Evidence
11 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-11).
-
[1]research packet 963-packet.md [other_primary]
- Finding type
- vessel_history
- Finding
- Identity packet verdict: USS PCS-1410 → **MISMATCH (RE-SCOPE signal: real identity YMS-457)
- Verification
- verified
- Role
- correction
- Documentation level
- ship_specific
- Evidence ID
- uss-yms-457-pkt-963-packet-md
-
[2]NavSource Online: Mine Warfare Vessel Photo Archive, YMS-457 (ex-PCS-1410) - designation timeline, specifications, Soviet service, disposal (verified live 2026-10-04) [other_primary]
- Locator
- NavSource 11/19457.htm header designation line, chronology block, specifications block
- Finding type
- vessel_history
- Finding
- NavSource timeline for this hull: 'Planned as Patrol Craft Sweeper, PCS-1410 but reclassified as an Auxiliary Motor Minesweeper, YMS-457, 26 September 1943. Laid down 17 November 1943 by the Greenport Basin and Construction Co., Greenport, NY. Launched 8 January 1944. Completed 13 September 1944. Transferred to the Soviet Union 31 March 1945 and reclassified T-182. Assigned to the Northern Pacific Fleet 28 June 1945. Placed out of service 18 December 1954 and used as a diving boat. Reclassified VM-77, 12 January 1955. Laid up 12 March 1955. Scrapped 11 July 1956.' Specifications: displacement 270 t.; length 136'; beam 24'6"; draft 8'; speed 15 kts.; complement 32; armament one 3"/50 dual purpose gun mount, two 20mm mounts, two depth charge projectors; propulsion two 880bhp General Motors 8-268A diesel engines, Snow and Knobstedt single reduction gear, two shafts. Call sign NQYH (Nan-Queen-Yoke-How). Page states 'There is no DANFS History currently available for YMS-457.' Two photographs carried: T-182 (from S.S. Berezhnoi, 'Flot SSSR, Korabli i suda lendliza' - Soviet Navy Lend-Lease Warships and Vessels) and VM-77 (from 'Soviet Navy in World War II').
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1943-1956
- Population
- Greenport construction trades (1943-44); U.S. Navy crew (1944-45); Soviet Navy crew (1945-56)
- Limitations
- NavSource is a volunteer secondary compilation, not a primary registry; milestone dates generally track official records but this page contains one verified error - 'Northern Pacific Fleet' for the 28 June 1945 fleet assignment, contradicted by the Russian-language record placing the hull at Ronne (Bornholm) in the Baltic Fleet on that date (see ev-02, ev-05). Reclassification date '26 September 1943' conflicts with the 27 September 1943 figure carried in fleet fact-QA scoping and on some sister-hull pages - see gaps. No asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-457-01
-
[3]sewar.ru (Soviet WWII weapons encyclopedia, citing Berezhnoi 'Korabli i suda VMF SSSR 1928-45' and Skorokhod), T-182 class-YMS page - Soviet-service record for ex-YMS-457 (verified live 2026-10-04) [other_primary]
- Locator
- sewar.ru tralschiki page 1386, T-182 chronology paragraph
- Finding type
- vessel_history
- Finding
- Soviet-side record for this hull (translated): 'Type YMS. T-182 (until 19.10.1944 YMS-457; since 12.01.1955 VM-77). Laid down 17.11.1943 (Greenport, USA), launched 8.01.1944, entered service 14.09.1944. 31.03.1945 accepted by a Soviet crew against lend-lease deliveries; 28.06.1945 arrived at Ronne (Bornholm Island) and joined the KBF (Red Banner Baltic Fleet). 18.12.1954 withdrawn from the combat fleet, disarmed and reclassified; 12.03.1955 laid up; 11.07.1956 removed from the Navy list for transfer to the surplus property department.' The T-182 designation was thus reserved/assigned 19 October 1944, before the transfer itself.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1944-1956
- Population
- Soviet Navy crew, Baltic Fleet (1945-56)
- Limitations
- Russian-language secondary compilation citing the standard references (Berezhnoi 1988, Skorokhod 2003) - the strongest Soviet-service detail available but not a primary document. Its Baltic Fleet assignment (Ronne, Bornholm) is geographically coherent and contradicts NavSource's 'Northern Pacific Fleet' label - Baltic carried. 'Entered service 14.09.1944' differs by one day from U.S. sources (13 Sep) - see gaps. No asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-457-02
-
[4]uboat.net Allied Warships of WWII, USS YMS-457 (YMS-457) - order, construction, commissioning, transfer dates (verified live 2026-10-04) [other_primary]
- Locator
- uboat.net ship 9873 data block
- Finding type
- vessel_history
- Finding
- uboat.net data block for this hull: Navy - US Navy; type - minesweeper, class YMS; built by Greenport Basin and Construction Co. (Greenport, Long Island, NY); ordered 16 November 1942; laid down 17 November 1943; launched 8 January 1944; commissioned 13 September 1944; end service 31 May 1945; history - 'Transferred to the USSR on 31 May 1945'; former name PCS-1410. No commanding officers listed; no wartime events filed for this hull.
