Evidence
10 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-10).
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[1]NavSource Online: Mine Warfare Vessel Photo Archive, YMS-366 - construction, specifications, striking, and loss note (live page verified 2026-10-04) [other_primary]
- Locator
- NavSource 11/19366.htm header block and specifications block
- Finding type
- vessel_history
- Finding
- Documented for this hull: YMS-1 Class Auxiliary Motor Minesweeper; laid down 10 December 1942 by the Wheeler Shipbuilding Corp., Whitestone, NY; launched 5 July 1943; completed 7 September 1943; 'Struck from the Naval Register 19 June 1946; Damaged beyond repair by hurricane, destroyed by burning 29 December 1947.' Spec block: displacement 270 t.; length 136'; beam 24'6"; draft 8'; speed 13 kts.; complement 50; armament one single 3"/50 gun mount; propulsion two 880 shp General Motors diesel engines, two shafts. Call sign NCRP (November-Charlie-Romeo-Papa). Page notes no DANFS history exists and no image of YMS-366 is available.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1942-1947
- Population
- Wheeler construction trades (1942-43); commissioning crew (Sep 1943); wartime crew 1943-46
- Limitations
- NavSource is a volunteer secondary compilation, not a primary registry - its milestone dates track NVR/DANFS-era data and agree with uboat.net and the Wheeler yard table here. The hurricane/burning loss note names no location; where the hull lay when damaged is unstated. Complement '50' conflicts with the class-typical ~32 and with sibling NavSource YMS pages (see gaps). Contains no asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-366-yms366-01
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[2]uboat.net Allied Warships, USS YMS-366 (YMS-366) - milestones table and Operation Oboe II (Balikpapan) order-of-battle and action narrative [other_primary]
- Locator
- uboat.net ship page 9785, milestones table and 'Notable events - 1 Jul 1945 - Operation Oboe II' narrative (order of battle, pre-'Fox' day minesweeping operations, 28 June YMS-47 rescue)
- Finding type
- vessel_history
- Finding
- uboat.net documents for this hull: ordered 13 April 1942; built by Wheeler Shipbuilding Corp. (Whitestone, Long Island, NY); laid down 10 December 1942; launched 5 July 1943; commissioned 7 September 1943; stricken 19 June 1946. Ship-specific events (Operation Oboe II, Allied landings at Balikpapan, Borneo NEI, 'Fox' day 1 July 1945): YMS-366 (Lt.(jg) T.J. Duncan, Jr., USNR) is listed in the YMS unit of TU 78.2.92 under Lt.Cdr. D.W. Blakeslee, USNR, within the TG 78.2.9 Minesweeping Unit under Lt.Cdr. T.R. Fonick, USNR. On 11 June 1945 ('Fox' day-20) 'A' echelon got underway from Morotai for Balikpapan including YMS-366; at 0642I/15 TU 78.2.92 arrived at the 100-fathom curve and the YMS commenced sweeping the approach track. On 28 June USS YMS-47 exploded an Allied influence mine under her stern; 'USS YMS-366 and USS YMS-49 assisted by LCVP's from USS Cofer, USS Kline and USS Schmitt succeeded in rescuing all personnel and in towing USS YMS-47 out of the mine field'; YMS-47 was taken alongside USS Scout for pumping and emergency repairs.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1942-1946 (milestones); 1945-06-11 to 1945-07-01 (Oboe II events)
- Population
- Crew under Lt.(jg) T.J. Duncan, Jr., USNR (Jun-Jul 1945 Balikpapan operations)
- Limitations
