30MKIII folding prop - 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 > Boat Builders Row > Newport
 Not a Member? 


Reply
 
LinkBack Thread Tools
  #1  
Old 06-08-2008
Junior Member
 
Join Date: Jun 2008
Posts: 4
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
RussLeighton is on a distinguished road
30MKIII folding prop

Has anyone installed a martec or other folding prop on their N30 with the Universal M25 diesel?
Also has anyone installed a backstay adjuster on their N30?
Reply With Quote Quick reply to this message Share with Facebook
  #2  
Old 08-20-2008
Junior Member
 
Join Date: Sep 2006
Location: Anchorage Alaska
Posts: 2
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
Captaingriz is on a distinguished road
30MKIII folding prop

Back when I bought my N33PH I re-installed a 2 blade Maxi-prop in place of a 3 bladed fixed prop that a previous owner and swapped out. I love the Maxi-prop. I followed the manual setting the pitch for something like 11.5 pitch if I remember (I'd have to look at my notes from spring 2007). I run my M35 up to 2200 rpm and motor along at 5.5 to 6kts. If I pushed it to 2500 rpm I could do 6.5 kts but why?

-Matt Mannhardt
S/V Arctic Enchantress N33PH
Seward, AK
Reply With Quote Quick reply to this message Share with Facebook
  #3  
Old 08-21-2008
KeelHaulin's Avatar
STARBOARD!!
 
Join Date: Mar 2006
Posts: 1,662
Thanks: 0
Thanked 2 Times in 2 Posts
Rep Power: 10
KeelHaulin will become famous soon enough KeelHaulin will become famous soon enough
The difference in RPM is only ~300; is your gearbox 1:1 or 2:1? From no engagement (stopped) to 2200 you are going ~5.5-6; with 300 more RPM at 1:1 it should only make a ~10% difference in prop thrust or boat speed I would think. That's pretty close to 1/2 kt in speed.
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 Propeller Problems slj145c Gear & Maintenance 4 05-21-2008 09:39 AM
Gori Two-blade Folding Prop max-on Gear & Maintenance 6 05-07-2008 11:22 PM
Folding prop on 1975 Hunter 30 dcbp33 Hunter 2 03-03-2008 06:27 PM
Fixed vs Folding Prop doons60 Gear & Maintenance 11 07-29-2007 09:27 PM
Choosing the Right Propeller Sue & Larry Gear and Maintenance Articles 0 02-04-2003 08:00 PM


All times are GMT -4. The time now is 12:12 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.