{
 "version": "2026-10-20",
 "license": "Dimension sheets: CC BY 4.0. Standard and published-size files: CC BY 4.0. Xem Studio's own designs (files_license = Xem Studio Design License): free to use and sell things from, not to redistribute as files — https://xemstudio.com/license/. Other publishers' files: their own license, linked beside them.",
 "slug": "pro-boat-blackjack-42-8s-prb08043",
 "name": "Pro Boat Blackjack 42 brushless 8S catamaran (PRB08043)",
 "kind": "modern",
 "category": "RC boats",
 "group": "Catamarans",
 "year": null,
 "question": "What are the dimensions of the Pro Boat Blackjack 42 8S?",
 "tags": [
  "rc boat",
  "radio control boat",
  "model boat",
  "hobby rc",
  "catamarans"
 ],
 "aliases": [
  "blackjack 42 dimensions",
  "pro boat blackjack 42 length",
  "blackjack 42 beam",
  "prb08043 specs",
  "blackjack 42 prop size",
  "blackjack 42 weight",
  "blackjack 42 8s catamaran size",
  "blackjack 42 battery size",
  "medidas blackjack 42",
  "blackjack 42 katamaran maße",
  "dimensões blackjack 42"
 ],
 "overall_mm": {
  "length": 1086,
  "width": 387,
  "height": 184.15
 },
 "official_cad": false,
 "xem_status": "free-files",
 "les": false,
 "free_files": 1,
 "url": "https://xemstudio.com/objects/pro-boat-blackjack-42-8s-prb08043/",
 "sheet_txt": "https://xemstudio.com/objects/pro-boat-blackjack-42-8s-prb08043/sheet.txt",
 "sheet": {
  "basis": "Secondary source: RC Car Action (Horizon Hobby announcement), RC Visions (dealer), Horizon Hobby (copy of the maker's figures; the maker publishes none directly)",
  "overall_mm": {
   "length": 1086,
   "width": 387,
   "height": 184.15
  },
  "notes": [
   "The Blackjack 42 is Pro Boat's polycarbonate 42-inch 8S catamaran. The file is a 1086 × 387 × 184 mm envelope of the hull.",
   "Pro Boat (Horizon Hobby) numbers are quoted from Horizon's launch announcement as republished by RC Car Action / a dealer, because Horizon's own spec tab could not be read; treat as secondary.",
   "The motor designation differs between Horizon's spec table (4985) and description (4685).",
   "True size, no printing tolerance added. Only published numbers are used; anything not published is said so.",
   "Secondary source: the numbers come from a retailer or magazine copy of the maker's specification."
  ],
  "table": {
   "columns": [
    "dimension",
    "value"
   ],
   "rows": [
    [
     "Length",
     "42.75 in (1086 mm)"
    ],
    [
     "Beam",
     "15.25 in (387 mm)"
    ],
    [
     "Hull height",
     "7.25 in (184.15 mm)"
    ],
    [
     "Weight",
     "8.95 lb (4.1 kg)"
    ],
    [
     "Propeller",
     "2-blade, 1.7 × 1.6 in, 5 mm shaft"
    ],
    [
     "Drive",
     "flex shaft"
    ],
    [
     "Motor",
     "listed as 4985 1350 Kv brushless water-cooled (description says Spektrum Marine 4685)"
    ],
    [
     "ESC",
     "Spektrum Smart 160A HV water-cooled"
    ],
    [
     "Battery",
     "two 4S 5000 mAh 50C+ with IC5/EC5 (8S total)"
    ],
    [
     "Top speed",
     "55 mph"
    ]
   ]
  }
 },
 "sheet_text": "Pro Boat Blackjack 42 brushless 8S catamaran (PRB08043) — dimension sheet\nSource: Xem Studio, https://xemstudio.com/objects/pro-boat-blackjack-42-8s-prb08043/  (sheet CC BY 4.0)\nBasis: Secondary source: RC Car Action (Horizon Hobby announcement), RC Visions (dealer), Horizon Hobby (copy of the maker's figures; the maker publishes none directly)\nCatalog version: 2026-10-20\n\nOverall (mm): length 1086, width 387, height 184.15\n- The Blackjack 42 is Pro Boat's polycarbonate 42-inch 8S catamaran. The file is a 1086 × 387 × 184 mm envelope of the hull.\n- Pro Boat (Horizon Hobby) numbers are quoted from Horizon's launch announcement as republished by RC Car Action / a dealer, because Horizon's own spec tab could not be read; treat as secondary.