Evidence
5 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-5).
-
[1]DANFS, Archerfish (SS-311) - construction, Shinano sinking, PUC, postwar service (ibiblio HyperWar verbatim transcription) [nhhc_danfs]
- Locator
- DANFS service narrative and spec block
- Finding type
- vessel_history
- Finding
- Documented for this hull: laid down 22 January 1943 at Portsmouth Navy Yard; launched 28 May 1943 (sponsor Miss Elizabeth B. (Betty) Warner, daughter of Admiral Cyrus W. Warner); commissioned 4 September 1943, Lt. Cmdr. G. W. Kehl. Sank the 59,000-ton Japanese aircraft carrier Shinano on 28-29 November 1944 (Cmdr. Joseph F. Enright) - the largest warship sunk by a submarine. Presidential Unit Citation and seven battle stars. Placed out of commission 12 June 1946; recommissioned 7 March 1952 for Key West training duty; out of commission 21 October 1955; recommissioned 1 August 1957 for ocean-survey duty (Operation Sea Scan) from early 1960; redesignated AGSS-311; struck 1 May 1968; sunk as a target by Snook (SSN-592) 19 October 1968 off San Clemente Island.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-09-18
- Study period
- 1943-1968
- Population
- PNSY construction trades (1943); crew (1943-1968); shipyard overhaul personnel (1952, 1955-57)
- Limitations
- Ship-specific history only; no asbestos or material content. Live NHHC page 404s; ibiblio transcription used. NavSource dates AGSS-311 redesignation to early 1960 - carried in gaps.
- Atlas source
- true
- Evidence ID
- ev-uss-archerfish-ss311-01
-
[2]Balao-class profile (ships-worktrees class-f/balao-class.class.json) - class-level propulsion and asbestos-relevant pathway context [other_primary]
- Locator
- class-f/balao-class.class.json (house class profile)
- Finding type
- asbestos_application
- Finding
- Balao-class context: diesel-electric fleet submarines with no boilers or steam plant; era-consistent asbestos pathways for the class include diesel-exhaust lagging, engine gaskets and packing, acoustic/thermal hull insulation, galley and refrigeration materials, and battery/electrical materials. Construction (1943, Portsmouth Navy Yard) and multiple recommissioning overhauls (1952, 1955-57) fall inside the Navy's peak asbestos-use era.
- Verification
- inferred
- Role
- supporting
- Documentation level
- class_or_era
- Accessed
- 2026-09-18
- Study period
- 1943-1968 (era)
- Population
- Balao-class construction and maintenance trades (era context)
- Limitations
- Class/era inference only - does not name this hull and does not establish that any particular asbestos-containing material was installed aboard SS-311. Hull destroyed 1968; no survey possible.
- Atlas source
- true
- Evidence ID
- ev-uss-archerfish-ss311-02
-
[3]GAO, Navy Efforts To Protect Workers From Asbestos Exposure, HRD-80-2 (Oct 18, 1979) [gao]
- Locator
- GAO product page HRD-80-2 (full text blocked, HTTP 403)
- Finding type
- gov_survey
- Finding
- GAO documented that the Navy used asbestos insulation extensively aboard ships and did not begin substituting alternative insulation materials until the early 1970s - covering Archerfish's construction (1943) and all availabilities through 1968.
- Verification
- verified
- Role
- context
- Documentation level
- context_only
- Accessed
- 2026-09-18
- Study period
- 1979
- Population
- Navy shipyard workers; asbestos program review
- Limitations
- Program-level documentation; supports era context only, not any fact specific to this hull. Full text not retrieved (gao.gov blocks automated fetch, HTTP 403) - content via product-page description.
- Atlas source
- true
- Evidence ID
- ev-uss-archerfish-ss311-03
-
[4]CourtListener API v4 (2026-09-18): sweeps for "USS Archerfish" / "Archerfish" and "SS-311" could not be executed - anonymous quota exhausted (HTTP 429) [court_record]
- Locator
- search_ledger rows sl-uss-archerfish-ss311-04 through sl-uss-archerfish-ss311-05
- Finding type
- historical_record
- Finding
- CourtListener litigation sweep NOT COMPLETED for this hull: the shared anonymous API quota (125 requests/day) was exhausted before this vessel's queries ran; every request returned HTTP 429 ('Expected available in ~69,771 seconds' at last check). No qualifying asbestos litigation was located in the other sources searched, but CourtListener coverage is absent rather than negative for this hull.
- Verification
- partial
- Role
- negative_finding
- Documentation level
- ship_specific
- Accessed
- 2026-09-18
- Study period
- 2026-09-18
- Limitations
- CourtListener gap is an absence of coverage, not a negative finding - no docket data of any kind was retrieved for this hull. State-court and non-digitized records are also uncovered. Sweep should be re-run under an authenticated API token in a future pass.
- Atlas source
- true
- Evidence ID
- ev-uss-archerfish-ss311-04
-
[5]Batch-23 search ledger (this record): DANFS mirror; NavSource data block; GAO; CourtListener sweeps [other_primary]
- Locator
- search_ledger rows sl-uss-archerfish-ss311-01 through sl-uss-archerfish-ss311-06
- Finding type
- historical_record
- Finding
- No qualifying ship-specific asbestos record (survey, abatement contract, industrial-hygiene report, or docketed case) naming this hull was found in the public sources searched; CourtListener coverage was unavailable due to quota exhaustion (see search_ledger).
- Verification
- verified
- Role
- negative_finding
- Documentation level
- ship_specific
- Accessed
- 2026-09-18
- Study period
- 2026-09-18
- Limitations
- Does not establish absence of asbestos aboard - only absence of located public documentation. Does not establish or defeat any claim of exposure or legal eligibility.
- Atlas source
- true
- Evidence ID
- ev-uss-archerfish-ss311-05