Estimating sailboat length - 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 > General Interest > General Discussion (sailing related)
 Not a Member? 


Reply
 
LinkBack Thread Tools
  #1  
Old 04-28-2008
JSL3's Avatar
<----- thinking of this
 
Join Date: Jun 2007
Location: Chesapeake Bay, South River
Posts: 188
Thanks: 1
Thanked 1 Time in 1 Post
Rep Power: 8
JSL3 is on a distinguished road
Estimating sailboat length

Assuming the boat you are sailing by has no number on its hull or sail to indicate its length.
Is there a simple way (rule of thumb or a trick) to estimate/judge the length of a sailboat on the water?
__________________
~Jim
Ramble On
1986 Pearson 28-2
Reply With Quote Quick reply to this message Share with Facebook
  #2  
Old 04-28-2008
chucklesR's Avatar
Senior Member
 
Join Date: Sep 2007
Location: Pasadena Md - Magothy side
Posts: 5,979
Thanks: 10
Thanked 31 Times in 31 Posts
Rep Power: 10
chucklesR is a jewel in the rough chucklesR is a jewel in the rough chucklesR is a jewel in the rough
If you can see the people in the cockpit, use their height to estimate 6 ft, which establishes a scale from which you can estimate within 2-3 feet.
Reply With Quote Quick reply to this message Share with Facebook
  #3  
Old 04-28-2008
DrB DrB is offline
Senior Member
 
Join Date: Mar 2007
Location: New England
Posts: 966
Thanks: 0
Thanked 7 Times in 7 Posts
Rep Power: 8
DrB will become famous soon enough
Do you mean the one you are on or one that you mabe looking at on the water a a few hundred feet from you? If one you are on, lots of ways: rope length, walk the deck, etc.

One the water is more tricky. You could guess that most sailboats moderate sized sailboats 26 - 45 ft in length have about a 7.5 to 8.5 foot cockpit. From there , guesstimate how many cockpit lengths the boat is and you should be within 2 or 3 feet. This is very general.

Other tell-tales. Ketches and yawls are typically bigger than 34 feet. Same thing with Cutters. If you see one of those, start from the 34+ range.

DrB
Reply With Quote Quick reply to this message Share with Facebook
  #4  
Old 04-28-2008
.
 
Join Date: Nov 2006
Posts: 10,851
Thanks: 0
Thanked 4 Times in 2 Posts
Rep Power: 13
Giulietta is just really nice Giulietta is just really nice Giulietta is just really nice Giulietta is just really nice Giulietta is just really nice
Quote:
Originally Posted by JSL3 View Post
Assuming the boat you are sailing by has no number on its hull or sail to indicate its length.
Is there a simple way (rule of thumb or a trick) to estimate/judge the length of a sailboat on the water?
Off course...there is....

The lenght of the boat in question is equal to the distance from the bow to the stern...

Then what you do is you go by and ask really loud:

HOW LONG's YOU'R BOAT????

If you're inside that boat...and it's not yours, just ask the owner
Reply With Quote Quick reply to this message Share with Facebook
  #5  
Old 04-28-2008
TrueBlue's Avatar
SeŮor Member
 
Join Date: Oct 2004
Location: Narragansett Bay
Posts: 4,853
Thanks: 0
Thanked 1 Time in 1 Post
Rep Power: 13
TrueBlue is a jewel in the rough TrueBlue is a jewel in the rough TrueBlue is a jewel in the rough
Quote:
Originally Posted by chucklesR View Post
If you can see the people in the cockpit, use their height to estimate 6 ft, which establishes a scale from which you can estimate within 2-3 feet.
That's essentially what I do for boat's under way. Can't always use a person's height as a sale of measure, unless crew is standing upright on deck. Head to waist for normal adults is about 2.5 ft, 3.5 ft for deck to waist. Or - about 7 adult heads equals 6 ft . . . 5 heads for narcissistic sailors .

After a few years of studying various boats and their known freeboards, you get a knack for it, with or without people nearby.
__________________
True Blue . . .
sold the Nauticat
Reply With Quote Quick reply to this message Share with Facebook
  #6  
Old 04-28-2008
.
 
Join Date: Nov 2006
Posts: 10,851
Thanks: 0
Thanked 4 Times in 2 Posts
Rep Power: 13
Giulietta is just really nice Giulietta is just really nice Giulietta is just really nice Giulietta is just really nice Giulietta is just really nice
I normally look at a boat and know what lenght it is...unless its a rare boat
Reply With Quote Quick reply to this message Share with Facebook
  #7  
Old 04-28-2008
JSL3's Avatar
<----- thinking of this
 
Join Date: Jun 2007
Location: Chesapeake Bay, South River
Posts: 188
Thanks: 1
Thanked 1 Time in 1 Post
Rep Power: 8
JSL3 is on a distinguished road
Quote:
Originally Posted by Giulietta View Post
I normally look at a boat and know what lenght it is...unless its a rare boat
Clearly we have a solution. I could just have Giu ride around with me so I can ask him and I'll be golden.
__________________
~Jim
Ramble On
1986 Pearson 28-2
Reply With Quote Quick reply to this message Share with Facebook
  #8  
Old 04-28-2008
JSL3's Avatar
<----- thinking of this
 
Join Date: Jun 2007
Location: Chesapeake Bay, South River
Posts: 188
Thanks: 1
Thanked 1 Time in 1 Post
Rep Power: 8
JSL3 is on a distinguished road
I like the suggestion by Chuckles. How about spreaders, are they ever a clue?
__________________
~Jim
Ramble On
1986 Pearson 28-2
Reply With Quote Quick reply to this message Share with Facebook
  #9  
Old 04-28-2008
.
 
Join Date: Nov 2006
Posts: 10,851
Thanks: 0
Thanked 4 Times in 2 Posts
Rep Power: 13
Giulietta is just really nice Giulietta is just really nice Giulietta is just really nice Giulietta is just really nice Giulietta is just really nice
Quote:
Originally Posted by JSL3 View Post
Clearly we have a solution. I could just have Giu ride around with me so I can ask him and I'll be golden.
$185 per hour, plus expenses. Min 8 hours per day, max 12 hours.

Top class Rental Car, Hilton Hotel or Marriot, Business class tickets.

Payment 15 days net.


Reply With Quote Quick reply to this message Share with Facebook
  #10  
Old 04-28-2008
Senior Member
 
Join Date: Jan 2005
Posts: 103
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 10
wescarroll is on a distinguished road
I just kind of look at it and if it looks say... 30 feet long I figure it is somewhere between 25 and 35 feet long. If it looks longer I add a couple of feet to my estimate, shorter I subtract a couple of feet. You may feel free to use my formula if you wish, it has served me well.
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
Sailboat cost vs Powerboats Fishboat Boat Review and Purchase Forum 19 09-28-2010 12:38 PM
1 body washes up as about 100 migrants in sailboat reach Florida - WHDH-TV NewsReader News Feeds 0 03-29-2007 01:15 AM
Coroner: Maine Man Died From Natural Causes During Sailboat Race - WMTW NewsReader News Feeds 0 10-05-2006 12:15 PM
At what length does a sailboat become a yacht? bnoble General Discussion (sailing related) 7 02-03-2003 07:49 AM


All times are GMT -4. The time now is 01:06 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.