EQUIPMENT DESCRIPTION, AND THEORY OF OPERATION
RAPIDLY EMPLACED BRIDGE (REB)
NSN 5420-01-481-3959 P/N 12480471
This TM contains field level maintenance instructions for the Rapidly Emplaced Bridge (REB). The REB
consists of the bridge and pallet (launcher), and is transported and deployed on the Common Bridge
Transporter (CBT). Field maintenance includes troubleshooting, Preventive Maintenance Checks and
Services (PMCS), lubrication, general maintenance, replacement of components, and minor repair as
allocated by the Maintenance Allocation Chart (MAC).
a. Type of Manual Field maintenance.
b. Equipment Names and Model Number The REB consists of two major components: the Bridge
and the Pallet. Together they are the Rapidly Emplaced Bridge M21. The REB is transported and
deployed on the CBT. (Refer to figures 1 and 2.)
c. Purpose of Equipment To provide a means for the U.S. Army's Stryker Brigade Combat Team
(SBCT) to rapidly cross unprepared gaps up to 42.6 ft (13 m) in a minimum amount of time, thereby
increasing the strategic options for military operations. The REB facilitates defensive and offensive
maneuvers by supporting wheeled and tracked vehicles up to Military Load Classification (MLC) 40
for normal crossings, and MLC 50 for caution crossings.
The REB bridge pallet should not be loaded on M945 or M812
transporters; attempting to load the REB on either vehicle will
result in damage to equipment.
d. Special Inclusions None.
MAINTENANCE FORMS, RECORDS, AND REPORTS
Department of the Army forms and procedures used for equipment maintenance will be those prescribed
by DA PAM 750-8, Functional Users Manual for the Army Maintenance Management System (TAMMS).
Figure 1. Rapidly Emplaced Bridge on CBT, Typical.