Modular Lightweight External Fuel Tank System

The primary objective of this SBIR program is to develop and demonstrate a lightweight, modular fuel tank design that meets the desired level of threat protection and operational performance, and is readily adaptable to future vehicle designs. In addition to the potential weight savings associated with replacing the existing EFV tank, cover, and structural panels, a modular construction was desired to support simple installation and removal from the vehicle. Key performance criteria include: 1) external load-bearing capability; 2) compatibility with the harsh operating conditions and dynamic environment anticipated for advanced amphibious assault vehicles (AAAVs); 3) survivability after impact from RPG type munitions, larger API projectiles (e.g., 14.5 mm), and fragmenting munitions, as well as the hydrodynamic ram forces created by threat impact; and 4) self-sealing against any voids created by these munitions to support fuel containment and reduce the threat from reduce fire/explosion.