USS SC-532

Evidence

12 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-12).

1. [1]DANFS, 'SC-501 - SC-600' (NHHC ship-histories volume, live page verified 2026-10-03) [nhhc_danfs]

   Locator

   DANFS 'SC-501 - SC-600' page, SC-532 entry

   Finding type

   vessel_history

   Finding

   Official DANFS entry for this hull, verbatim: 'Built at Luders Marine Const. Co., Stamford, Conn. Keel laid 4/19/41. Launched 4/7/42. Commissioned 5/20/42. Transferred to France 11/16/44.' The combined DANFS volume covers hulls SC-501 through SC-600 with one-line entries; SC-532's entry is limited to construction data and the 1944 transfer - no service narrative, specifications, or French-era detail.

   Verification

   verified

   Role

   context

   Documentation level

   ship_specific

   Accessed

   2026-10-03

   Study period

   1941-1944 (entry coverage)

   Population

   Luders Marine construction trades (1941-42); crew (1942-44)

   Limitations

   Ship-specific construction/transfer facts only - no asbestos, material, crew, or operational content. Entry does not mention the PC-532 commissioning designation shown by NavSource, nor the April 1943 PC-to-SC reclassification. Does not document French-era service, US striking action, or final disposition.

   Atlas source

   true

   Evidence ID

   ev-uss-sc-532-sc532-01

2. [2]NavSource Online: Submarine Chaser Photo Archive, SC-532 ex-PC-532 (page 12/150532.htm, live fetch verified 2026-10-03) [other_primary]

   Locator

   NavSource 12/150532.htm header block and specifications block

   Finding type

   vessel_history

   Finding

   NavSource timeline for this hull: laid down 19 April 1941 by Luders Marine Construction Co., Stamford, CT; launched 7 April 1942; commissioned USS PC-532, 20 May 1942; reclassified SC-532 in April 1943; transferred to France 16 November 1944 and reclassified CH-103; 'Fate unknown.' Call sign Nan-Able-Xray-Sugar. Specifications: displacement 148 t.; length 110' 10"; beam 17'; draft 6' 6"; speed 15.6 kts.; complement 28; armament one 40mm mount, two .50 cal. machine guns, two depth charge projector 'Y Guns,' two depth charge tracks; propulsion two 880bhp General Motors 8-268A diesel engines, Snow and Knobstedt single reduction gear, two shafts. Page states 'There is no DANFS history available for SC-532' - now outdated, since the NHHC combined DANFS volume for SC-501-SC-600 (ev-01) does carry an SC-532 entry.

   Verification

   verified

   Role

   context

   Documentation level

   ship_specific

   Accessed

   2026-10-03

   Study period

   1941-1952

   Population

   Luders Marine construction trades (1941-42); USN crew complement ~28 (1942-44); French crew (1944-52)

   Limitations

   NavSource is a volunteer secondary compilation, not a primary registry - its milestones are corroborated for this hull by DANFS (ev-01), uboat.net (ev-03), and shipbuildinghistory (ev-05). The 'commissioned USS PC-532' framing reflects the administrative PC designation the 110-foot wooden chasers carried until the class-wide April 1943 reclassification to SC; the hull was an SC-497-class wooden subchaser throughout - she was never a PC-461-class steel patrol craft. 'Fate unknown' refers to post-transfer disposal, partially resolved by secondary French-disposal data (ev-06). No asbestos content.

   Atlas source

   true

   Evidence ID

   ev-uss-sc-532-sc532-02

3. [3]uboat.net Allied Warships of WWII, USS SC-532 (SC-532) ship page (live fetch verified 2026-10-03) [other_primary]

   Locator

   uboat.net ship/8835 page, facts table and 'Commands listed' section

   Finding type

   vessel_history

   Finding

   uboat.net record for this hull: ordered 1 April 1941; laid down 19 April 1941; launched 7 April 1942; commissioned 20 May 1942; end service 16 November 1944 - 'Transferred to France on 16 November 1944 being renamed CH-103.' Wartime commanding officers listed: Lewis Michael Andrews, Jr., USNR (20 May 1942 - late 1942); H. S. Peterson, USNR (late 1942 - mid/late 1943); Joseph K. Carrier, USNR (mid/late 1943 - mid 1944); Carter W. Mott, USNR (mid 1944 - 16 Nov 1944).