- uboat.net is a curated secondary database (Gudmundur Helgason); the Balikpapan event narrative is a transcription of the unit's after-action report (its source document is not individually identified on the page) - detailed and internally consistent but not itself the archival original; the deck logs (see ev-05) would be the primary record. The page prints the YMS unit as 'TU 72.2.92' once and 'TU 78.2.92' elsewhere - an apparent transcription slip; TG 78.2.9 is the parent echelon (see ev-03). No asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-366-yms366-02
-
[3]NHHC, Navy and Marine Corps Awards Manual (1953 revision), Part II Unit Awards, Section 1 Presidential Unit Citation, Group II - Task Unit 78.2.9 listing [nhhc_danfs]
- Locator
- Part II Unit Awards page, Section 1 PRESIDENTIAL UNIT CITATION (Group II, Navy Units and Squadrons), row 'Task Unit 78.2.9 ... USS YMS-366 ... 15 Jun-1 Jul 45 - Balikpapan, Borneo, Netherlands East Indies'
- Finding type
- historical_record
- Finding
- The Navy and Marine Corps Awards Manual (1953 rev.), Part II Unit Awards, lists Task Unit 78.2.9 under Section 1 (Presidential Unit Citation), Group II, for '15 Jun-1 Jul 45 - Balikpapan, Borneo, Netherlands East Indies' - the same 16-day minesweeping operation documented in ev-02. The unit's listed vessels include USS Sentry (AM-299), USS Scout (AM-296), USS Scuffle (AM-298), and twenty-one YMS hulls including USS YMS-366. Individual YMS hulls are named member vessels of the cited unit.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1945-06-15 to 1945-07-01 (cited period); manual revision 1953
- Population
- Crew aboard during the Balikpapan operation (15 Jun - 1 Jul 1945)
- Limitations
- Documents unit-level decoration covering this hull's participation in the Balikpapan sweep - not an individual award record and not a performance narrative. The listing situates the row in the Presidential Unit Citation section of the manual; citation text itself is not reproduced on the page. No asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-366-yms366-03
-
[4]DANFS, Bunch (DE-694) - postwar China-coast minesweeping operations narrative (Robert J. Cressman, 2005) [nhhc_danfs]
- Locator
- DANFS Bunch (DE-694) service narrative, January 1946 paragraph
- Finding type
- vessel_history
- Finding
- The DANFS entry for USS Bunch (DE-694/APD-79) documents YMS-366 in postwar Chinese waters: 'In January 1946, Bunch moved to Taichow, China, where she carried out minesweeping duties in cooperation with YMS-338, YMS-329, and YMS-366 before shifting to Wenchow Bay to do a minesweep radar plot.' This places this hull on the postwar China-coast mine-clearance effort in January 1946 alongside destroyer-escort support - consistent with the secondary campaign-credit data (ev-06) for Yulinkan Bay and East Hainan sweeping in February-March 1946.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1946-01
- Population
- Crew on postwar China-coast minesweeping duty (Jan 1946)
- Limitations
- Names this hull once, in passing, inside another vessel's DANFS entry - it documents presence and cooperating assignment at Taichow in January 1946, not YMS-366's own movements, tasking, or results. No asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-366-yms366-04
-
[5]National Archives Special List #44 - List of Logbooks of U.S. Navy Ships, Stations, and Miscellaneous Units, 1801-1947 (ship-number ordering), PDF page 119 [other_primary]
- Locator
- sl-44-ship-number.pdf p. 119, entry 'YMS-366 9/9/1943 - 6/30/1945'; RG 24 deck-log series per archives.gov logbook pages
- Finding type
- historical_record
- Finding
- NARA's official inventory lists one deck-log entry for YMS-366: coverage 9 September 1943 - 30 June 1945 - beginning two days after her commissioning (7 Sep 1943) and ending the day after 'Fox' day at Balikpapan (1 Jul 1945). The logs are held at NARA (Record Group 24 deck-log series).
