Perfection of pneumatic equilibrator of a cannon

For the pneumatic equilibration of the cannon it is suggested to set the over head joint sliding along the axis of barrel. Fixing of position of this joint in a certain point is provided by a special cam, the profile of which is expected from the condition of the equalization of the momentums of forces of the barrel and the equilibration mechanism. A block-diagram of the resulted computer program of the calculation of these momentums and parameters of the equilibration mechanism is outlined. This suggestion provides a substantial decrease of the effort on at the fly-wheel of the mechanism of the vertical aiming of the barrel.