Advanced Arresting Gear Cable for Lighter Weight and Longer Service Life

Erigo proposes to design, build, and test a titanium purchase cable that has several key advantages compared to steel arresting cables currently used by the Navy. Titanium has a much higher strength-to-weight ratio and greater intrinsic flexibility than steel, reducing the load imposed on other portions of the arresting gear system. Leveraging advancements in titanium alloy development, coatings, and lubrication, we demonstrated in Phase I using scaled cable prototypes that Erigos titanium design should exceed the Navys requirements at a 64% the weight of the current steel purchase cable. The increased cost of titanium is expected to be offset by the extended service life that reduces (1) the downtime required for cable replacement, (2) manning requirements, (3) shipboard storage of purchase cables, and (4) supply chain costs. In the Base Phase of Phase II, Erigo will fabricate larger diameter titanium cables than in Phase I. These cables will have a prototypical design and will be fabricated using the same high volume techniques that would be used in full-scale production. In the Option Phase, full-scale diameter cables will be produced and tested by scaling up the design that provided the best performance in the Base Phase.