Evidence
8 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-8).
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[1]research packet 867-packet.md (3 sources cited) [other_primary]
- Finding type
- vessel_history
- Finding
- Identity packet verdict: VERIFIED (hull number, name, and class confirmed by two independent sources).
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Evidence ID
- uss-pc-1200-pc1200-pkt-867-packet-md
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[2]NavSource Online: Submarine Chaser Photo Archive, PC-1200 - construction timeline, specifications, disposition, call sign [other_primary]
- Locator
- NavSource 12/011200.htm registry block, specifications block, photo table
- Finding type
- vessel_history
- Finding
- Documented for this hull: laid down 16 November 1942 by the Consolidated Shipbuilding Co., Morris Heights, NY; launched 23 January 1943; commissioned 29 May 1943; decommissioned 22 January 1946; struck from the Naval Register 20 March 1946; turned over to Commander Naval Base Newport, RI and run aground on Hens and Chickens Reef in Buzzards Bay and destroyed as a bombing target 21 October 1949. Specifications: PC-461-class submarine chaser; displacement 450 t.; length 173'8"; beam 23'; draft 10'10"; speed 20.2 kts; complement 65; armament one 3"/50 dual purpose gun mount, one 40mm gun mount, five 20mm guns, two rocket launchers, two depth charge tracks; propulsion two 1,440bhp Hooven-Owen-Rentschler R-99DA diesel engines, Westinghouse single reduction gear, two shafts. Call sign Nan-Queen-Easy-Able. One photograph (donor Kathy Breazeale).
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1942-1949
- Population
- Consolidated Shipbuilding construction trades (1942-43); crew (1943-46 USN, design complement 65)
- Limitations
- NavSource is a volunteer secondary compilation, not a primary registry; no DANFS entry exists to cross-check against (NavSource itself notes 'There is no DANFS History currently available for PC-1200'). Contains no asbestos or material content. The 1949 grounding/target destruction rests on this registry line; no wreck-survey or chart documentation located.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-1200-pc1200-01
-
[3]uboat.net Allied Warships, USS PC-1200 (PC-1200) - patrol craft of the PC-461 class; order date and commanding-officer list [other_primary]
- Locator
- uboat.net/allies/warships/8727.html warship data table and 'Commands listed' table
- Finding type
- vessel_history
- Finding
- Documented for this hull: ordered 27 February 1942; built by Consolidated Shipbuilding Corp. (Morris Heights, New York); laid down 16 November 1942; launched 23 January 1943; commissioned 29 May 1943. Commanding officers listed for the WWII period: Lt. Walter A. Smith, USNR (29 May 1943 - early 1944); Lt. J. R. Caton, USNR (early 1944 - early 1945); Lt. J. W. Middleton, USNR (early 1945 - late 1945).
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1942-1945
- Population
- USN/USNR crew, 1943-1945 (WWII CO window)
- Limitations
- Volunteer-compiled reference built from official records; corroborates NavSource on builder and milestones and adds the order date and CO roster, but carries no service narrative (the History field is blank) and no asbestos or material content.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-1200-pc1200-02
-
[4]U.S. Shipbuilding History (Tim Colton), Consolidated Shipbuilding, Morris Heights NY - yard history and per-hull construction table [other_primary]
- Locator
- shipbuildinghistory.com Consolidated Morris Heights page, construction table row 'PC 1200' (hull 3130) within the PC-461-class '463d' run
- Finding type
- historical_record
- Finding
- The Consolidated Shipbuilding Morris Heights construction table lists yard hull 3130: 'PC 1200 | US Navy | Sub Chaser | 463d | 173 | 29-May-43 | Sunk as target 1949' - corroborating builder, type (PC-461 '463d' group), delivery/commissioning date, and the 1949 target destruction. The yard history notes Consolidated Shipbuilding was formed from Gas Engine & Power Co. and Charles L. Seabury Co., operated at Morris Heights on Matthewson Road (site of present Roberto Clemente State Park), and after WWII bought the Robert Jacob and B. F. Wood yards on City Island and closed Morris Heights.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1942-1949
- Population
- Consolidated Shipbuilding Morris Heights construction trades (wartime)
- Limitations
- Independently compiled construction record (secondary), corroborating NavSource on builder, date, and target disposition. The '29-May-43' column is the yard's delivery date, coinciding with the commissioning date given by NavSource and uboat.net. Contains no asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-1200-pc1200-03
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[5]NARA (Southeast Region, Atlanta) finding aid, RG 181 - Naval Districts and Shore Establishments, General Correspondence - Seventh Naval District at Jacksonville, Florida, 1942-1945 (National Archives Identifier 6958238) [other_primary]
- Locator
- RG 181 NAID 6958238 finding aid, Box 1 / Folder 11 / file A4-1, June 1945 row ('PC 1171 relieved by PC 1200')
- Finding type
- historical_record
- Finding
- The finding aid's folder-level index names this hull: under Box 1, Folder 11, file code A4-1 'Status of vessels and aircrafts,' June 1945, the subject entry 'PC 1171 relieved by PC 1200' - contemporaneous Seventh Naval District (Jacksonville / Gulf Sea Frontier) correspondence documenting that PC-1200 relieved PC-1171 in the district in June 1945.
