Gnome 100 hp Engine - Stationary Front View

The action of the main Crankshaft, slave rods and pistons appears complex at first sight, but is much more easily to understand this reversed the motion of the engine in which the crankshaft rotates instead of the whole engine for visibility purposes.

In this reversed engine animation, the (clockwise direction) firing sequence of the cylinders 1,3,5,7,9,2,4,6,8 is shown more easily.