U.S. Military bridging equipment.
Improved Ribbon Bridge (IRB) is a modern floating bridge system developed by General Dynamics European Land Systems (GDELS), a business unit of General Dynamics. It is designed to provide ground forces with the capability to transport heavy military equipment such as loaded heavy equipment transporter (HET), weapons systems, wheeled / tracked combat vehicles, trucks, suppliers and troops over rivers and wet gap obstacles.
The M3 is self-deployable by road, operating as a 4×4 wheeled vehicle with a maximum road speed of 80 km/h. It is driven into the water for amphibious operation, for which it deploys two large aluminium pontoons, unfolding them along the length of its hull. In water, the M3 is propelled and steered by 2 fully traversable pump jets at speeds of up to 14 km/h.
The Medium Girder Bridge (MGB) is a lightweight, man portable bridge and can be assembled without help from heavy equipment. In addition, it is also a deck type, two-girder bridging system capable of carrying loads up to and including Main battle tanks (MBT).
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