Evidence
12 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-12).
-
[1]research packet aw-packet.md (4 sources cited) [other_primary]
- Finding type
- vessel_history
- Finding
- Identity packet verdict: VERIFIED (hull's existence and class placement confirmed by two independent mirror sources; exact commissioning date UNVERIFIABLE, not guessed).
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Limitations
- qualifier: VERIFIED (hull's existence and class placement confirmed by two independent mirror sources; exact commissioning date UNVERIFIABLE, not guessed).
- Evidence ID
- uss-ard-12-ard12-pkt-aw-packet-md
-
[2]NavSource Online, Service Ship Photo Archive, USS ARD-12 page (compiled Navy records; no DANFS entry exists for this hull - 'There is no DANFS history available for USS ARD-12') [other_primary]
- Locator
- USS ARD-12 class history block, specifications block, and commanding-officer table (CDR Swanson 1943-11-20 to 1945-08; CDR Adler to 1945-09; LCDR Herron to 1946-05-21)
- Finding type
- vessel_history
- Finding
- ARD-12 Class Auxiliary Repair Dock: built at Pacific Bridge Co., Alameda, CA (laid down and launched dates not stated); commissioned USS ARD-12 on 20 November 1943, CDR Axel T. Swanson in command; during World War II served at Espirito Santo (New Hebrides), New Guinea, and Subic Bay (Philippine Islands); decommissioned 31 May 1946; struck from the Naval Register (date unknown); transferred to Turkey through the Security Assistance Program 17 August 1987; final disposition unknown. Listed specifications: displacement 5,200 t., length 492 ft, beam 81 ft, draft 6 ft, propulsion none. Campaign ribbons listed: American, Asiatic-Pacific, WWII Victory, Philippines Liberation.
- Verification
- partial
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-09-26
- Limitations
- NavSource is a curated secondary compilation of official Navy records, not itself a primary document; there is no DANFS entry for this hull. Commissioning, CO names, and dates are corroborated by the official CNO logistics history appendix (BBBO) and shipbuildinghistory, but interior material content is not addressed - establishes identity and service, not asbestos.
- Atlas source
- true
- Evidence ID
- ev-uss-ard-12-01
-
[3]Dictionary of American Naval Fighting Ships, Lyra (AK-101) and Lynx (AK-100) entries (hazegray/losthistory.net mirror and DANFS-derived Wikipedia text; live NHHC URLs returned 404 on access date) [nhhc_danfs]
- Locator
- Lyra entry paragraph 3 ('departed for Espiritu Santo towing ARD-12'); Lynx entry TG 116.15.3 convoy narrative
- Finding type
- vessel_history
- Finding
- ARD-12 was towed across the Pacific to its first station: the DANFS entry for USS Lyra (AK-101) records that 'Two days after Christmas [1943], she again departed for Espiritu Santo towing ARD-12.' The DANFS-derived record for convoy flagship USS Lynx (AK-100) details TG 116.15.3 departing San Francisco 27 December 1943 - Lynx towing ABSD-1 Section 13, Lyra towing ARD-12, Sculptor towing YRD(H)-1, Albireo towing YRD(M)-1, escorted by Zuni and joined en route by PC-584, PC-596, and Spangler - reaching Espiritu Santo, New Hebrides, on 1 February 1944, standing in to Pallikula Bay.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-09-26
- Limitations
- Official DANFS text via mirror because live NHHC pages returned 404 (standing link-rot noted in BATCH-01). Establishes the tow and arrival at Espiritu Santo 1944-02-01; contains no material or asbestos information.
- Atlas source
- true
- Evidence ID
- ev-uss-ard-12-02
-
[4]Carter, W.R., Beans, Bullets and Black Oil: The Story of Fleet Logistics Afloat in the Pacific During World War II (Department of the Navy), Appendix - Floating Drydocks roster (HyperWar transcription) [other_primary]
- Locator
- Appendix, Floating Drydocks section, ARD-12 line
- Finding type
- vessel_history
- Finding
- The official CNO fleet-logistics history 'Beans, Bullets and Black Oil' (RAdm Worrall Reed Carter, USN Ret.) lists ARD-12 in its appendix of representative service-force vessels, under Floating Drydocks, with 'Comdr A.T. Swanson' as wartime commander - corroborating the NavSource commissioning record.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-09-26
- Limitations
- Roster entry only - names the dock and its commander among Service Force Pacific floating drydocks; gives no stations, docking events, or material detail.
