Mobile, Ala. shipbuilder Austal USA announced it has started construction on the future USNS James D. Fairbanks (T-ATS 13), the third of five steel U.S. Navy Navajo Class Towing, Salvage, and Rescue Ships Austal USA has under contract with the U.S. Navy.Construction is well underway on both the future USNS Billy Frank Jr. (T-ATS 11) and USNS Solomon Atkinson (T-ATS 12), the shipbuilder said.