   Verification

   verified

   Role

   context

   Documentation level

   ship_specific

   Accessed

   2026-10-03

   Study period

   1941-1944

   Population

   Commanding officers and crew, 1942-44 (USNR officers typical of SC manning per class context)

   Limitations

   Secondary compilation (uboat.net Allied Warships database); milestone dates corroborated by DANFS and NavSource. The commissioning CO name spelling 'Lewis Michael Andrews, Jr.' is per uboat.net's commanders database - rank/grade not shown. No asbestos content; no French-era detail beyond the transfer date.

   Atlas source

   true

   Evidence ID

   ev-uss-sc-532-sc532-03

4. [4]U.S. Army Signal Corps photograph SC 180046, Gulf of Salerno (NARA Record Group 111; digitized copy via Signal Corps Archive on Flickr, Wikimedia Commons file page, and NavSource 12/150532.htm image set) [other_primary]

   Locator

   Signal Corps photo SC 180046 (RG 111); NavSource images 1215053201.jpg and 1215053202.jpg; Wikimedia Commons file page for SC 180046

   Finding type

   historical_record

   Finding

   Ship-specific operational documentation: Signal Corps photographs place this hull in the Gulf of Salerno during the Allied amphibious assault (Operation Avalanche). The images show USS SC-532 (hull number painted on bow) in the foreground with minesweeper USS YMS-24, light cruiser HMS Delhi (D 47), and an unidentified LST, under the protective smoke screen laid by U.S. and British destroyers - the Northern Assault Force area of British X Corps. The original Signal Corps caption for SC 180046 reads 'Invasion fleet nears Italian shore, below Salerno, under protective smoke screen laid down by U.S. and British destroyer. 18 September, 1943.'; NavSource and the Images of War book caption carry the same scene dated 9 September 1943 (D-day). DATE CONFLICT between the original caption (18 Sep) and the secondary captioning (9 Sep) - see gaps.

   Verification

   partial

   Role

   archival_lead

   Documentation level

   ship_specific

   Accessed

   2026-10-03

   Study period

   September 1943

   Population

   SC-532 crew (~28) at Salerno; embarked control/beach personnel typical of the type

   Limitations

   Archival lead / presence documentation only: the photographs establish the hull's presence in the Gulf of Salerno in September 1943, not her assigned task group or any specific action. SC-497-class chasers commonly served as landing control craft (see ev-07 class context) but no operational record names SC-532's specific role at Salerno. NARA catalog identifier for SC 180046 not located this session (catalog.archives.gov is JS-rendered; API requires key) - Signal Corps number is the archival handle. No asbestos content.

   Atlas source

   true

   Evidence ID

   ev-uss-sc-532-sc532-04

5. [5]HyperWar/ibiblio transcription, 'Ships of the U.S. Navy, 1940-1945 - SC Submarine Chasers' (compiled from official Navy register data; live fetch verified 2026-10-03) [other_primary]

   Locator

   ships-sc.html, 'SC-497 Class' spec block and hull table, SC-532-535 row

   Finding type

   vessel_history

   Finding

   Official-derived register listing covering this hull: the SC-497-class table lists 'SC-532-535' in the 1942-44 commissioning-era block with the note 'Lend-Lease to France' - corroborating the transfer mechanism (Lend-Lease) and the French disposition documented ship-specifically by DANFS (11/16/44). Class-level spec block on the same page: SC-497 class, 98 tons displacement, 110'10" length, 17' beam, 6'6" draft, 20 knots, 1 3"/50 gun + 2x2 .50-cal machine guns, complement 2 officers/20 enlisted, diesel engines twin screws 1,200 shaft hp.