- Verification
- verified
- Role
- archival_lead
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1943-09-09 to 1945-06-30
- Population
- Crew (1943-1945); names and daily movements inside the undigitized log
- Limitations
- Inventory entry only - the logbook itself is not digitized on the National Archives 'Navy Deck Logs Available Online' listing (checked 2026-10-04; YMS-366 does not appear there), so its contents are an unexamined primary source. The coverage window does not include her postwar China-coast sweeping (Nov 1945 - Mar 1946) or her final months before striking - log coverage and service dates must not be conflated. No asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-366-yms366-05
-
[6]Secondary reproduction of U.S. Navy WWII campaign/battle-star data (officialmilitaryribbons.com, 'Navy Ship World War 2 Campaign Battle Stars, YMS 362 to YMS 481') [other_primary]
- Locator
- Page block 'YMS 366:' - four credit rows (P37-3 Balikpapan 15 Jun-15 Jul 45; P207 21 Nov-16 Dec 45; P207-26 Yulinkan Bay 15 Feb-2 Mar 46; P207-27 East Hainan 1-2 Mar 46)
- Finding type
- historical_record
- Finding
- A secondary compilation of Navy campaign-credit data lists four engagements for YMS-366: P37-3 'Balikpapan operation', 15 June - 15 July 1945 - consistent with the Oboe II order of battle and PUC-unit listing (ev-02, ev-03); P207 'Minesweeping Operations Pacific', 21 November - 16 December 1945; P207-26 'Yulinkan Bay Area', 15 February - 2 March 1946; and P207-27 'East Hainan Area', 1 - 2 March 1946 - the postwar China-coast mine-clearance window consistent with the DANFS Bunch entry (ev-04).
- Verification
- partial
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1945-06-15 to 1946-03-02
- Population
- Crew (1945 Balikpapan; 1945-46 postwar China-coast sweeping)
- Limitations
- Commercial vendor page reproducing official Navy campaign-credit data - not itself an authoritative source; the underlying credit list is official but the reproduction is unverified against the OPNAV source document. The P37-3 credit is corroborated by ev-02/ev-03; the three P207-series credits are consistent with ev-04's January 1946 Taichow documentation but their exact date windows are unverified. No asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-366-yms366-06
-
[7]shipbuildinghistory.com (Tim Colton), Wheeler Shipbuilding, Whitestone NY yard table - YMS-366 build row [other_primary]
- Locator
- shipbuildinghistory.com/emergencysmall/wheelerw.htm yard table, row 'YMS 366'
- Finding type
- historical_record
- Finding
- The Wheeler Shipbuilding (Whitestone NY) yard table carries the row 'YMS 366 | US Navy | Minesweeper | 278 | 136 | 7-Sep-43 | Struck 1946' - independent corroboration of the builder, the 7 September 1943 completion/delivery date, and the 1946 striking, matching NavSource (ev-01) and uboat.net (ev-02). The same table shows the Wheeler Whitestone yard built the YMS 363-370 block plus earlier YMS and BYMS hulls.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1942-1946
- Population
- Wheeler Whitestone construction trades (1942-43)
- Limitations
- A researcher's yard compilation (Colton), not a yard archive - consistent with NavSource and uboat.net on all three datapoints for this hull. The page's company history notes the Whitestone yard was the second Wheeler yard (the Brooklyn plant built a separate series) and closed in 1948. Contains no asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-366-yms366-07
-
[8]GAO, Navy Efforts To Protect Workers From Asbestos Exposure, HRD-80-2 (Oct 18, 1979) - product-page highlights [gao]
- Locator
- GAO product page HRD-80-2, Highlights section (full report PDF blocked, HTTP 403)
- Finding type
- gov_survey
- Finding
- GAO reviewed the Navy's efforts to protect workers from asbestos exposure at the Long Beach and Norfolk Naval Shipyards, including 'the use of asbestos in Navy ships'; the product-page highlights document that the Navy's 1975 policy was to 'remove and replace with nonasbestos materials only insulation that was damaged or had to be removed to accomplish necessary repairs,' modified in 1979 to selectively replace asbestos insulation in high-maintenance areas - i.e., asbestos insulation was present and managed (not systematically removed) aboard Navy ships through the era covering this hull's construction (1942-43) and U.S. service (1943-46).
