When but one flywheel is used, it should be placed in as direct connection as possible with that part of the mechanism where the greatest amount of the periodical excess originates; but when it originates at two or more points, it is best to have a flywheel in connection with each of these points.
The fluid flywheel provided on this engine was designed to slip until full throttle was required in top gear.
For example, in a machine-work, the steam-engine, which is the prime mover of the various tools, has a flywheel on the crank-shaft to store and restore the periodical excess of energy arising from the variations in the effort exerted by the connecting-rod upon the crank; and each of the slotting machines, punching machines, riveting machines, and other tools has a flywheel of its own to store and restore energy, so as to enable the very different resistances opposed to those tools at different times to be overcome without too great unsteadiness of motion.
The latter was driven via a flywheel weighing about 2 tons, made from a solid aluminum bronze casting.
But the UK way is to machine down the fins to original size and use a standard flywheel cowling.