- Atlas source
- true
- Evidence ID
- ev-uss-ard-12-03
-
[5]National Archives and Records Administration, Special List #44: List of Logbooks of U.S. Navy Ships, Stations, and Miscellaneous Units, by ship number [other_primary]
- Locator
- ARD-12 index lines: '11/20/1943 12/31/1945' and '2/1/1947 4/30/1947'
- Finding type
- historical_record
- Finding
- NARA Special List #44 (deck logs by ship number) lists two coverage windows for ARD-12: 20 November 1943 through 31 December 1945, and 1 February 1947 through 30 April 1947 - the first window spans the dock's entire commissioned wartime service; the second, unexplained, postdates the stated 31 May 1946 decommissioning.
- Verification
- verified
- Role
- archival_lead
- Documentation level
- ship_specific
- Accessed
- 2026-09-26
- Limitations
- Index-level confirmation that deck logs exist for these windows; the logs themselves were not pulled or inspected, and digitized availability was not confirmed. Log content is the strongest untapped source for docking events, crew, and material work aboard this hull.
- Atlas source
- true
- Evidence ID
- ev-uss-ard-12-04
-
[6]uboat.net Allied Warships chronologies for Bumper (SS-333) and Supreme (P 252), stated as extracted from logbooks and patrol reports; USS LST-779 history (secondary, citing ship records) [other_primary]
- Locator
- Bumper notable-events entries 20/22 Jun 1945; Supreme notable-events entries 17/19 Jun 1945; LST-779 entry for 14-16 Oct 1945 at Subic Bay berth 73
- Finding type
- vessel_history
- Finding
- Documented dockings aboard ARD-12 at Subic Bay, 1945: HMS Supreme (P 252) docked in USS ARD-12 on 17 June and undocked 19 June 1945; USS Bumper (SS-333) docked in floating dock ARD-12 on 20 June and undocked 22 June 1945 (both per uboat.net chronologies compiled from the submarines' logbooks and patrol reports); USS LST-779 entered floating dry dock ARD-12 for screw-and-shaft repairs 14 October and undocked 16 October 1945 (per the ship's published history as carried in its reference entry).
- Verification
- partial
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-09-26
- Limitations
- Secondary compilations derived from primary patrol reports and logbooks; the underlying primary documents (NARA submarine patrol reports, LST-779 war diary) were not directly inspected. Establishes the dock performing its repair function at Subic Bay in mid/late 1945 - no material or asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-ard-12-05
-
[7]Defense Technical Information Center, AD0816102: 'Test of Zinc Inorganic Coatings on Work Areas of a Floating Drydock - Results of 25th-Month Inspection' (published 1967-05-01) [other_primary]
- Locator
- DTIC OAI record AD0816102, abstract and publication date
- Finding type
- historical_record
- Finding
- A Navy technical report documents that 14 zinc inorganic coatings and one zinc-rich epoxy coating were applied to 42 deck sections and other work areas of 'the floating drydock USS ARD-12' for a 2-year in-service field test, with the 25th-month inspection report published May 1967; the dock was under 'conditions of continuous ship repair routine' during the test - establishing ARD-12 in active ship-repair use circa 1965-1967, roughly two decades after commissioning.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-09-26
- Limitations
- Abstract-level detail only; DTIC full text was not retrieved (oai endpoint reachable by index, report body not fetched). The abstract does not state the dock's location during the test and contains no asbestos information - it establishes working use and deck-area surface treatments, not hazardous-material content.
- Atlas source
- true
- Evidence ID
- ev-uss-ard-12-06
-
[8]Dilley, Williams & Wiegel, Model Study of Ship Mooring Forces: ARD-12, University of California Institute of Engineering Research for U.S. Bureau of Yards and Docks, 1956 (HathiTrust page images; UPenn Online Books Page catalog record) [other_primary]
- Locator
- UPenn catalog entry ha101648722; companion methodology described in 'Free Oscillation in Surge and Sway of a Moored Floating Dry Dock' (ICCE, doi:10.9753/icce.v6.52)
- Finding type
- historical_record
- Finding
- In 1956 the University of California, Berkeley (Wave Research Laboratory / Institute of Engineering Research) produced 'Model Study of Ship Mooring Forces: ARD-12' by R.A. Dilley, J.B. Williams, and R.L. Wiegel under contract to the Bureau of Yards and Docks - a hull-specific engineering study using ARD-12 as the subject vessel (a 1:40-scale dynamically balanced model moored per the prototype).