- 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 from the product-page highlights; supports era context only, not any fact specific to this hull - the reviewed fieldwork yards were Long Beach and Norfolk, not Wheeler. Full report text not retrieved (gao.gov/assets PDF returns HTTP 403 to automated fetch, confirmed 2026-10-04).
- Atlas source
- true
- Evidence ID
- ev-uss-yms-366-yms366-08
-
[9]Era inference built on: NavSource spec block (2 x GM diesels, 880 shp; YMS-1-class auxiliary motor minesweeper per page header - wooden-hulled 'yard minesweeper' type built across 35 yacht yards, class context); uboat.net class page; GAO HRD-80-2 (see ev-08) [other_primary]
- Locator
- NavSource 11/19366.htm spec block and class description; uboat.net YMS class data
- Finding type
- asbestos_application
- Finding
- A wooden-hulled diesel-powered motor minesweeper built 1942-43 sits inside the Navy's documented asbestos-use era; era-standard applications aboard a small diesel combatant of this type and period were exhaust-system lagging, machinery and engine gaskets, valve packing, electrical insulation, and brake linings on winch and sweep gear. As a diesel vessel she carried no steam plant - the boiler/turbine lagging pathway of steam vessels does not apply - and her wooden hull lacked the pipe runs and hull insulation typical of steel steam ships, narrowing (not eliminating) the era-typical asbestos applications.
- Verification
- inferred
- Role
- supporting
- Documentation level
- class_or_era
- Accessed
- 2026-10-04
- Study period
- 1942-1947
- Population
- Wheeler construction trades (1942-43); crew (1943-46); any yard trades handling the hurricane-damaged hulk and 1947 burning
- Limitations
- Class/era inference only - no hull-specific insulation survey, material list, or work package located for YMS-366. 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-yms-366-yms366-09
-
[10]Batch-8999 search ledger (this record): NavSource; uboat.net; NHHC awards manual (PUC listing); DANFS Bunch (DE-694); NARA Special List 44 PDF; NARA digitized-deck-log listing; NHHC DANFS probe; NVR live probe; officialmilitaryribbons battle-star compilation; shipbuildinghistory Wheeler table; NavalCoverMuseum probe; NHHC Pacific Fleet organization page; HyperWar minecraft page; secondary web litigation sweep; CourtListener (status per search_ledger) [other_primary]
- Locator
- search_ledger rows sl-uss-yms-366-yms366-01 through -16
- Finding type
- historical_record
- Finding
- No qualifying ship-specific asbestos record located: no asbestos survey, abatement contract, hazmat disclosure, or verified litigation naming USS YMS-366 was found in the public sources searched. CourtListener was partially searched: "USS YMS-366" opinion (2 hits, both Texas criminal cases = name collisions, not vessel- or asbestos-related), "YMS-366" docket (4,030 loose-match hits on a high-collision hull token; the sampled page contained only unrelated dockets), and the justified "YMS-366 asbestos" docket variant (393 loose-match hits, none naming this vessel in the sampled page) completed; the remaining pair of base queries returned the fleet-pacing diagnostic on every attempt (see search_ledger). Secondary web sweeps surfaced only generic law-firm mesothelioma marketing content - no page asserting asbestos aboard this specific hull was located among the results reviewed, and all marketing/listicle sources are excluded by source policy regardless. No asbestos documentation was located for the builder yard either (no Wheeler Shipbuilding asbestos material found in the sweep).
- 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 - and the litigation repository search is only a partial negative: two of four base queries remain unsearched (blocked), and the completed queries are loose-match index hits that cannot prove a negative by themselves. The undigitized deck log (NARA), Wheeler work packages, and any disposal/burning records are open leads. Does not establish or defeat any claim of exposure or legal eligibility.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-366-yms366-10