Calculating Displacement Ratios - 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 > Contributing Authors > Buying a Boat Articles
 Not a Member? 


Closed Thread
 
LinkBack Thread Tools
  #1  
Old 10-14-2000
Contributing Authors
 
Join Date: Jan 2000
Posts: 266
Thanks: 0
Thanked 6 Times in 4 Posts
Rep Power: 15
Tom Wood is on a distinguished road
Calculating Displacement Ratios

When calculating Displacement/Length ratios and Sail Area/Displacement ratios, I can never come up with the answers that appear in articles and boat builder’s literature. Can you help?

Vick.

Tom Wood responds:

Actually, we've already published several articles that explain those formulas, for example, Beth Leonard's Comparing Cruising Boats and Randy Harman's Choosing the Right Boat.

The trouble most people run into when running these numbers is: (1) not using the correct 2,240 pounds for a long ton, (2) not using the correct 64 pounds for the displacement of one cubic foot of seawater, and (3) difficulties calculating displacement to the 2/3 power (the cubic root of displacement in cubic feet, squared), which usually takes either a high-powered scientific calculator or a lot of trial and error.

Closed Thread


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



All times are GMT -4. The time now is 11:20 PM.

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