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Extension ladder or "telescopic ladder", a fixed ladder divided into two or more lengths for more convenient storage; the lengths can be slid together for storage or slid apart to expand the length of the ladder; a pulley system may be fitted so that the ladder can be easily extended by an operator on the ground then locked in place using the ...
The ladder itself is capable of being converted into several heights and configurations from a single ladder. Configurations include a straight or extension ladder, an A-frame ladder, a staircase ladder (an uneven A-frame for use on stairs), a 90° ladder, and both sides of a scaffolding trestle achieved through a triple locking hinge.
This means that if there is a 4" (100 mm) gutter projecting from the side of a building, a fixed ladder would have to have standoff brackets that were at least 11" (7" + 4") (280 mm) in length. Cages: Cages are optional for fixed ladders with a floor to floor elevation of less than 20' (6100 mm). They are often available for ladders with ...
A 32M turntable ladder from the London Fire Brigade. A turntable ladder is similar in appearance to a hydraulic platform, however with a primary difference of instead of having a caged platform the turntable ladder is simply a large telescopic ladder, which can still be used to effect rescues from tall structures and pump water.
A ladder company can operate three types of ladder trucks: a rear mounted aerial ladder truck, equipped with a 100' aerial ladder mounted at the rear of the apparatus; a tower ladder truck, equipped with either a 75' or 95' telescoping boom and bucket mounted in the center of the apparatus; and a tractor-drawn aerial ladder truck known as a ...
In the United States, turntable ladders with additional functions such as an onboard pump, a water tank, fire hose, aerial ladder and multiple ground ladders, are known as quad or quint engines, indicating the number of functions they perform. [10] The highest TL in the world is the Magirus M68L, with a range of 68 meters (223.1 ft). [11]
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