Destroyer Tender (AD Class) — Asbestos in Navy Repair Ship Engineering

US Navy destroyer tenders — the AD class — served as floating bases and repair ships for destroyer squadrons, providing comprehensive maintenance, repair, and resupply services for assigned destroyer and escort forces in forward deployed areas. Major AD class vessels included the Dixie class (AD-14 through AD-18, WWII-era), Prairie class (AD-15), and the Samuel Gompers class (AD-37 through AD-38, Cold War). Destroyer tenders displaced 10,000–20,000 tons and were staffed with hundreds of skilled shipyard-equivalent trades ratings — Machinery Repairmen, Boilermakers, Hull Technicians, Electrician’s Mates, and other specialist ratings — who performed comprehensive repair work on the destroyers and escorts assigned to their repair berths. Destroyer tenders accumulated asbestos exposure from two pathways: the ship’s own steam propulsion systems used asbestos pipe insulation throughout the engineering plant, and the repair work performed on assigned destroyers and escorts exposed tender crew to asbestos-containing materials from the ships being repaired.

Tender Propulsion Systems and Asbestos

AD class tender steam plants incorporated asbestos insulation:

• Destroyer tender steam boiler rooms — AD class destroyer tenders used steam propulsion with Babcock & Wilcox or Combustion Engineering boilers using asbestos block insulation on boiler casings and asbestos pipe covering on steam distribution lines throughout the tender’s boiler rooms. Boiler Tender ratings maintaining the tender’s own steam plant accumulated asbestos exposure from the boiler room insulation systems
• Steam propulsion turbine spaces — the steam turbines and reduction gears driving destroyer tender screws were served by steam distribution piping with asbestos pipe covering and asbestos gasket materials throughout the tender’s turbine rooms

Destroyer Repair Operations and Asbestos

Repair work on assigned destroyers created additional asbestos exposure:

• Destroyer boiler and steam plant repair — Machinery Repairmen and Boilermakers aboard destroyer tenders performing boiler repairs, tube replacements, and steam system overhauls on assigned destroyers worked with asbestos-containing boiler lagging, asbestos-covered steam pipe insulation, and asbestos gasket materials from the destroyers’ steam plants during repair operations conducted in the tender’s repair berths and industrial shops
• Pipe system and gasket repair work — destroyer tender crew members performing pipe repairs, valve overhauls, and mechanical system repairs on assigned destroyers cut, replaced, and disturbed asbestos-containing gasket materials and pipe insulation from destroyer piping systems during repair operations in the tender’s shops and onboard the destroyers during repair period availability

Destroyer Squadron Support Operations

Destroyer tender operations created sustained asbestos exposure:

• Destroyer tenders provided months-long repair periods for assigned destroyer squadrons in forward-deployed anchorages and naval bases, with tender crew members performing continuous repair work on rotating destroyer availability periods throughout extended deployments in the Pacific and Atlantic

VA Claims for Destroyer Tender Veterans

VA presumptive service connection under 38 CFR § 3.309(d) covers asbestos exposure aboard Navy auxiliary vessels and repair ships. Machinery Repairmen, Hull Technicians, and engineering ratings who served aboard destroyer tenders and have since been diagnosed with mesothelioma, asbestosis, or asbestos-related lung cancer may qualify for VA disability benefits.

Source notes: equipment-manifest entries (where shown) are sourced from public-record BUSHIPS (Bureau of Ships) documentation, NARA archives, and the public asbestos litigation record. Manufacturer attributions link to documented asbestos-product histories on AsbestosIndex.com where available. Nothing on this page constitutes medical or legal advice.