The Christie suspension is a suspension system developed by Walter Christie for his tank designs. It allowed considerably longer movement than conventional leaf spring systems then in common use, which allowed his tanks to have considerably greater cross-country speed and a lower profile. The system was first introduced on his M1928 design, and used on all of his designs until his death in 1942.
Christie advocated the use of lightweight tanks with long range and high speed, designed to penetrate enemy lines and attack their inf ...
The situation for naval fire control was more complex because of the need to control the firing of several guns at once. In naval engagments both the firing guns and target are moving, and the variables are compounded by the greater distances and times involved. Corrections are made for temperature, rate of change of range with additional modifications to the firing solution based upon the observation of preceeding shots.
Rudimentary naval fire control systems were first developed around the time of World War I. ...
