Ramp Modules

TM 5-5420-279-23

1-10-31 Ramp Modules

The ramp modules have an overall length of 20 ft (6.114 m) and each consists of six

transverse deck units attached at 24 hinge points to two longitudinal ramp panels.

Fig 1.11 Ramp Module

The modules are hoisted from one of two sets of slinging points on the outboard side of

each ramp panel during deployment (dependent on whether the ramp end beam is connected)

and from similar slinging points on the inboard side for retrieval. Two dampers are attached to

each ramp panel and the transverse deck units to control the rate of folding/unfolding during

bridging operations.

Two curb plates are hinged on each side of the module and are lifted and dropped into

position during bridge deployment.

When in the folded condition, the modules are 8 ft (2.447 m) wide (over the nibs) and 14 ft

(4.302 m) wide when deployed, but without the two curb plates deployed. One end of the ramp

module incorporates a dowel and shoot bolt arrangement along with a jaw configuration. This

connection system is common with the parallel modules. The jaws are fixed to the module with

friction grip bolts, which include torque caps, which are used to indicate that the bolts are

correctly fastened.

The toe end of the ramp incorporates an aperture in which the end beam locates, it is held

by an upper fixed and a lower removable pin which is locked by a twisting action. Guide pads

located within the aperture are used to align the lower holes of the end beam and the ramp

module.

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