Template:Displacement/doc

Purpose
To show displacement tonnage, whether expressed in terms of:


 * tonnes (metric tons)
 * long tons
 * unknown kind of tons

in a consistent manner. The first=yes flag can be used to add the words "of displacement" suitable to introduce the concept the first time it is used in an article.

Usage
Specify first=yes to create a verbose description suitable for the first occurrence on a page.