Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 30-01-2010, 18:30   #1
Registered User

Join Date: Jul 2006
Posts: 19
Question CDI Perfect Pitch Urethane Propellers

I have a Lagoon 42 ft TPI catamaran which I have repowered with Yanmar 3Ym30 engines. I need to reprop ar my 15x9 Campbell sailor 2 blade props are under propped.

I am interested in the CDI perfect pitch props made of urethane as the flex to a different pitch with different loading conditions.

Does anyone have any experience with these props?

Thanks
Tony
__________________
tfsilver is offline   Reply With Quote
Old 08-03-2011, 17:59   #2
Registered User

Join Date: Mar 2011
Posts: 2
Re: CDI Perfect Pitch Urethane Propellers

i have a 15 X 11 perfect pitch propeller from performance propellers . yanmar 2GM20F diesel. kanzaki 2.62 tranmission. nimble 30 express monohull . works very well. 6.9 kn @ 3600rpm cruises 5.4 kn @ 2250 rpm.
__________________
sailsanimble is offline   Reply With Quote
Old 11-12-2012, 06:48   #3
cruiser

Join Date: Aug 2011
Location: Tampa Bay area
Boat: Hunter 31'
Posts: 5,731
Re: CDI Perfect Pitch Urethane Propellers

Not spending much time here any more, but I wanted to report my experience with my Perfect Pitch propeller. I put it on my boat a year ago August when I replaced my engine.

Yesterday I had to move my boat for 3 1/2 hours in a narrow window between fog and storms. The fog lifted early and the storms came late but I couldn't count on that. It was a good test of the prop because the hull and prop had just been cleaned the day before. I have a Hunter '31 (1983) with fin keel. It is a fast boat.

In calm waters with no current, wind or significant waves, at redline the boat moved up to 6.8 knots. At 3000 rpm, the boat moved at a steady 6.0 - 6.1. This dropped off as the weather started to build (wind only) and the water in the mouth of Tampa Bay got choppier, but a lot of my travel was in sheltered waters. It allowed me to get my boat home quickly and efficiently.

I can -- literally -- parallel park that boat at a one-sided dock (of course, again in low winds and no current). I had to do exactly that the other night, and ... she did it. It took more maneuvers than a car would, but nevertheless ... (I got a 2-blade, not a 3-blade).

Perfect Pitch propellers are considerably cheaper than other props. They are not manufactured by CDI -- they are their own company -- but CDI stocks them. The sizing/pitch chart was apparently very accurate, since that prop performs so well.
__________________
Rakuflames is offline   Reply With Quote
Reply

Tags
cdi, perfect pitch, urethane, propeller

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Perfect Boat or Perfect Place? Hanna&Chris General Sailing Forum 22 08-10-2009 20:27
Variable (Controllable) Pitch Propellers fishwife Powered Boats 6 06-09-2009 23:19
parts for my cdi reefer 1 furler blue noser Classifieds Archive 0 20-03-2009 14:28
March 5th - Rock and Roll, The Beat Generation, Perfect Pitch and swearing skipgundlach General Sailing Forum 6 07-04-2008 15:16
CDI question shellback Deck hardware: Rigging, Sails & Hoisting 10 12-06-2007 04:43



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 17:33.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.