What is the difference between a Tiller ladder Fire truck and a Tower Ladder Fire truck?

A ladder truck has ladders, including one that is attached to the truck and can be rotated, elevated and extended for firefighter access to Windows or roofs by climbing up the ladder. It can be used for a platform for a portable hose and nozzle, but it is often considered overly dangerous because of the forces involved. Some ladders have a built-in hose and nozzle to be operated after the firefighters climb up to it.

A tower truck has a hydraulically operated ladder or crane that raises a bucket in which firefighters have already been loaded. It often has a built-in pipe and nozzle for directing water on the fire from the higher elevation. It might also be used to safely evacuate fire victims who cannot climb down a ladder.