- Verification
- verified
- Role
- archival_lead
- Documentation level
- ship_specific
- Accessed
- 2026-09-26
- Limitations
- Catalog-level record; the report text was not inspected. The study confirms the hull existed and was modeled for a Navy mooring engineering effort in 1956 but the accessible record does not state where ARD-12 was moored or its service status; no asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-ard-12-07
-
[9]NavSource USS ARD-12 page (transfer line and photo caption); shipbuildinghistory.com 'US Navy Dry Docks AFDB AFDM AFDL ARD YFD' table, ARD-12 row; uswarships.jounin.jp ARD table (1987/8/7 loan) [other_primary]
- Locator
- shipbuildinghistory auxafd table ARD-12 row; NavSource ARD-12 page disposition lines and image caption 09671201
- Finding type
- vessel_history
- Finding
- ARD-12 was transferred to Turkey in August 1987 through the Security Assistance Program (NavSource gives 17 August 1987; a Japanese reference table gives 7 August 1987) and served in the Turkish navy as a floating dock. shipbuildinghistory records 'to Turkey 1987 as Havuz 7 (Y-127), struck 1998.' A NavSource photo caption describes ex-ARD-12 in Turkish service as 'Havuz 12' at Mersin 'circa 1972' - a caption that predates the stated 1987 transfer and uses a different pennant name; the conflict is unresolved. Final disposition unknown.
- Verification
- partial
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-09-26
- Limitations
- Transfer under SAP in 1987 is consistent across sources but the exact date varies (7 vs 17 August) and the Turkish name varies (Havuz 7 / Y-127 vs photo-caption 'Havuz 12' dated c.1972 - before the stated transfer). Neither the US struck-from-register date nor the post-1998 fate is documented in consulted sources.
- Atlas source
- true
- Evidence ID
- ev-uss-ard-12-08
-
[10]U.S. Naval Institute Proceedings, 'ARD-1, The Pioneer' (July 1967, Vol. 93/7/773) - design description of bow/wing-wall berthing, storeroom, and machinery spaces; NavSource ARD-12-class sister-ship specifications [reputable_press]
- Locator
- USNI Proceedings article, design/construction paragraphs
- Finding type
- asbestos_application
- Finding
- Class/design context for asbestos inference: the auxiliary-repair-dock type put storerooms, berthing, and machinery spaces inside the bow and wing walls around the docking well (per the U.S. Naval Institute Proceedings account of the ARD type's design), and the wartime ARD-12 class were one-piece welded-steel docks built 1943-44 with workshops, pumps, and berthing for a crew of roughly 112-120 in sister-ship listings. Ships and craft built for the Navy in 1943-44 were constructed in the era when asbestos was the standard marine insulation, gasket, packing, and fireproofing material; typical applications in a structure of this type would be machinery and pipe insulation, gaskets, packing, electrical insulation, and fire-resistant accommodation-space material. As a non-propelled drydock it had no boilers or steam propulsion plant.
- Verification
- inferred
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-09-26
- Limitations
- Class/design documentation, not a hull record: no source inspected names asbestos aboard ARD-12 specifically. The absence of a propulsion plant narrows the plausible material scope relative to powered ships. Does not establish presence, quantity, condition, or exposure aboard this hull.
- Atlas source
- true
- Evidence ID
- ev-uss-ard-12-09
-
[11]Batch-2552 search ledger (this record) [other_primary]
- Locator
- search_ledger rows sl-uss-ard-12-01 through sl-uss-ard-12-13
- Finding type
- historical_record
- Finding
- No qualifying ship-specific asbestos record located: no asbestos survey, material schedule, abatement contract, hazmat disclosure, or docketed exposure case naming ARD-12 was found in the public sources searched (see search_ledger). NHHC maintains no DANFS entry for this hull; the Naval Vessel Register website carries no ARD-12 record; the DTIC and Berkeley technical reports that name the hull contain no asbestos information.
- Verification
- verified
- Role
- negative_finding
- Documentation level
- ship_specific
- Accessed
- 2026-09-26
- Limitations
- Absence of a located public record does not prove absence of asbestos aboard - wartime construction and 40+ years of active repair work are consistent with era-typical materials. Does not establish or defeat any claim of exposure or legal eligibility.
- Atlas source
- true
- Evidence ID
- ev-uss-ard-12-10
-
[12]CourtListener API v4 opinion search via cl-auth-search.py (authenticated, fleet-paced) [court_record]
- Locator
- search_ledger rows sl-uss-ard-12-11 through sl-uss-ard-12-13 (attempt log)
- Finding type
- litigation_documented
- Finding
- CourtListener litigation sweep attempted on 2026-09-26 via the mandatory authenticated fleet helper (cl-auth-search.py): opinion-index queries '"ARD-12" asbestos' and '"ARD-12"' were requested four times over ~35 minutes; every attempt exited at the fleet-wide pacing gate before any HTTP request reached CourtListener. No litigation classification could be completed; no case naming ARD-12 is asserted, and none is excluded.
- Verification
- unverified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-09-26
- Limitations
- Sweep incomplete - the fleet pacing gate denied all three attempts before API contact. A floating drydock hull number ('ARD-12') is low-collision but the absence of a completed sweep means litigation status is undetermined, not negative.
- Atlas source
- true
- Evidence ID
- ev-uss-ard-12-11