- Verification
- partial
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1942-1945
- Population
- U.S. Navy crew (1944-45)
- Limitations
- Volunteer secondary database; the 'ordered 16 Nov 1942' and 'commissioned' wording are unique contributions not in other located sources. Its 'end service / transferred 31 May 1945' conflicts with the Russian-language record's 31 March 1945 Soviet acceptance - the earlier date carried (Soviet-crew acceptance is the more specific, better-sourced event); both dates logged in gaps. No U.S.-service activity detail. No asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-457-03
-
[5]Shipbuilding History (shipbuildinghistory.com mirror), Greenport Basin & Construction Co. yard output table - PCS-1410 delivery row and yard history (verified live 2026-10-04) [other_primary]
- Locator
- shipbuildinghistory.njscuba.net Greenport page, yard-history paragraph and PCS-1405/1412 delivery rows
- Finding type
- vessel_history
- Finding
- Yard output table, Greenport Basin & Construction Co., Greenport NY (yard founded mid-19th century by Pliny C. and Theodore W. Brigham building fishing vessels and yachts; acquired neighbor Greenport Shipyard Company during WWII and expanded into steel boatbuilding - the yard's LCM(3) landing craft of 1943-44 are noted as its 'first steel vessels', confirming wood construction for the YMS hulls). PCS-1410 row: 'US Navy | subchaser | 278d | 136 | 13 Sep 1944 | completed as YMS-457, to the USSR 1945 as T-192, SBR-125 1958, struck 1959.' Sister rows document the same yard sequence: PCS-1406->YMS-453 (T-189), PCS-1407->YMS-454 (lost in typhoon off Okinawa Oct 1945), PCS-1408->YMS-455 (T-190), PCS-1409->YMS-456 (T-191), PCS-1411->YMS-458 (sold 1947), PCS-1412->YMS-459 (destroyed 1946).
