitiempo's Avatar
Senior Member
 
Join Date: Sep 2008
Location: Victoria B.C. Canada
Posts: 7,057
Thanks: 0
Thanked 68 Times in 59 Posts
Rep Power: 7
mitiempo will become famous soon enough mitiempo will become famous soon enough
How is the Norvane downwind in stronger winds? At what apparent wind does it improve going downwind?
__________________
Brian
Living aboard in Victoria Harbour
Reply With Quote Share with Facebook
  #32  
Old 01-07-2012
smurphny's Avatar
Over Hill Sailing Club
 
Join Date: Feb 2009
Location: Adirondacks NY
Posts: 2,779
Thanks: 54
Thanked 59 Times in 57 Posts
Rep Power: 6
smurphny is on a distinguished road
The Norvane works well in strong winds as long as the helm is balanced and the wind is not too gusty. It is best when well offshore, away from changing wind conditions. In a steady wind, it is a real pleasure to be able to get away from the wheel. The thing will steer for hours on end. The effects of shore on wind direction and intensity happen too quickly for the vane to deal with. It needs to be adjusted if the wind direction changes to maintain the same course. It cannot correct enough to overpower gust-caused windward helm. It will try its best but just cannot turn the wheel enough to deal with this. I have arranged the wheel lines so that they can be immediately released when this happens. It is not as efficient as a good autopilot which will correct immediately but requires no power drain.

With a following sea, I would estimate that it is really not very useful below 5 knots but I have not done that much serious experimentation with it to see if I can improve its performance in those conditions. Also, a following sea causes the boat to slew around a bit coming down the backsides of waves and this complicates its mission. The apparent wind is often close to 0 when going downwind below 10 knots so there is really not much wind for the vane to detect. Once the wind gets to blowing faster than the boat can go, it is more effective.
__________________
Alberg 35: With a philosophical flourish Cato throws himself upon his sword; I quietly take to the ship.
Reply With Quote Share with Facebook
  #33  
Old 01-07-2012
mitiempo's Avatar
Senior Member
 
Join Date: Sep 2008
Location: Victoria B.C. Canada
Posts: 7,057
Thanks: 0
Thanked 68 Times in 59 Posts
Rep Power: 7
mitiempo will become famous soon enough mitiempo will become famous soon enough
Thanks.
I am considering a Norvane for my tiller steered CS27. It seems a good fit as it looks well designed and engineered. Also its weight is much less than a Monitor which I think is a better choice for a smaller boat like mine. The price is a bit less as well.
__________________
Brian
Living aboard in Victoria Harbour
Reply With Quote Share with Facebook
  #34  
Old 01-08-2012
smurphny's Avatar
Over Hill Sailing Club
 
Join Date: Feb 2009
Location: Adirondacks NY
Posts: 2,779
Thanks: 54
Thanked 59 Times in 57 Posts
Rep Power: 6
smurphny is on a distinguished road
Price was surely a factor in choosing the Norvane. It was considerably cheaper than some of the others but had good reviews from folks who had one. The casting work is solid stainless and there are no major weaknesses or corrosion points that I can see. I did have to build a longer main tube mount but that was no big deal. Norvane had all the specs for my boat so there was no guesswork. Everything fit well. These ARE heavy and put quite a lot of additional weight in a bad place, cantilevered out over the stern as they are. Keeping the bow down/mast raked forward a bit is desirable in these full keel/large overhang hulls so an equal weight needs to be distributed forward to trim the ship.

The reason for the longer main tube mount was that the counterweight wound up hitting the rail with the standard mount they sent. I could have raised the whole thing or extended the main mount which is the way I went. This something to think about when planning the mounting and cutting the tubes to length.
__________________
Alberg 35: With a philosophical flourish Cato throws himself upon his sword; I quietly take to the ship.

Last edited by smurphny; 01-08-2012 at 12:09 AM.
Reply With Quote Share with Facebook
  #35  
Old 01-08-2012
mitiempo's Avatar
Senior Member
 
Join Date: Sep 2008
Location: Victoria B.C. Canada
Posts: 7,057
Thanks: 0
Thanked 68 Times in 59 Posts
Rep Power: 7
mitiempo will become famous soon enough mitiempo will become famous soon enough
I think most windvanes require a custom mount on many boats. My boat is a fin keel design with an outboard rudder so I have to plan around that. I don't expect to have to rake the mast forward. While it is weight in really the wrong place it is necessary and the Norvane weighs a lot less than many vanes.
Attached Thumbnails
Help me build a windvane-2.jpg  
__________________
Brian
Living aboard in Victoria Harbour
Reply With Quote Share with Facebook
Reply

Tags
boat project , build , diy , self steerring , windvane


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
Atoms Windvane hwlovett Gear & Maintenance 9 10-04-2011 02:45 PM
Windvane Self Steering Ronbye Gear & Maintenance 9 10-29-2010 06:22 AM
Does an autopilot need a windvane? akin_alan Gear & Maintenance 7 04-03-2010 08:13 AM
Windvane for Autohelm 800 tospappy Gear & Maintenance 0 11-13-2003 03:13 PM
windvane Colm1 Gear & Maintenance 0 01-15-2002 04:41 PM


All times are GMT -4. The time now is 11:04 AM.

Add to My Yahoo!         
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, 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.