Calculating Displacement Ratios
<HTML><!-- eWebEditPro 18.104.22.168 --><P>When calculating Displacement/Length ratios and Sail Area/Displacement ratios, I can never come up with the answers that appear in articles and boat builders literature. Can you help?<BR><BR>Vick.</P><B><P>Tom Wood responds:</P></B><P>Actually, we've already published several articles that explain those formulas, for example, Beth Leonard's <FONT color=#000000><A class=articlelink href="http://www.sailnet.com/forums/showthread.php?threadid=19382">Comparing Cruising Boats</A> and Randy Harman's <A class=articlelink href="http://www.sailnet.com/forums/showthread.php?threadid=20371">Choosing the Right Boat</A>.</FONT></P><P>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.</P><P><TABLE cellSpacing=0 cellPadding=0 align=center border=0><TBODY><TR><TD height=8></TD></TR><TR><TD vAlign=center><A href="http://www.sailnet.com/store/item.cfm?pid=6637"><IMG height=75 src="http://www.sailnet.com/images/content/authors/wood/101500_adtw_choosing.gif" width=320 border=0></A></TD></TR></TBODY></TABLE><P></P></HTML>
|All times are GMT -4. The time now is 10:08 PM.|
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
User Alert System provided by Advanced User Tagging v3.1.0 (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
(c) Marine.com LLC 2000-2012