Spruance Class (DD-963) Destroyers — Asbestos in Cold War Gas Turbine Destroyers

The Spruance class destroyers — 31 hulls (DD-963 through DD-997) built between 1972 and 1983 at Ingalls Shipbuilding (Pascagoula, Mississippi) — represented a fundamental shift in US Navy surface combatant propulsion from the steam turbine plants of all previous postwar destroyer classes to all-gas turbine propulsion. The Spruance class used four General Electric LM2500 marine gas turbine engines in a COGAG (Combined Gas and Gas) arrangement, eliminating the high-pressure boilers and steam turbines that had been the source of the heaviest asbestos insulation loads in earlier destroyer classes. However, the Spruance class retained asbestos in auxiliary systems and interior construction installed during the 1972-1983 build period.

Gas Turbine Propulsion and Reduced Boiler Room Asbestos

The LM2500 gas turbine plant eliminated the most asbestos-intensive engineering spaces of steam-powered destroyer construction — the firerooms with their asbestos-insulated boiler casings, steam drums, and high-pressure main steam piping. Spruance class engineering ratings worked in gas turbine module spaces rather than boiler rooms, and the mechanical engineering plant did not use steam at the pressures requiring the block and sectional asbestos insulation of steam-powered predecessors.

Residual Asbestos in Auxiliary Systems and Interior Construction

Despite the shift to gas turbine propulsion, Spruance class destroyers built in the 1970s and early 1980s were constructed with asbestos-containing materials that remained in the Navy’s shipbuilding specifications for non-propulsion applications:

• Exhaust system thermal insulation on gas turbine exhaust ducts and uptakes, where insulation was required on high-temperature exhaust surfaces in the machinery spaces
• Auxiliary steam systems — Spruance class ships retained limited steam generation for hotel loads (distilling, heating, domestic water) through an auxiliary boiler, with asbestos insulation on the smaller auxiliary boiler and its steam distribution piping
• Interior ship construction in crew berthing, divisional spaces, and working spaces using asbestos floor tile, overhead lagging, and bulkhead insulation specified before the mid-1970s phase-down of asbestos in Navy interior construction
• Shipboard equipment gaskets and packing in auxiliary machinery, valve packing, and equipment gaskets throughout the hull in construction predating the asbestos substitution programs of the early 1980s

Ticonderoga Class (CG-47) — Spruance Hull with Added Combat System

The Ticonderoga class guided missile cruisers (CG-47 through CG-73) used the Spruance class hull as their basis, adding the Aegis combat system and modifications for the cruiser role. Ticonderoga class ships built at Ingalls in the 1983-1994 period share the Spruance class hull construction pattern, including the same auxiliary system asbestos residuals from the earlier Spruance class build period.

VA Claims for Spruance Class Veterans

VA presumptive service connection under 38 CFR § 3.309(d) covers asbestos exposure aboard Navy destroyers. Veterans who served aboard Spruance class destroyers (DD-963 through DD-997) and have since been diagnosed with mesothelioma, asbestosis, or asbestos-related lung cancer may qualify for VA disability benefits. The engineering rating asbestos exposure pathway on Spruance class destroyers differs from steam-powered predecessors but asbestos was still present in auxiliary systems and interior construction for ships built through the early 1980s.

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.