   Verification

   verified

   Role

   context

   Documentation level

   ship_specific

   Accessed

   2026-10-03

   Study period

   1942-1945 (register coverage)

   Population

   Crew (1942-44)

   Limitations

   Range-level register entry (SC-532-535 grouped, not individually itemized). Class spec block conflicts with NavSource's ship-page specs for this hull (148 t vs 98 t displacement; 15.6 vs 20 kts; complement 28 vs 22; armament fit evolved in service - 40mm replacing the 3" gun) - wartime mods and differing displacement conventions; not carried as spec truth. No asbestos content.

   Atlas source

   true

   Evidence ID

   ev-uss-sc-532-sc532-05

6. [6]ShipbuildingHistory (Tim Colton compilation), 'Luders Marine, Stamford CT' yard table + 'Sub Chasers PC SC PCE PCS WWII' build table (shipbuildinghistory.com/smallships/pc2.htm; both live-verified 2026-10-03) [other_primary]

   Locator

   luders.htm yard table row 'SC 532'; pc2.htm SC build table row 'SC 532'

   Finding type

   vessel_history

   Finding

   Builder-list record for this hull: Luders yard table lists 'SC 532 | US Navy | Sub Chaser | 136d | 110 | 20-May-42 | To France 1944 as Ch. 103, later P 729, condemned 1952' - delivery 20 May 1942 (consistent with the commissioning date), French transfer 1944 as Ch. 103, later redesignated P 729, condemned 1952. Yard history on the same page: Luders Marine Construction founded by Alfred E. Luders in 1908 at Byram, CT; moved 1912 to Harbor Drive, Stamford Harbor; the yard closed in 1968 and the site was later operated as Brewer Yacht Haven Marina.

   Verification

   verified

   Role

   context

   Documentation level

   ship_specific

   Accessed

   2026-10-03

   Study period

   1941-1952

   Population

   Luders Marine construction trades (1941-42); French crew (1944-52); disposal population unknown

   Limitations

   Secondary compilation built from Maritime Commission/Navy build data - the standard reference for yard-level build/disposal tables, but not a primary register. 'Condemned 1952' is the French-side disposal action; the mechanism (scrap, sale, hulk) and any US-side permanent-transfer action are not itemized. No asbestos content.

   Atlas source

   true

   Evidence ID

   ev-uss-sc-532-sc532-06

7. [7]Poste Navale Militaire (French naval postal-history association forum), ship record 'CHASSEUR CH 103 (1944/1952)' - corroborated at class level by navypedia CH5 table (navypedia.org/ships/france/fr_es_sc.htm) [other_primary]

   Locator

   postenavalemilitaire.com t5798 ship record; navypedia fr_es_sc.htm CH5 table

   Finding type

   vessel_history

   Finding

   French-service record for this hull: 'Chasseur de Sous-marins de l'U.S Navy SC-532, transfere a la Royale en novembre 1944. Il prend le nom de P 729 lorsqu'il devient Patrouilleur' - in French naval service as CH 103 from 16 November 1944, redesignated P 729 on conversion to patrol vessel status, 'Desarme: 20 aout 1952' (decommissioned 20 August 1952). French-era specs per the same record: 110 t, 33.70 m, 5.70 m beam, 2 m draft, 1,000 cv, 15.6 kts, 28 crew, 1 x 40mm + 3 x 20mm guns. navypedia lists 'Ch103 (ex-SC532, ex-PC532) ... stricken 1950' - a two-year conflict with the 1952 disposal date carried here (see gaps).

   Verification

   partial

   Role

   context

   Documentation level

   ship_specific

   Accessed

   2026-10-03

   Study period

   1944-1952

   Population

   French crew (~28 per French record), 1944-52

   Limitations

   Secondary/association compilation - postenavalemilitaire.com is a naval postal-history community site posting standardized ship datasheets; the 20 August 1952 date is specific but not primary-verified; navypedia's 'stricken 1950' conflicts. No French unit assignment, operating area, or commanding officers located - French-era service narrative is an open gap. No asbestos content.

