What distinguishes a Rear mount Aerial from a Tiller Aerial?

The defining feature that distinguishes a Rear mount Aerial from a Tiller Aerial is indeed related to maneuverability. The Tiller Aerial has a unique design that includes a set of rear wheels allowing it to navigate tightly, which is particularly advantageous in urban settings where space is restricted. This enhanced maneuverability makes it capable of executing sharp turns that a Rear mount Aerial, which is typically more rigid in its configuration, cannot match.

While the length of the ladders for both types might be similar in certain instances, and the type of water pump used does not fundamentally differentiate the two, it is the ability for the Tiller Aerial to pivot separately from the front of the truck that provides it a tactical edge in diverse operational environments. Therefore, the distinction lies in the Tiller Aerial's design facilitating enhanced maneuverability, making it uniquely suited for particular firefighting scenarios.