30MKIII folding prop - SailNet Community

   Search Sailnet:

 forums  store  

Quick Menu
Boat Reviews  
Search SailNet 
Boat Search (new)

Shop the
SailNet Store
Anchor Locker
Boatbuilding & Repair
Hatches and Portlights
Interior And Galley
Marine Electronics
Other Items
Plumbing and Pumps
Sailing Hardware
Trailer & Watersports
Clearance Items

Advertise Here

Go Back   SailNet Community > Boat Builders Row > Newport
 Not a Member? 

LinkBack Thread Tools
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 Share with Facebook
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 Share with Facebook
Old 08-21-2008
KeelHaulin's Avatar
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 Share with Facebook

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 08:39 AM
Gori Two-blade Folding Prop max-on Gear & Maintenance 6 05-07-2008 10:22 PM
Folding prop on 1975 Hunter 30 dcbp33 Hunter 2 03-03-2008 05:27 PM
Fixed vs Folding Prop doons60 Gear & Maintenance 11 07-29-2007 08:27 PM
Choosing the Right Propeller Sue & Larry Gear and Maintenance Articles 0 02-04-2003 07:00 PM

All times are GMT -4. The time now is 04:14 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.