   Atlas source

   true

   Evidence ID

   ev-uss-sc-532-sc532-07

8. [8]splinterfleet.org (Theodore R. Treadwell, author of 'Splinter Fleet: The Wooden Subchasers of World War II') class-role description; corroborated by Patrol Craft Sailors Association ww2pcsa.org/subchaser.html (both live-verified 2026-10-03) [other_primary]

   Locator

   splinterfleet.org home page class narrative; ww2pcsa.org/subchaser.html SCC section; en.wikipedia.org Operation Avalanche naval order of battle

   Finding type

   historical_record

   Finding

   Class-level operational context: SC-497-class wooden subchasers 'were ideally suited for landing control work in hundreds of amphibious landings in the Mediterranean and the Pacific. Quiet in operation, maneuverable, and with their shallow draft, the SCs could get in close to the beaches and guide the waves of landing boats assaulting the beachhead, after which they served as a communication center for beachmasters and landing control officers. In the days following the landing they would patrol the area, lay smoke screens, rescue downed pilots, ferry personnel and perform other necessary duties' (splinterfleet.org). PCSA describes the same Beach Control Craft (SCC) role guiding landing craft in 'North Africa, Sicily, Italy and France.' This is the documented operational context for SC-532's photographed presence at Salerno (ev-04) - 23 wooden-hulled subchasers were assigned to the Northern Attack Force order of battle at Salerno (secondary OOB compilation citing Morison vol. IX).

   Verification

   verified

   Role

   context

   Documentation level

   class_or_era

   Accessed

   2026-10-03

   Study period

   1943-1944

   Population

   SC crews in Mediterranean amphibious operations (class level)

   Limitations

   Class-level operational context, not a ship-specific assignment record - SC-532's individual role at Salerno (control craft, screen, or other duty) is not named in located sources. The Wikipedia-derived OOB count (23 wooden subchasers, Northern Attack Force) is secondary; Morison's official-history text does not itemize SC hulls. No asbestos content.

   Atlas source

   true

   Evidence ID

   ev-uss-sc-532-sc532-08

9. [9]Era inference built on: NHHC DANFS construction record (diesel wooden subchaser, built 1941-42); NavSource specifications (2 x GM 8-268A diesels, twin screws); splinterfleet/PCSA class description (wooden 'splinter fleet' construction at small boatyards); GAO HRD-80-2 Navy asbestos-era documentation (ev-09) [other_primary]

   Locator

   DANFS entry; NavSource specifications block; class narratives (ev-08); GAO HRD-80-2 (ev-10)

   Finding type

   asbestos_application

   Finding

   A wooden-hulled, diesel-powered SC-497-class submarine chaser built 1941-42 sits inside the Navy's documented asbestos-use era. For a small diesel craft of this type and period, era-standard applications were diesel-engine exhaust lagging in the engine room, machinery and piping gaskets, valve packing, electrical insulation, and brake/clutch linings on deck machinery - in a 110-foot wooden hull with a ~28-man complement living and working in immediate proximity to the machinery space. As a diesel-powered craft she carried no boilers or steam plant - the boiler/turbine/steam-line lagging pathway that dominates steam-vessel asbestos does not apply.

   Verification

   inferred

   Role

   supporting

   Documentation level

   class_or_era

   Accessed

   2026-10-03

   Study period

   1941-1952

   Population

   Luders Marine construction trades (1941-42); USN crew (1942-44); French crew (1944-52); disposal workers (1952, mechanism unknown)

   Limitations

   Class/era inference only - no hull-specific insulation survey, material list, work package, or plan documentation located for SC-532. Names era-standard applications, not confirmed installed materials. No quantity, no manufacturer attribution. The Booklet of General Plans (BOGP) covering SC-505/SC-506/SC-532/SC-533 is referenced in secondary collecting channels - an archival lead, not retrieved (see search_ledger).

