{
  "version": "0.1.1",
  "inspectedAt": "2026-09-11",
  "status": "Educational class studies, not certified final-night reconstructions",
  "primaryEvidence": [
    {
      "title": "British Battle Summary No. 31, sections 3–6; later transcription",
      "url": "https://www.naval-history.net/WW2Ships-CharybdisAsr.htm",
      "supports": "Force 28 membership and initial order; four single 4.7-inch guns and two quadruple torpedo banks for Grenville/Rocket; two twin 4-inch mountings and one twin torpedo bank for the Hunts.",
      "limits": "Absent original plans; report times and tactical reconstruction have uncertainties."
    },
    {
      "title": "Admiralty N.I.D. 24/T5/45, paragraphs 1–2 and 6–16; captured German records in transcription",
      "url": "https://www.naval-history.net/WW2Ships-CharybdisGermanReport.htm",
      "supports": "Five named outer escorts; six minesweepers plus V718/V719 around Münsterland; T25 did not fire.",
      "limits": "Damage claims conflict with British reports. Paragraph 11 names T24 despite its absence from the listed force; this does not add T24 to the reconstruction."
    },
    {
      "title": "Royal Navy official photograph, Grenville, May 1943, IWM FL 3249",
      "url": "https://commons.wikimedia.org/wiki/File:HMS_Grenville_1943_IWM_FL_003249.jpg",
      "supports": "May 1943 identity and broad profile; foremast and shorter after pole visibly distinct. The omitted after pole is restored to the Grenville study.",
      "limits": "Mast height, section, rake, yard dimensions and exact station are interpreted. The oblique photograph is not a measured drawing or complete evidence of October 1943 fittings."
    },
    {
      "title": "Australian War Memorial 302473, Rocket, c.1945",
      "url": "https://www.awm.gov.au/collection/302473",
      "supports": "Photograph inspected for broad one-funnel profile, bridge, main-gun and torpedo-bank arrangement.",
      "limits": "Later than October 1943. Its camouflage, Bofors, radar and small-AA outfit are not copied into the 1943 study."
    },
    {
      "title": "ONI 201-I, issued December 1944; cover and printed pages 8–9 (PDF pages 1, 10–11)",
      "url": "https://www.ibiblio.org/hyperwar/USN/ref/ONI/ONI-201/ONI-201-I/ONI-201-I.pdf",
      "supports": "Primary scan obtained and visually inspected. Printed page 8 shows comparative British destroyer silhouettes, including the Q–W group and its short after pole.",
      "limits": "This volume is an index and recognition aid, not builder lines. The Hunt silhouette on page 9 is explicitly Group I; it cannot establish a Type III outfit. Issued after the action."
    },
    {
      "title": "Royal Navy official photograph, Wensleydale, IWM FL 21557",
      "url": "https://commons.wikimedia.org/wiki/File:HMS_Wensleydale_FL21557.jpg",
      "supports": "Primary photograph visually inspected for the Hunt profile. The model removes the generic fleet-destroyer rake from its funnel, using an upright axis.",
      "limits": "Date unresolved. The shared Type III shape is a class inference from Wensleydale, not ship-specific final-night certification. Funnel dimensions, taper and stations remain approximate."
    }
  ],
  "secondaryCrossChecks": [
    {
      "url": "https://en.wikipedia.org/wiki/HMS_Grenville_(R97)",
      "use": "U-class identity and nominal class length 110.57 m; neutral display beam rounded to 10.9 m. The inconsistent V-class infobox is not followed."
    },
    {
      "url": "https://en.wikipedia.org/wiki/HMS_Rocket_(H92)",
      "use": "Nominal class length 109.19 m and beam 10.9 m; not the later Type 15 conversion."
    },
    {
      "url": "https://www.naval-history.net/xGM-Chrono-10DE-Talybont.htm",
      "use": "Talybont identified as Hunt Type III."
    },
    {
      "url": "https://www.naval-history.net/xGM-Chrono-10DE-Stevenstone.htm",
      "use": "Stevenstone identified as Hunt Type III."
    },
    {
      "url": "https://www.naval-history.net/xGM-Chrono-10DE-Wensleydale.htm",
      "use": "Wensleydale class and service cross-check."
    },
    {
      "url": "https://en.wikipedia.org/wiki/German_torpedo_boat_T27",
      "use": "Type 39 nominal length 102.5 m, beam 10 m; main armament arrangement. These dimensions are secondary reference values pending builder-plan verification."
    }
  ],
  "designDecisions": [
    "Original parametric meshes for Grenville and Rocket, a shared Hunt III study for Talybont/Stevenstone/Wensleydale, and a shared Type 39 study for T23/T26/T27/T22/T25.",
    "The Hunt study uses the retained project class length 85.344 m and provisional class beam 9.6012 m. It does not replace Limbourne R2 or reuse the separately owned R3 print master.",
    "Main battery and torpedo counts are represented. Small AA, radar detail, ensigns, pennant painting and camouflage are omitted pending dated evidence. Omission does not mean historical absence.",
    "Hull sections, draught, freeboard, exact stations, mast geometry, boats, railings and equipment dimensions are authored approximations. Underwater appendages are not reconstructed.",
    "Neutral materials are study colours. There is no claim that all vessels wore the same paint.",
    "Münsterland and V718/V719 remain named identity markers. Six separate unnamed markers record the minesweeper count, without invented pennants, hulls or formation slots.",
    "All positions and intermediate movement remain illustrative. German vessels are omitted after the reported 03:24 reunion; no later fixes are asserted.",
    "The tow cue follows the reported first attempt and is hidden after it parts; see accuracy.json for the timing disagreement. Wakes appear only during authored movement and have no measured speed or sea-state meaning.",
    "Deck-height camera is an estimated viewing height, not a surveyed bridge station or reconstructed sightline."
  ],
  "rights": "All new GLB geometry is original project work. No third-party mesh, photograph, texture or source drawing is redistributed. Sources remain linked.",
  "nextEvidence": "Obtain builder plans and dated outfit photographs, original track charts, Münsterland and close-escort hull references, and tide/weather records before increasing historical precision.",
  "profileRevision": {
    "grenville": "Original after-pole geometry added. Only presence and broad fore/after relationship are supported by the dated photograph; dimensions remain interpreted.",
    "hunt-iii": "Generic raked funnel changed to an upright profile. Applies to the shared Talybont, Stevenstone and Wensleydale class study; does not alter the separate Limbourne model.",
    "preserved": "Nominal scale, main-armament references, existing detailed Charybdis/Limbourne derivatives and Rocket/Type 39 meshes retained.",
    "notAdded": "Small-AA, radar arrays, paint schemes and individual refits remain unresolved. Generic Hunt I and later 1950 recognition sheets are not treated as evidence of the October 1943 Type III outfit."
  }
}