Sabre 38 Prop Pitch - SailNet Community
 
LinkBack Thread Tools
post #1 of 9 Old 05-31-2008 Thread Starter
Senior Member
 
Sabreman's Avatar
 
Join Date: Sep 2006
Location: Yeocomico River, VA
Posts: 1,643
Thanks: 3
Thanked 18 Times in 15 Posts
Rep Power: 10
   
Sabre 38 Prop Pitch

This may sound off the wall, but here goes.

I'm trying to get a PHRF rating for Victoria (the boat, not the wife), and the application form asks for a number of measurements for the fixed prop credit. I was able to estimate the exposure aft of the keel (~8'), the length of the exposed shaft (~26") and the prop size (14", I think). I have no idea as to the answer for the final question - pitch. Without diving under the boat and scraping off a bunch of paint to try and see the pitch stamped on the prop, is there a database of standard prop sizes installed for various manufacturers? Or conversely, with a 14" 2 bladed prop @ 2500 RPM, I do about 6 kts can the pitch be determined from these variables?

Thanks for the help

Sabre 38 "Victoria"
Sabreman is offline  
Quote Quick Reply Share with Facebook
Sponsored Links
Advertisement
 
post #2 of 9 Old 05-31-2008
Senior Member
 
artbyjody's Avatar
 
Join Date: Jan 2008
Location: Bellingham, PNW
Posts: 3,146
Thanks: 0
Thanked 1 Time in 1 Post
Rep Power: 11
       
Maybe this link will help?

Propeller Calculator / Prop Calculator

or

continuousWave.com: Whaler: Reference: Propeller Calculator

-- Jody

S/V "
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
" -
1983, Barberis Show 38! or
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.



To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.







artbyjody is offline  
Quote Quick Reply Share with Facebook
post #3 of 9 Old 05-31-2008
Senior Member
 
JimsCAL's Avatar
 
Join Date: May 2007
Location: Glen Cove, NY
Posts: 2,696
Thanks: 2
Thanked 60 Times in 55 Posts
Rep Power: 9
 
I would guess the pitch would be between 10 and 12 inches.
JimsCAL is offline  
Quote Quick Reply Share with Facebook
post #4 of 9 Old 05-31-2008
Senior Member
 
kd3pc's Avatar
 
Join Date: Oct 2006
Location: Callao, VA
Posts: 1,382
Thanks: 0
Thanked 10 Times in 10 Posts
Rep Power: 9
 
you may want to contact Glenn at Sabre...he can give you an idea and maybe an exact answer.

all the best, and the 38 is a great boat.

dave
kd3pc is offline  
Quote Quick Reply Share with Facebook
post #5 of 9 Old 05-31-2008 Thread Starter
Senior Member
 
Sabreman's Avatar
 
Join Date: Sep 2006
Location: Yeocomico River, VA
Posts: 1,643
Thanks: 3
Thanked 18 Times in 15 Posts
Rep Power: 10
   
All- Thanks. I think that the suggestion about contacting Sabre is one that I will take. Don't know why I didn't think of it. I've called them a number of times over the years and they've been great.

Unfortunately, I can't use the calculators. There are too many variables that I don't know. To be honest, I've never paid much attention to prop size and diameter. Sabre spent the time to spec it out so it's good enough for me. I mostly make sure that the prop is free of knicks and is reconditioned every 10 years or so.

Thanks.

Sabre 38 "Victoria"
Sabreman is offline  
Quote Quick Reply Share with Facebook
post #6 of 9 Old 05-31-2008
Junior Member
 
markdigi's Avatar
 
Join Date: Aug 2000
Location: Beverly, MA
Posts: 25
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
 
Sabreman,

I'm interested in hearing your final PHRF rating. We ended up with a 141 this year as opposed to a 144 last year and nothing changed on our boat.
Last year I believe they started us with a Mk I base instead of Mk II. I pointed this out in our application this year believing that our handicap would increase based upon this discrepency but it decreased.

We also raced against a couple of Mk II's in the Figawi last weekend. One of them had a higher handicap and didn't have a roller furling main as we do.

We have a two bladed fixed prop, roller fuling main and headsail and no racing sails. Our genny is < 135%. The only way I believe another Mk II could have a higher handicap than us is if they had a 3 bladed fixed prop. I plan on asking for clarification from our "handicaper" so that we're correct and consistent going forward.

Mark
markdigi is offline  
Quote Quick Reply Share with Facebook
post #7 of 9 Old 06-01-2008 Thread Starter
Senior Member
 
Sabreman's Avatar
 
Join Date: Sep 2006
Location: Yeocomico River, VA
Posts: 1,643
Thanks: 3
Thanked 18 Times in 15 Posts
Rep Power: 10
   
Mark - I was kind of hoping that we'd have something like 123, but who knows. Our main is old but full battened - definitely not a racing sail. The jib is 140% and old but Sailcare refurbished.


Your avatar is nice. Great boat.

Mark

Sabre 38 "Victoria"
Sabreman is offline  
Quote Quick Reply Share with Facebook
post #8 of 9 Old 06-03-2008 Thread Starter
Senior Member
 
Sabreman's Avatar
 
Join Date: Sep 2006
Location: Yeocomico River, VA
Posts: 1,643
Thanks: 3
Thanked 18 Times in 15 Posts
Rep Power: 10
   
All - FYI. According to Glen at Sabre, the prop is 16" dia x 12"pitch

Thanks to kd3pc for the suggestion to contact Sabre. I can always count on Sailnet for practical suggestions.

Sabre 38 "Victoria"
Sabreman is offline  
Quote Quick Reply Share with Facebook
post #9 of 9 Old 06-10-2008 Thread Starter
Senior Member
 
Sabreman's Avatar
 
Join Date: Sep 2006
Location: Yeocomico River, VA
Posts: 1,643
Thanks: 3
Thanked 18 Times in 15 Posts
Rep Power: 10
   
markdigi - I received our rating in the mail today. It's 144.

Sabre 38 "Victoria"
Sabreman is offline  
Quote Quick Reply Share with Facebook
Reply

Quick Reply
Message:
Options

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:
OR

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
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Forum Replies Last Post
Folding Propeller Problems slj145c Gear & Maintenance 4 05-21-2008 08:39 AM
Max Prop tfields Gear & Maintenance 14 02-03-2008 02:01 AM
Changing prop underwater trantor12020 Gear & Maintenance 16 03-03-2007 12:02 PM
Choosing the Right Propeller Sue & Larry Gear and Maintenance Articles 0 02-04-2003 07:00 PM
Choosing a Prop Sue & Larry Gear and Maintenance Articles 0 12-24-2001 07:00 PM

Posting Rules  
You may post new threads
You may 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 On
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome