Evidence
10 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-10).
-
[1]research packet 861-packet.md [other_primary]
- Finding type
- vessel_history
- Finding
- Identity packet verdict: VERIFIED
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Evidence ID
- uss-pc-1146-pc1146-pkt-861-packet-md
-
[2]NavSource Online: Submarine Chaser Photo Archive, PC-1146 - construction and milestone timeline, specifications, France/South Vietnam transfers, striking [other_primary]
- Locator
- NavSource 12/011146.htm header block, specifications block, and photo-caption table
- Finding type
- vessel_history
- Finding
- NavSource timeline for this hull: laid down 21 September 1943 by the Defoe Shipbuilding Co., Bay City, Michigan; launched 15 November 1943; commissioned USS PC-1146, 13 July 1944; decommissioned January 1947 and laid up in the Pacific Reserve Fleet, Columbia River Group; transferred to France in 1951 and named Glaive (P 632); transferred to South Vietnam in 1956 and renamed RVNS Tay Cây (HQ 05); struck from the Naval Register 10 July 1965 and scrapped. Call sign Nan-George-Xray-William. Specifications: 280 t (lt) / 450 t (fl); 173'8" x 23' x 10'10"; 20.2 kt; complement 65; armament one 3"/50 dual-purpose mount, one 40mm mount, three 20mm guns, four depth-charge projectors, two depth-charge tracks, two rocket launchers; propulsion two 1,440 bhp General Motors 16-278A diesel engines, Farrel-Birmingham single reduction gear, two shafts. A Marine Nationale photograph dated 10 April 1951 shows Glaive departing Bremerton, WA, in company with the sister ex-PC Trident (P 634), placing this hull's turnover departure at Bremerton in April 1951. NavSource explicitly notes no DANFS history exists for PC-1146.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1943-1965
- Population
- Defoe Shipbuilding construction trades (1943-44); USN crew (1944-47); reserve-caretaker population (1947-51); French crew (1951-56); RVN crew (1956-65)
- Limitations
- NavSource is a volunteer secondary compilation, not a primary registry - its milestone dates generally track NVR/DANFS and its photograph captions are archival. Contains no asbestos content. The French-name attribution on this page (Glaive) conflicts with French-record sources that map this hull to Trident - see ev-uss-pc-1146-pc1146-09 and gaps; the 1965 RVN end-state is consistent across sources. Page verified live HTTP 200 on 2026-10-03 (navsource.org is dead - the .net domain is correct).
- Atlas source
- true
- Evidence ID
- ev-uss-pc-1146-pc1146-01
-
[3]DANFS, Yaupon (ATA-218) (R. J. Cressman, 2018) - operational mention of PC-1146 in the Ulithi-to-Okinawa passage, September 1945 [nhhc_danfs]
- Locator
- DANFS 'Yaupon (ATA-218)' service narrative, 5-17 September 1945 paragraphs
- Finding type
- vessel_history
- Finding
- DANFS's Yaupon (ATA-218) entry documents this hull's wartime western-Pacific service: on 10 September 1945 Yaupon, towing the floating workshop YR-62, 'sailed for Okinawa five days later in company with the submarine chaser PC-1146 and the water barge YW-102,' with Yaupon's Lt. Lane as officer in tactical command. During 15-16 September 1945 the formation entered heavy squalls building to a typhoon; when YW-102 'lost fuel suction and dropped astern. PC-1146 stood by the hobbled yardcraft until the latter could resume the voyage.' All units hove-to; 'With PC-1146 pounding in the heavy seas, her commanding officer sought permission to proceed independently, which Lt. Lane granted immediately.' Winds reached Force 12 with gusts logged at Force 14-15 before Yaupon anchored in Buckner Bay, Okinawa, 17 September 1945.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1945-09
- Population
- PC-1146 crew (September 1945)
- Limitations
- DANFS documents the operational episode, not materials or asbestos. It is the only NHHC mention of this hull located - no dedicated DANFS entry exists for PC-1146 (NavSource confirms none). Live page verified 2026-10-03 with browser user-agent (plain curl receives a 404 - server-side UA filtering, not link rot).
- Atlas source
- true
- Evidence ID
- ev-uss-pc-1146-pc1146-02
-
[4]NavSource Online: Submarine Chaser Photo Archive, PC-1255 - 'The Saga of the PC-1255/PGM-18' firsthand crew narrative (R. W. Daly/PC-1181 series) [other_primary]
- Locator
- NavSource 12/011255.htm, 'The Saga of the PC-1255/PGM-18,' log entry for Thursday 4 January 1945
- Finding type
- vessel_history
- Finding
- A firsthand crew narrative of PC-1255/PGM-18 hosted on NavSource places this hull at the U.S. Naval Sub Chaser Training Center (SCTC), Miami, Florida, during the working-up period: 'Thursday, 4 January 1945 ... we returned to Pier 3 at SCTC, Miami mooring alongside the PC-1146 at 1905 hours.'
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1945-01
- Population
- PC-1146 crew at SCTC Miami (January 1945)
- Limitations
- Ship-specific placement, but a crew memoir compiled by a veteran rather than an official record - treated as corroborating narrative. Establishes the hull was at SCTC Miami in early January 1945, between her July 1944 commissioning and the documented September 1945 Ulithi departure; the interim movements are undocumented (see gaps). No asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-1146-pc1146-03
-
[5]NavSource Online: Submarine Chaser Photo Archive, PC-1171 - firsthand crew narrative (R. W. Daly/PC-1181 series) [other_primary]
- Locator
- NavSource 12/011171.htm, PC-1171 narrative, entries for 20 April - 20 May 1946
- Finding type
- vessel_history
- Finding
- A firsthand crew narrative of PC-1171 hosted on NavSource places this hull in the postwar central Pacific: 'On 11 May, they got underway for Pearl Harbor in company with the PC-1146 arriving there on the 20 May 1946' - PC-1146 departed Eniwetok with PC-1171 on 11 May 1946 and reached Pearl Harbor on 20 May 1946.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1946-05
- Population
- PC-1146 crew (postwar Pacific return, May 1946)
- Limitations
- Crew memoir, not an official log; the year 1946 follows the narrative's sequence after its 20 April 1946 departure from Guam for Eniwetok. Corroborates that the hull returned from the western Pacific via Pearl Harbor in May 1946, consistent with the January 1947 Columbia River reserve-fleet lay-up. No asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-1146-pc1146-04
-
[6]NARA file unit 'PC-1146, 7/13/44-10/21/46' (NAID 192287295, Roll 5936), RG 24 Records of the Bureau of Naval Personnel, series Muster Rolls of U.S. Navy Ships, Stations, and Other Naval Activities [other_primary]
- Locator
- catalog.archives.gov/id/192287295 (RG 24 muster rolls, Roll 5936; verified live HTTP 200)
- Finding type
- historical_record
- Finding
- The hull's muster rolls are digitized in the National Archives Catalog: 222 images covering the entire U.S. Navy career of PC-1146 from commissioning (13 July 1944) through 21 October 1946 - the full crew-roster record for identifying who served aboard during construction-era acceptance, shakedown, wartime deployment, and the postwar return.
- Verification
- verified
- Role
- archival_lead
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1944-1946
- Population
- All hands assigned to PC-1146, 1944-1946
- Limitations
- Archival lead: muster rolls document who served aboard, not materials or work performed; a named crew member is a service fact, not an exposure record. Digitized via the Ancestry partnership; 0 of 222 images transcribed at access. Complement to - not substitute for - the deck logs, which are undigitized.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-1146-pc1146-05
-
[7]Era inference built on: NavSource specifications block for this hull (twin-screw GM 16-278A diesel plant - no steam plant); PC-461-class construction context (steel hull, 1943-44) [other_primary]
- Locator
- NavSource 12/011146.htm specifications block (propulsion line)
- Finding type
- asbestos_application
- Finding
- Era inference: a steel-hulled PC-461-class submarine chaser built 1943-44 sits inside the Navy's documented asbestos-use era; era-standard applications aboard a vessel of this type and period were thermal insulation and lagging on diesel exhaust runs, machinery and piping lagging, gaskets, valve packing, electrical insulation, deck coverings, and fireproofing. As a twin-screw diesel vessel she carried no steam plant - the boiler/turbine lagging pathway of steam vessels does not apply, but the small-ship confined-space dynamic applies.
