Folding vs Feathering Prop - views requested - 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? 
  #31  
Old 01-10-2010
dantaden's Avatar
Sailor & Member
 
Join Date: Mar 2009
Location: Toronto
Posts: 27
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
dantaden is on a distinguished road
As most think folding props are designed for racers - this is not necessarily true. Now, with more cruising in mind, I see the benefit of a folder, getting to destination quicker under sail, leaving less mileage for motoring.

Valiente, just curious why you decided on a 4 blade feathering and not a 3 or 4 blade folder ?

Back from the Toronto boat show and still the Gori 3 blade folder w/overdrive is top of mind for my 48' Celestial (34,000lbs).

Please advise and share comments.
__________________
Dan, Celestial 48'
Toronto, sailing Lake Ontario & Thousand Islands
Reply With Quote Quick reply to this message Share with Facebook
  #32  
Old 01-10-2010
FlyinNOE's Avatar
Junior Member
 
Join Date: Nov 2008
Location: Dupont Washington
Posts: 11
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
FlyinNOE is on a distinguished road
Folders

Many previous designs of folders allowed marine life to foul the working of the simple (and fairly open) folder. This meant that they were only really a viable choice for guys who were very maintenance conscious or didn't keep their boat in the water (like racers).

The Flexofold's design significantly reduces that likelihood (as does many of the newer other brands).

I bought the folder because of the lack of maintenance required, greater reduction in drag and the great reviews it had been given along with some very good customer service.

The benefit had been our ability to sail when previously I would have motored. The Puget Sound had very weak winds in the summer months.

Brian-
Reply With Quote Quick reply to this message Share with Facebook
  #33  
Old 01-11-2010
PCP's Avatar
PCP PCP is offline
Senior Member
 
Join Date: Dec 2004
Location: Portugal, West Coast
Posts: 16,193
Thanks: 21
Thanked 100 Times in 83 Posts
Rep Power: 11
PCP will become famous soon enough
I believe that the Gori with overdrive and the Autoprop have some advantages over the others in what concerns cruising...if their prices are not a problem.

I failed to mention an useful feature on the Autoprop propeller. If you see a rope too late to stop or change direction and run over it, if you have time to shift to neutral, probably you don't get stuck (the blades move freely and avoid getting caught). It seems a small thing, but saved my day at least three times in the last 5 years.

Last edited by PCP; 01-11-2010 at 01:36 PM.
Reply With Quote Quick reply to this message Share with Facebook
  #34  
Old 01-11-2010
jrd22's Avatar
Courtney the Dancer
 
Join Date: Nov 2000
Location: San Juan Islands., WA, USA
Posts: 3,844
Thanks: 3
Thanked 18 Times in 18 Posts
Rep Power: 15
jrd22 will become famous soon enough
The Autoprop doesn't have any yearly maintenance except to change the zinc on the end as far as I know. Ours is pretty old, maybe the new ones require something, we haven't had to do anything other than the zinc in over 15 years.
__________________
John
SV Laurie Anne

1988 Brewer 40 Pilothouse


Last edited by jrd22; 01-11-2010 at 03:12 PM.
Reply With Quote Quick reply to this message Share with Facebook
  #35  
Old 01-11-2010
October Moon B43
 
Join Date: Apr 2009
Location: SE Pennsylvania
Posts: 400
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 6
MJBrown is on a distinguished road
PCP, I only wish the Autoprop would release a line wrapped around it as easy as you stated. Only had it happen once, and it was my own fault, but it took 2-3hours in a swift current to cut it all off.

jrd22 As for annual service ours had to be greased at haul out as well as a new zinc. There were two small screws on each hub that you removed. I one you inserted the grease fitting, the other was the exit hole. I'm amazed that you've gone 15 yrs without a service on it. But hey if it's not broken don't fix it.
Reply With Quote Quick reply to this message Share with Facebook
  #36  
Old 01-11-2010
PCP's Avatar
PCP PCP is offline
Senior Member
 
Join Date: Dec 2004
Location: Portugal, West Coast
Posts: 16,193
Thanks: 21
Thanked 100 Times in 83 Posts
Rep Power: 11
PCP will become famous soon enough
Quote:
Originally Posted by MJBrown View Post
PCP, I only wish the Autoprop would release a line wrapped around it as easy as you stated. Only had it happen once, and it was my own fault, but it took 2-3hours in a swift current to cut it all off.
I think you have misunderstood me, or perhaps I was not clear. I had also got caught by a cable... once...in a marina one of those in the med that have cables everywhere and no space to steer (they use big inflatable boats to put the boats on the spot).