   Atlas source

   true

   Evidence ID

   ev-uss-sc-532-sc532-09

10. [10]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 (1941-42) and US service era (1942-44).

    Verification

    verified

    Role

    context

    Documentation level

    class_or_era

    Accessed

    2026-10-03

    Study period

    1979 (report); era covered spans this hull's build/service

    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. The SC-497 class's wooden diesel configuration is narrower than the steam-ship insulation scope the GAO report primarily addresses.

    Atlas source

    true

    Evidence ID

    ev-uss-sc-532-sc532-10

11. [11]CT Mirror, 'Bridgewater plan faces another potential setback: climate change' (Jan 28, 2013) - redevelopment/remediation status of the former Luders Marine / Brewer's Yacht Haven site, Stamford Harbor [reputable_press]

    Locator

    CT Mirror article, 'Residents fight to restore boatyard' section ('After Brewer's Yacht Haven closed in 2011, the site has been "in remediation," according to BLT')

    Finding type

    environmental_record

    Finding

    Builder-site disposition context: the former Luders Marine yard on the Stamford Harbor peninsula (SC-532's construction site) later operated as Brewer's Yacht Haven, one of the Northeast's largest boatyards; the boatyard closed in 2011 and was demolished by developer Building and Land Technology, with the 14-acre site 'in remediation' under state oversight and subject to a state-mandated ~$20 million cleanup (per contemporaneous Stamford/Greenwich press coverage of the Harbor Point redevelopment). A century of industrial and maritime use left the site contaminated per local officials.

    Verification

    verified

    Role

    context

    Documentation level

    context_only

    Accessed

    2026-10-03

    Study period

    2011-2013 (coverage); site industrial era 1908-1968

    Population

    Former yard-site remediation workers (post-2011); historical yard trades (site context only)

    Limitations

    Builder-site context only - this documents remediation of the former yard peninsula decades after the hull's construction, NOT any asbestos condition aboard the vessel or a quantified yard-era exposure. Press accounts describe contaminated soil generally; no asbestos-specific finding is stated in the cited coverage. The CT Mirror article is about the Bridgewater/Harbor Point development dispute; the remediation reference is background within it.

    Atlas source

    true

    Evidence ID

    ev-uss-sc-532-sc532-11

12. [12]Batch-7907 search ledger (this record): NHHC DANFS SC-501-SC-600 volume; NavSource SC-532 page and image set; uboat.net ship/8835; HyperWar ships-sc register transcription; shipbuildinghistory Luders + small-craft tables; postenavalemilitaire/navypedia French records; splinterfleet/PCSA class narratives; Signal Corps SC 180046 (Commons/Flickr); Morison vol. IX full text (grep); CourtListener API v4 (see per-query ledger rows); secondary web asbestos/litigation sweep; shipyards.json yard_id check [other_primary]

    Locator

    search_ledger rows sl-uss-sc-532-sc532-01 through -16

    Finding type

    historical_record

    Finding

    No qualifying ship-specific asbestos record located: no asbestos survey, abatement contract, hazmat disclosure, museum record, or docketed case naming USS SC-532 / PC-532 / CH-103 was found in the public sources searched (see search_ledger). CourtListener 'SC-532' opinion search returned 17 hits - ALL name collisions (Kentucky 'SC' Supreme Court docket numbers, Alabama 'SC 532' docket, Georgia reporter citations); no vessel or asbestos content. The only 'asbestos aboard' material surfacing in secondary sweeps is veteran-advocate/law-firm listicle content asserting asbestos on Navy ships generically - excluded by source policy.

    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 - era-consistent inference (ev-09, ev-10) remains the honest basis for assessment. CourtListener docket (type=r) and PC-532 queries were fleet-paced/blocked during this session and are logged accordingly in the search ledger - litigation status for those query paths is open, not negative. French-side litigation archives were not searched. Does not establish or defeat any claim of exposure or legal eligibility.

    Atlas source

    true

    Evidence ID

    ev-uss-sc-532-sc532-12