Figure 1-1. Interior bay superstructure, three-quarter view with shipping dimensions.

TM 5-5420-205-14

Figure 1-1. Interior bay superstructure, three-quarter view with shipping dimensions.

and left approach ramps can easily be arranged and

b. End Bay Superstructure. The end bay

vehicle headings kept in the same direction. The

superstructure (fig. 1-2) is comprised of two basic

hinged portion of the ramp superstructure can be

elements: (1) a deck section similar to the interior

rotated only after it has been connected to another

bay superstructure but approximately 14 feet, 9

vehicle. After that connection has been made, it is

inches long; and (2) a tapered ramp approximately

rotated upward and outward to the desired

22 feet, 9 inches long which can be rotated by

position. The ramp can be adjusted in grade

hydraulic cylinders controlled from the vehicle cab

positions ranging from any angle upslope to 15

to form the approach ramp for bridges and ferries.

percent down slope. In the desired position the

The sections are fabricated of aluminum alloy and

ramp unfolding cylinders are hydraulically locked

steel. The hinges joining the 2 ramp sections are of

to secure the hinged joint from turning when the

high strength steel. The end and interior bay

load moves onto the bridge. The maintenance

superstructures are adaptable to and transported

paragraphs of this manual contain detailed

by the same type transporter. The direction of

descriptions of the interior bay superstructure

rotation of the ramp for assembly into bridge or

components.

ferry position is controlled by a simple pin at-

tachment between the main girders, so that right

1-2