- Verification
- inferred
- Role
- supporting
- Documentation level
- class_or_era
- Accessed
- 2026-10-03
- Study period
- 1943-1965
- Population
- Defoe construction trades (1943-44); USN crew (1944-47); French/RVN crews (1951-65); scrapping workers (1965)
- Limitations
- Class/era inference only - no hull-specific insulation survey, material list, or work package located for PC-1146. Names era-standard applications, not confirmed installed materials on this hull. No quantity. Product names are normalized era terms; no manufacturer attribution for this hull.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-1146-pc1146-06
-
[8]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 - spanning this hull's entire construction (1943-44) and U.S. custody era (1944-65, including reserve).
- Verification
- verified
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-10-03
- 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, confirmed 2026-10-03) - content via product-page description.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-1146-pc1146-07
-
[9]Batch-7660 search ledger (this record): NavSource hull + sister-memoir pages; NHHC DANFS (Yaupon entry); NARA catalog; GAO product page; CourtListener (blocked); shipyards.json cross-check; French-name-conflict source sweep; secondary web litigation sweep [other_primary]
- Locator
- search_ledger rows sl-uss-pc-1146-pc1146-01 through -12
- Finding type
- historical_record
- Finding
- No qualifying ship-specific asbestos record located: no asbestos survey, abatement contract, hazmat disclosure, or verified litigation naming USS PC-1146 was found in the public sources searched. CAVEAT: CourtListener could not be queried this session - the authenticated helper reported the shared daily quota exhausted (~3.4 h to reset); logged as blocked in search_ledger, not as a negative result. Web sweeps surfaced no qualifying case and essentially no asbestos content at all for this hull - even the law-firm marketing 'asbestos aboard' listicles that cover named warships do not carry PC-1146.
- Verification
- verified
- Role
- negative_finding
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 2026-10-03
- Limitations
- Absence of a located public record does not prove absence of asbestos aboard - and the litigation repository search is a genuine open gap (throttled, not run). Deck logs and the digitized muster rolls (NAID 192287295) are the leads for crew identification. Does not establish or defeat any claim of exposure or legal eligibility.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-1146-pc1146-08
-
[10]Source-conflict documentation: NavSource PC-1146 and PC-1143 pages vs fringant.net French Navy service extracts (Trident: 'ex US PC 1146'; Glaive: dates matching PC-1143), uboat.net ship entries 8691/8688, Wikipedia escorteur lists, seaforces.org, postenavalemilitaire.com [other_primary]
- Locator
- NavSource 12/011146.htm + 12/011143.htm vs fringant.net/pagetrident.htm + /pageglaive.htm; uboat.net ship/8691.html + ship/8688.html
- Finding type
- historical_record
- Finding
- CONFLICT: sources split on this hull's French-service name. NavSource (with Wikipedia escorteur lists and seaforces.org) maps PC-1146 to Glaive (P 632) and sister PC-1143 to Trident (P 634). French naval-history sources - fringant.net's quoted French Navy service extract ('TRIDENT: Escorteur cotier ex US PC 1146. Transfere a la marine nationale le 2 mars 1951'), uboat.net, and postenavalemilitaire's Trident article - map PC-1146 to Trident and PC-1143 to Glaive (P 632); fringant's Glaive page carries PC-1143's exact US build dates (laid down 17 April 1943, launched 25 September 1943, commissioned 16 May 1944). The French mapping also yields the tidy pennant sequence PC-1143 -> P 632, PC-1144 -> P 633 (Mousquet - uncontested), PC-1146 -> P 634. All sources agree the hull transferred to France in 1951, served in Indochina, and became RVNS Tay Cây (HQ 05) in 1956 - only the French name/pennant is disputed. Carried per NavSource (this record's timeline source); conflict documented, not silently resolved.
- Verification
- partial
- Role
- correction
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1951-1956 (French service window)
- Limitations
- The Indochina combat narrative that fringant's Trident extract attaches to that name (Operation Eole, the Quang Khe post defense, Operation Camargue, 1951-53) belongs to this hull only if the Trident mapping is correct; it is NOT asserted for PC-1146 in this record. fringant.net is a French naval-history compilation quoting period service records - near-primary for the French period but not an English-registry source. postenavalemilitaire is itself internally inconsistent (its list maps Glaive to PC-1146 while its Trident article maps Trident to PC-1146).
- Atlas source
- true
- Evidence ID
- ev-uss-pc-1146-pc1146-09