- Verification
- partial
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1943-1944
- Population
- Greenport construction trades (1943-44)
- Limitations
- Secondary yard-list compilation; confirms Greenport construction, the 13 Sep 1944 delivery/completion date, and the PCS->YMS reclassification program - but its 'T-192, SBR-125 1958, struck 1959' Soviet tail is wrong for this hull: T-192 was ex-YMS-466 (built at Gibbs Gas Engine Co., Jacksonville; Black Sea Fleet) per the Russian-language record. Correct Soviet number is T-182 (see ev-02, ev-05). No asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-457-04
-
[6]Correction cross-check: NavSource 11/19457 (T-182); sewar.ru T-182 page (ex-YMS-457, Baltic); fleetphoto.ru vessel 127250 (T-182 from 19.10.1944, ex-YMS-457); sewar.ru T-192 page (ex-YMS-466, Black Sea Fleet); kchf.ru Black Sea Fleet minesweeper list (T-187..T-192 incl. T-189 SBR-123, T-190 SBR-124); war-russia.info lend-lease YMS distribution note (6 Baltic, 6 Black Sea, 31 Pacific of 43 transferred); Wikipedia Project Hula (Cold Bay transfers 17 May-3 Sep 1945, YMS series T-521..T-611) - cross-check only [other_primary]
- Locator
- sewar.ru pages 1386 (T-182) and 1396 (T-192); fleetphoto.ru/vessel/127250; kchf.ru/eng/ship/minewarfare; war-russia.info YMS list; en.wikipedia.org/wiki/Project_Hula (cross-check)
- Finding type
- historical_record
- Finding
- CORRECTIONS carried: (1) Soviet number is T-182, not the 'T-192' printed by shipbuildinghistory - T-192 was ex-YMS-466, a different hull that went to the Black Sea Fleet (SBR-180, struck 17 Nov 1959). (2) Fleet assignment was the Red Banner Baltic Fleet (KBF): she arrived at Ronne, Bornholm Island, 28 June 1945 - Bornholm is in the Baltic Sea and was Soviet-occupied 1945-46; NavSource's 'Northern Pacific Fleet' for that date is an error. (3) This was NOT a Project Hula transfer: Hula was the Cold Bay, Alaska, program whose YMS transfers ran 17 May-3 September 1945 as T-521 through T-611; YMS-457 was accepted by a Soviet crew 31 March 1945 - before the first Hula transfer and on the wrong coast - as one of the six YMS sent to the Baltic Fleet under direct lend-lease allocation (war-russia.info, citing Berezhnoi/Skorokhod: 6 Baltic, 6 Black Sea, 31 Pacific of 43 YMS transferred).
- Verification
- partial
- Role
- correction
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1945
- Limitations
- Corrects three circulating attribution errors; rests on the Berezhnoi-lineage Russian sources plus the Hula transfer list - consistent across three independent secondary compilations. Does not establish the Atlantic transfer's port, convoy, or voyage details (undocumented - see gaps). No asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-457-05
-
[7]HyperWar/ibiblio transcription of NHHC 'Ships of the U.S. Navy, 1940-1945', minecraft section - YMS class description, class specification block, and hull index listing YMS-457 (verified live 2026-10-04) [other_primary]
- Locator
- ibiblio HyperWar ships-dm.html, 'YMS -- Motor Minesweepers' section (class narrative, spec block, hull table)
- Finding type
- historical_record
- Finding
- NHHC-derived minecraft index lists this hull ('YMS-457', 1942-5 group) and documents the class: 'The wood-hulled YMS proved to be one of the U.S. Navy's more durable and versatile types...' Class spec block: displacement 320 tons (full); length 136'; beam 24'6"; draft 6'1"; speed 13 knots; armament 1 3"/50, 2 20mm, 2 depth charge tracks + 2 extensions, 2 depth charge projectors; complement 4 officers, 29 crew; diesel engines, twin screws, 500 h.p. Class note: the only significant variation was appearance - YMS-1 through 134 had two stacks, YMS-135 through 445, 480, and 481 had one, while YMS-446 through 479 had none (this hull is in the stack-less group, consistent with its PCS-derived design).
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1941-1969
- Population
- class-level
- Limitations
- Class-level specification block (320t full-load displacement, 13-knot speed, 500-hp rating, 33-man complement) differs from the NavSource hull-page block (270t, 15 kts, 2x880bhp, 32) - both are carried, variance logged in gaps; neither is a hull survey. The index confirms the hull's existence and class assignment only - no per-hull history. No asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-457-06
-
[8]Era inference built on: NavSource specifications (2 x GM 8-268A diesels, single reduction gear, twin shafts); NHHC-derived class description (wood-hulled YMS type); shipbuildinghistory yard table (Greenport's wooden-vessel output; steel boatbuilding only began there with the 1943-44 LCM(3)s); GAO HRD-80-2 (see ev-08) [other_primary]
- Locator
- NavSource specifications block; NHHC-derived class narrative; GAO HRD-80-2 program context
- Finding type
- asbestos_application
- Finding
- A wood-hulled diesel minesweeper completed September 1944 sits inside the Navy's documented asbestos-use era; era-standard asbestos applications aboard a small diesel craft of this type and period were diesel exhaust lagging, gaskets, valve packing, and electrical insulation - with no steam plant, the boiler/turbine lagging pathway of steam vessels does not apply, and her wood hull carries a materially lighter outfit than steel steam-driven hulls. Asbestos aboard this hull is a reasonable era-consistent inference only.
