Cruisers Forum

Join CruisersForum Today

Thread Tools Rate Thread Display Modes
Old 18-01-2009, 09:09   #16

Join Date: Nov 2008
Posts: 506
The short answer would be yes because transom shape is just a reflection of the sectional shape aft of the boat. The transom shape is not independant of the distribution of volume aft.

bob perry is offline   Reply With Quote
Old 18-01-2009, 09:13   #17
Registered User

Join Date: Dec 2008
Location: ontario canada
Boat: grampian 26
Posts: 1,743
transom shape

keeping in mind your answer to my question. What is the ideal transom shape to minimize boarding seas?

perchance is offline   Reply With Quote
Old 19-01-2009, 06:21   #18

Join Date: Nov 2008
Posts: 506
I'm not sure you are getting the "big picture" or I am not being sufficiently clear.

Try this: Stop thinking of transom shape as an independant shape entity on the hull. The transom shape is a pure reflection of the boat's sectional shape aft.
Changing the transom shape changes the hull shape. You can vary the rake angle from positive to negative. You can vary the radius of the transom. But the hull shape will remain the same.

You design a hull carrying the stern well beyond the aft end of LOA.
You cut a transom thru that extended shape using whatever angle and radius suits your eye. The exact location of the cut may depend upon a number of factors, i.e. rating rules, LOA target and actual sectional shape.

The famous British designer Douglas Phillips-Birt once said, "If you are being overtaken by a breaking wave four feet higher than you transom, then you are going to get wet regardless of the shape of your stern." Or something quite like that.

bob perry is offline   Reply With Quote

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
Are Double-Enders the Sexiest Monohull Design ? Keegan Monohull Sailboats 91 11-11-2011 04:44
Outboard Bracket Question . . . Nateman Construction, Maintenance & Refit 13 26-07-2011 21:35
GPS Antenna Flush on Reverse Transom ? akio.kanemoto Marine Electronics 29 22-07-2011 19:08
For Sale: Garmin Transom Mount Depth and Temperature Transducer Undine Classifieds Archive 0 02-07-2011 15:09

Our Communities

Our communities encompass many different hobbies and interests, but each one is built on friendly, intelligent membership.

» More about our Communities

Automotive Communities

Our Automotive communities encompass many different makes and models. From U.S. domestics to European Saloons.

» More about our Automotive Communities

Marine Communities

Our Marine websites focus on Cruising and Sailing Vessels, including forums and the largest cruising Wiki project on the web today.

» More about our Marine Communities

Copyright 2002-2015 Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 02:43.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2016, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2016, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.