Ton is derived from tun, which was a wine cask. The number of tuns a ship could carry was a measure of its capacity. Thus tonnage is a volume measure, not a weight measure, and for many years the standard ton was taken as 100 cubic feet. Two 'tonnages' are of interest to the international community - one to represent the overall size of a vessel and one to represent its carrying capacity. The former can be regarded as a measure of the difficulty of handling and berthing and the latter of earning ability. Because of differences between systems adopted by different countries, in making allowances say for machinery spaces, etc., there were many anomalies. Sister ships could have different tonnages merely because they flew different flags. It was to remove these anomalies and establish an internationally approved system that the International Convention on Tonnage Measurement of Ships, was adopted in 1969. It came into force in 1982 and became fully operative

How To Have A Perfect Boating Experience

How To Have A Perfect Boating Experience

Lets start by identifying what exactly certain boats are. Sometimes the terminology can get lost on beginners, so well look at some of the most common boats and what theyre called. These boats are exactly what the name implies. They are meant to be used for fishing. Most fishing boats are powered by outboard motors, and many also have a trolling motor mounted on the bow. Bass boats can be made of aluminium or fibreglass.

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