Larger fans can move more air per revolution than smaller fans.
This gave eight beats per revolution, rather than the usual four, designed to give a more even draw on the fire.
The rate of growth per revolution around the coiling axis.
Using both signals a map of the position of the data per revolution can be built.
This had enabled eight strokes per revolution instead of the former four leading to a smoother motion.
Each barrel fires once per revolution at about the same position.
As the head rotates, the tips of the plates move together and apart once per revolution.
The process then repeats, delivering blows every time the teeth meet, almost always twice per revolution.
Normally there are one or two constrictions per revolution.
If it is then decreased to 8" at the point of discharge, the material will move 8" per revolution.