Bridge Launch Linkage Assembly

The Bridge assembly launched by Army’s Armored Vehicle Launched Bridge (AVLB) is a scissor-type folding bridge, actuated using a hydraulic cylinder via an integral system of cables. This system presents several challenges. First, the existing cable-cylinder system is extremely heavy, comprising approximately 18,000lbs of the 30,000lbs total weight of the bridge assembly. In addition, the cable system can only apply force during deployment of the bridge. During retrieval, the system relies on gravity to close the bridge. This significantly limits the available motion profile. During Phase I, GS Engineering developed and proved the feasibility of a mechanism which is 36% lighter than the existing system and is able to fully control the bridge during the entire range of motion. During Phase II, GS Engineering will complete final design, perform all required stress and fatigue analysis, and develop a level III TDP including all required work instructions and operational manuals. Production tooling will be developed to enable quick and cost-effective transition to Phase III production in order to quickly bring this improved capability to the Army. The resulting system will save weight, increase the speed of deployment, and provide a level of control not previously available.