I was not talking of getting lose after being tangled up, but about avoiding being caught, putting the engine in neutral. If you do that, before hitting the rope, with an autoprop you got a good chance of getting away free.... or I am a very lucky guy
Reply With Quote Quick reply to this message Share with Facebook
  #37  
Old 01-11-2010
christyleigh's Avatar
Senior Member
 
Join Date: Dec 2001
Location: North Brookfield, Mass.
Posts: 935
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 14
christyleigh is on a distinguished road
Quote:
Originally Posted by jrd22 View Post
The Autoprop doesn't have any yearly maintenance except to change the zinc on the end as far as I know. Ours is pretty old, maybe the new ones require something, we haven't had to anything other than the zinc in over 15 years.
I don't know what year they changed from water lube ? to grease lube but I do know that my first one purchased around 2002 or 2003 required grease. My current one that came with my used boat also requires grease and I think that was installed in the early 2000's also.
A friend of mine had one from back in '96 or so and I believe it did not require grease. 15 years is a longggg..... time...... I would consider pulling it and having the bearings checked if I were you. You don't want to become one of those "blades falling off" harpies because you expected too much of a bearing race Edit.... I don't remember Exactly how long or how bad the issue was but that friend with the 96ish non-greased had 'extra' play develop in a 'few' years and had it adjusted for that 'slop'. Not scientific I know..... but I hope you understand my concern.
__________________
Stan
'Christy Leigh'
NC 331
Wickford/Narragansett Bay RI

Last edited by christyleigh; 01-11-2010 at 03:49 PM.
Reply With Quote Quick reply to this message Share with Facebook
  #38  
Old 01-11-2010
October Moon B43
 
Join Date: Apr 2009
Location: SE Pennsylvania
Posts: 400
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 6
MJBrown is on a distinguished road
PCP yes I did misunderstand your comment Now that you have clarified I totally agree the technique works quite well. I have done the same thing many times when moving through all the crab pots on Cheasapeake Bay.
Reply With Quote Quick reply to this message Share with Facebook
  #39  
Old 01-11-2010
MC1 MC1 is offline
Senior Member
 
Join Date: Jan 2008
Location: Lake Ontario
Posts: 277
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 7
MC1 is on a distinguished road
For cruising, if one is concerned about performance in reverse and/or prop-walk issues, wouldn't a feathering prop be preferred over a folder? When reversing out of a slip, I've read the folders are worse than 2-blade fixed props even, is this the case?

Concerning drag, I don't see why a folder would be much better (if any) than a feathered prop; is there independent data to suggest otherwise? I can't imagine any difference in drag between a good feathering prop and a good folding prop being significant for anything but the most light displacement racing boats being driven at the very top of their performance curve. This doesn't seem relevant to medium / heavy displacement cruisers. Thoughts?
Reply With Quote Quick reply to this message Share with Facebook
  #40  
Old 01-11-2010
FlyinNOE's Avatar
Junior Member
 
Join Date: Nov 2008
Location: Dupont Washington
Posts: 11
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
FlyinNOE is on a distinguished road
Quote:
Originally Posted by MC1 View Post
For cruising, if one is concerned about performance in reverse and/or prop-walk issues, wouldn't a feathering prop be preferred over a folder? When reversing out of a slip, I've read the folders are worse than 2-blade fixed props even, is this the case?
As far as prop walk is concerned my folder has less than the fixed three blade prop that was on the boat.

As for drag it's probably a minimul difference for anyone cruising, I agree. There is independant data out there if you search for it. Truth is a .1 of a knot is not noticable by most cruisers.

Brian-
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
Folding vs. Feathering Prop? MJKahn Hunter 4 08-06-2007 10:54 AM
Hydralign Feathering Prop BELLATRIX1965 Gear & Maintenance 2 01-01-2007 10:25 PM
Zincs for Sail Prop feathering prop jrbarn Gear & Maintenance 4 09-20-2006 11:40 AM
Choosing the Right Propeller Sue & Larry Gear and Maintenance Articles 0 02-04-2003 08:00 PM
Feathering and folding props FredSprigman Gear & Maintenance 3 09-08-2001 07:21 PM


All times are GMT -4. The time now is 04:18 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.