The Washington Naval Treaty, also known as the Five-Power Treaty, was signed during 1922 among the major nations that had won World War I, which agreed to prevent an arms race by limiting naval construction. It was negotiated at the Washington Naval Conference, held in Washington, D.C., from November 1921 to February 1922, and it was signed by the governments of the United Kingdom, the United States, France, Italy, and Japan. It limited the construction of battleships, battlecruisers and aircraft carriers by the signatories. Numbers of other categories of warships, including cruisers, destroyers and submarines, were not limited by the treaty, but those ships were limited to 10,000 tons displacement each.
Later naval arms limitation conferences sought additional limitations of warship building. The terms of the Washington treaty were modified by the London Naval Treaty of 1930 and the Second London Naval Treaty of 1936. By the mid-1930s, Japan and Italy renounced the treaties, while Germany renounced the Treaty of Versailles which had limited its navy. Naval arms limitation became increasingly difficult for the other signatories.
https://en.wikipedia.org/wiki/Washington_Naval_Treaty .
Washington Naval Treaty, Five-Power Treaty, 1922
London Naval Treaty of 1930
Second London Naval Treaty of 1936
Washington Naval Treaty, Five-Power Treaty, 1922
London Naval Treaty of 1930
Second London Naval Treaty of 1936
Naval Impact of American Isolationism | Interbellum | 1933 3/3 > .
1930 London Naval Treaty > .
30-4-22 London Naval Treaty Signed ..
HMS Belfast; London Naval Treaty, 1930 ..
The displacement or displacement tonnage of a ship is its weight based on the amount of water its hull displaces at varying loads. It is measured indirectly using Archimedes' principle by first calculating the volume of water displaced by the ship then converting that value into weight displaced. Traditionally, various measurement rules have been in use, giving various measures in long tons. Today, metric tonnes are more used.
Definitions: Ship displacement varies by a vessel's degree of load, from its empty weight as designed (known as "Lightweight tonnage") to its maximum load. Numerous specific terms are used to describe varying levels of load and trim. Ship displacement should not be confused with measurements of volume or capacity typically used for commercial vessels, such as net tonnage, gross tonnage, or deadweight tonnage.
https://en.wikipedia.org/wiki/Displacement_(ship) .
