Cruisers Forum

Join CruisersForum Today

Thread Tools Rate Thread Display Modes
Old 05-08-2011, 12:42   #1
Registered User

Join Date: Feb 2010
Location: NH
Boat: Tayana 37
Posts: 103
Bob Perry Design Question

My wife and I are looking at double enders or Bob Perry designs. On vacation this summer we met a couple with a Tayana 37 and we were watching their boat on anchor and noticed that it seems to have more movement then our own. With a rounded stern it seemed like the boat was hobby horsing alot. With a flat stern I would assume that helps to stop the boat in that perticular motion. What do others think?


ddsailor25 is offline   Reply With Quote
Old 05-08-2011, 12:46   #2
Moderator Emeritus
hummingway's Avatar

Cruisers Forum Supporter

Join Date: Jan 2010
Location: Gabriola Island & Victoria, British Columbia
Boat: Cooper 416 Honeysuckle
Posts: 6,932
Images: 5
Re: Bob Perry design question

I've never heard that suggested before. I've read that some folks like them because you take on less water when pooped but that otherwise it doesn't make any difference.

“We are the universe contemplating itself” - Carl Sagan

hummingway is offline   Reply With Quote
Old 05-08-2011, 12:55   #3
Registered User
Unicorn Dreams's Avatar

Join Date: Aug 2007
Location: Clear Lake Marine Services - Seabrook, Texas
Boat: Gulfstar, Mark II Ketch, 43'
Posts: 2,359
Re: Bob Perry design question

A double ender IS supposed to be more buoyant in the stern ftom what I've read about them. So it would make some sense.

I may be wrong, I'm no naval engineer.
Formerly Santana
The winds blow true,The skies stay blue,
Everyday is a good day for SAILING!!!!
Unicorn Dreams is offline   Reply With Quote
Old 05-08-2011, 13:00   #4
Registered User

Join Date: May 2009
Location: Vancouver, Wash.
Boat: no longer on my Cabo Rico 38 Sanderling
Posts: 1,794
Send a message via MSN to John A
Re: Bob Perry design question

I don't think the shape of the stern would make any difference while at anchor.

Rather the shape of the hull, the type of keel, the amount of scope, the weight of the boat/displacement, and whatever the current/tide conditions were should be considered.

Jf the conditions were rolly then a heavy displacement full keel would ride calmer than a 8,000 lb Bennie.

If there was a strong current running then the full keel would cause more boat movement than a flatter bottom. l
John A is offline   Reply With Quote
Old 05-08-2011, 13:09   #5
CF Adviser
Moderator Emeritus
TaoJones's Avatar

Cruisers Forum Supporter

Join Date: Dec 2006
Location: Montrose, Colorado
Posts: 9,850
Re: Bob Perry design question

ddsailor25, you can read Bob Perry's own words on this forum if you do a search. For example, here's an interesting thread in which he discusses transom shapes and how they derive from the projection of the hull lines well aft to insure a fair hull:

Transom !

There's plenty more like that in the vast CF database. If you'd like some search help, just ask.

"Your vision becomes clear only when you look into your own heart. Who looks outside, dreams; who looks within, awakens."
Carl Gustav Jung (1875-1961)
TaoJones 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
Polytech Design Autohelm Belts Question lorenzo123 Product or Service Reviews & Evaluations 2 09-08-2011 13:23
New Monohull Design from Schionning Designs Ben-Schionning Commercial Posts 0 23-06-2011 17:25

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 15:04.

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.