- Verification
- verified
- Role
- archival_lead
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1945
- Population
- Seventh Naval District staff and PC-1200 crew, June 1945
- Limitations
- Folder-level finding-aid index entry, not the underlying correspondence - the document itself is not digitized. Establishes a Seventh Naval District assignment as of June 1945 but no operating detail, no materials content, and no asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-1200-pc1200-04
-
[6]Era inference built on: NavSource specifications for this hull (two Hooven-Owen-Rentschler R-99DA diesels, twin shafts); shipbuildinghistory construction table; GAO HRD-80-2 Navy-wide asbestos-use documentation (ev-06) [other_primary]
- Locator
- NavSource specifications block; shipbuildinghistory construction table; GAO HRD-80-2 product page (ev-06)
- Finding type
- asbestos_application
- Finding
- A diesel-driven PC-461-class submarine chaser built November 1942 - May 1943 sits squarely inside the Navy's documented asbestos-use era (substitution did not begin until the early 1970s - GAO HRD-80-2). Era-standard applications aboard a small diesel patrol craft of this period were thermal insulation on machinery and diesel-exhaust runs, gaskets, valve packing, and electrical insulation, in a compact 173-foot steel hull with crew accommodations adjacent to machinery spaces. As a diesel ship she carried no boilers or steam turbines - the boiler/steam-line lagging pathway of steam vessels does not apply.
- Verification
- inferred
- Role
- supporting
- Documentation level
- class_or_era
- Accessed
- 2026-10-03
- Study period
- 1942-1949
- Population
- Consolidated Shipbuilding construction trades (1942-43); USN crew (1943-46); Naval Base Newport target-handling parties (1946-49)
- Limitations
- Class/era inference only - no hull-specific insulation survey, material list, build specification, or work package located for PC-1200. Names era-standard applications, not confirmed installed materials. No quantity. Product names are normalized era terms; no manufacturer attribution for this hull.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-1200-pc1200-05
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[7]GAO, Navy Efforts To Protect Workers From Asbestos Exposure, HRD-80-2 (Oct 18, 1979) [gao]
- Locator
- GAO product page HRD-80-2 (highlights text; full report PDF at gao.gov/assets/hrd-80-2.pdf)
- 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 (1942-43) and U.S. service era (1943-49, including target use).
- 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. Product page retrieved live this session (full-report PDF linked from the page); product-page description used. Standing gap shared with Batch 01/98/6243 records.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-1200-pc1200-06
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[8]Batch-7696 search ledger (this record): NavSource; uboat.net Allied Warships; shipbuildinghistory.com Consolidated table; NARA RG 181 Seventh Naval District finding aid; GAO product page; CourtListener API v4 (attempted); NARA catalog; Naval Vessel Register; Massachusetts BUAR exempted-shipwreck list; NOAA wreck/obstruction services; secondary web litigation sweep [other_primary]
- Locator
- search_ledger rows sl-uss-pc-1200-pc1200-01 through sl-uss-pc-1200-pc1200-11
- Finding type
- historical_record
- Finding
- No qualifying ship-specific asbestos record located in the sources searched this session: no asbestos survey, abatement contract, hazmat disclosure, or secondary-source 'asbestos aboard' claim naming PC-1200 was found (see search_ledger). The litigation sweep is INCOMPLETE: CourtListener opinion and docket searches could not be completed - the API returned HTTP 429 with a ~2.5-hour Retry-After (shared daily fleet quota exhausted), logged as blocked rather than as a negative result.
- 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 - a 1943-built naval vessel of this type sits in the documented asbestos era. The CourtListener litigation sweep remains open: name and hull-number queries must be re-run after the quota reset before 'no litigation naming this hull' can be asserted. The hull's 1949 destruction as a bombing target forecloses the survey/abatement paper trail that preserved U.S. museum ships sometimes generate. Does not establish or defeat any claim of exposure or legal eligibility.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-1200-pc1200-07