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A ladder frame with beam axles is used and the front axle is set forward on semi-elliptical leaf springs. The set-back axle version was replaced by the Anthem in 2017. The base rear suspension is a Mack tandem (two powered axles) but other axle/suspension combinations are available. Wheelbases are from 166 to 247 inches (420 to 630 cm)
Fixed ladders consist of the following components: Rungs : all fixed ladders have rungs, dictated by OSHA Standard 1910.27(b)(1) of no more than 12" (300 mm) on center (measured as the distance from the centerline of a rung to the center line of the next rung), and at 16" (410 mm) clear width.
An extension ladder. A ladder is a vertical or inclined set of rungs or steps commonly used for climbing or descending. There are two types: rigid ladders that are self-supporting or that may be leaned against a vertical surface such as a wall, and rollable ladders, such as those made of rope or aluminium, that may be hung from the top.
A pilot ladder is a highly specialized form of rope ladder, typically used on board cargo vessels [1] for the purposes of embarking and disembarking pilots. The design and construction of the ladders is tightly specified [2] by international regulation under the SOLAS regime. Pilot ladders and other boarding arrangements must be carefully ...
A plank used in the repair of a ship. A plank is timber that is flat, elongated, and rectangular with parallel faces that are higher and longer than wide. [1] Used primarily in carpentry, planks are critical in the construction of ships, houses, bridges, and many other structures. [2] Planks also serve as supports to form shelves and tables.
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A ladder frame with beam axles is used. Front axles are on semi-elliptical leaf springs and tandem steer axles are available. The base rear suspension is a Mack tandem but other axle/suspension available. Wheelbases are from 159 to 220 inches (400 to 560 cm). The TerraPro has more frame options than other Mack trucks.
A ladder frame with beam axles is used. Front axles are on semi-elliptical leaf springs. The base rear suspension is a Mack tandem but other axle/suspension types are available. The LR has more frame options than other Mack trucks, with drop frames available.