- Verification
- inferred
- Role
- supporting
- Documentation level
- class_or_era
- Accessed
- 2026-10-04
- Study period
- 1943-1956
- Population
- Greenport construction trades (1943-44); U.S. Navy crew (1944-45); Soviet Navy crew (1945-56); Soviet disposal workers (1956)
- Limitations
- Class/era inference only - no hull-specific insulation survey, material list, or work package located for YMS-457. Names era-standard applications, not confirmed installed materials. No quantity. Product names are normalized era terms; no manufacturer attribution for this hull. Soviet-service-era refits/additions are undocumented.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-457-07
-
[9]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 U.S. construction and service period (1943-45).
- Verification
- verified
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-10-04
- 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 2026-10-04) - content via product-page description.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-457-08
-
[10]Batch-8328 search ledger (this record): NavSource hull page and YMS index; sewar.ru T-182 record; uboat.net data block; shipbuildinghistory Greenport table; HyperWar/NHHC minecraft index; fleetphoto.ru and kchf.ru cross-checks; NHHC/DANFS site search; NVR; NARA deck-log lead; CourtListener (status in ledger); secondary web asbestos sweep [other_primary]
- Locator
- search_ledger rows sl-uss-yms-457-01 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 YMS-457 (PCS-1410 / T-182 / VM-77) was found in the public sources searched. A 'YMS-457 asbestos' web sweep surfaced no qualifying hit - not even the law-firm marketing listicles that typically cover Navy hulls (only an unrelated OCR dictionary collision). CourtListener: all four prescribed base queries ('USS YMS-457' opinion and docket, 'YMS-457' opinion and docket) ran this session through the authenticated helper and returned zero results - no qualifying case, no name collision, a negative finding.
- Verification
- verified
- Role
- negative_finding
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 2026-10-04
- Limitations
- Absence of a located public record does not prove absence of asbestos aboard. Deck logs (Sep 1944-Mar 1945 U.S. service), BuShips construction records, and Soviet-era documentation are undigitized leads. Does not establish or defeat any claim of exposure or legal eligibility.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-457-09
-
[11]NARA RG 24 deck logs (lead): U.S.-service deck logs for YMS-457, September 1944 - March 1945; BuShips construction/reclassification records for PCS-1410; Soviet-era records (Baltic Fleet) in Russian archives [other_primary]
- Locator
- NARA RG 24 deck-log series (undigitized); BuShips records; Russian naval archives (KBF)
- Finding type
- historical_record
- Finding
- Archival leads not yet developed: (1) NARA RG 24 deck logs for this hull's ~6.5 months of U.S. Navy service (13 Sep 1944 - 31 Mar 1945) - the only U.S.-service window and entirely undocumented in located sources; (2) Bureau of Ships/PCS-1376-class construction and the 26-27 September 1943 PCS->YMS reclassification order - would resolve the reclassification-date conflict; (3) Soviet archival record of the Atlantic lend-lease crossing and Baltic Fleet service (KBF records) - would document the transfer convoy and any Soviet refit.
- Verification
- unverified
- Role
- archival_lead
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1943-1956
- Population
- U.S. Navy crew (1944-45); Soviet Navy crew (1945-56)
- Limitations
- Leads only - none of these record groups was retrieved this session; RG 24 P118-era deck logs are not publicly digitized. Their existence is inferred from standard record-keeping practice, not verified against a catalog entry.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-457-10