\n- The motor designation differs between Horizon's spec table (4985) and description (4685).\n- True size, no printing tolerance added. Only published numbers are used; anything not published is said so.\n- Secondary source: the numbers come from a retailer or magazine copy of the maker's specification.\n\ndimension  value\nLength  42.75 in (1086 mm)\nBeam  15.25 in (387 mm)\nHull height  7.25 in (184.15 mm)\nWeight  8.95 lb (4.1 kg)\nPropeller  2-blade, 1.7 × 1.6 in, 5 mm shaft\nDrive  flex shaft\nMotor  listed as 4985 1350 Kv brushless water-cooled (description says Spektrum Marine 4685)\nESC  Spektrum Smart 160A HV water-cooled\nBattery  two 4S 5000 mAh 50C+ with IC5/EC5 (8S total)\nTop speed  55 mph\n\nFiles elsewhere (not hosted by Xem Studio; license as stated by the publisher):\n- RC Car Action (Horizon Hobby announcement): Pro Boat Blackjack 42 Brushless 8S Catamaran RTR — web — Publisher's page; dimensions are facts — https://www.rccaraction.com/?p=341929\n- RC Visions (dealer): Pro Boat Blackjack 42 8S — web — Publisher's page; dimensions are facts — https://rcvisions.com/products/pro-boat-blackjack-42-8s-brushless-rtr-electric-catamaran-w-2-4ghz-radio-system\n- Horizon Hobby: Blackjack 42 8S PRB08043 — web — Publisher's page; dimensions are facts — https://horizonhobby.com/product/blackjack-42-8s-brushless-catamaran-rtr/PRB08043.html\n\nFree files (CC BY 4.0, Xem Studio; STEP + STL, 1 parts): https://xemstudio.com/files/hardware/pro-boat-blackjack-42-8s-prb08043/index.json\nAPI: https://xemstudio.com/api/geometry?object=pro-boat-blackjack-42-8s-prb08043\n",
 "sources": [
  {
   "publisher": "RC Car Action (Horizon Hobby announcement)",
   "title": "Pro Boat Blackjack 42 Brushless 8S Catamaran RTR",
   "url": "https://www.rccaraction.com/?p=341929",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "RC Visions (dealer)",
   "title": "Pro Boat Blackjack 42 8S",
   "url": "https://rcvisions.com/products/pro-boat-blackjack-42-8s-brushless-rtr-electric-catamaran-w-2-4ghz-radio-system",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "Horizon Hobby",
   "title": "Blackjack 42 8S PRB08043",
   "url": "https://horizonhobby.com/product/blackjack-42-8s-brushless-catamaran-rtr/PRB08043.html",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  }
 ],
 "xem": {
  "status": "free-files",
  "sheet_free": true,
  "mesh_price_usd": null,
  "step_price_usd": null,
  "tolerance_mm": null
 },
 "related": [
  "traxxas-dcb-m41-widebody-57046-4",
  "pro-boat-blackjack-24-v2-prb08049",
  "pro-boat-zelos-36-twin-prb08021",
  "pro-boat-miss-geico-zelos-36-prb08040"
 ],
 "fits": [],
 "dimensions": "exact (nominal, no printing tolerance)",
 "dimension_rule": "All geometry on Xem Studio is exact (nominal, true size) with no printing tolerance. Where a part meets another part, the object lists its mating features (feature, exact size, what it mates with, fit class: press, slide, run, socket, clamp or designed). Apply your process's allowance to those features only; 'designed' gaps are part of the design and stay as drawn.",
 "mating": [],
 "faq": [
  {
   "q": "What prop does the Blackjack 42 use?",
   "a": "A 2-blade 1.7 × 1.6 in prop on a 5 mm shaft."
  },
  {
   "q": "What batteries does the Blackjack 42 need?",
   "a": "Two 4S 5000 mAh 50C+ packs with IC5 or EC5 connectors."
  }
 ],
 "files_license": null,
 "offers": [
  {
   "file": "pro-boat-blackjack-42-8s-prb08043-envelope",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/pro-boat-blackjack-42-8s-prb08043/pro-boat-blackjack-42-8s-prb08043-envelope.step",
   "stl": "https://xemstudio.com/files/hardware/pro-boat-blackjack-42-8s-prb08043/pro-boat-blackjack-42-8s-prb08043-envelope.stl",
   "note": "Envelope 1086 × 387 × 184.15 mm (Product length × beam × hull height as listed by Horizon Hobby)"
  }
 ],
 "markdown": "https://xemstudio.com/objects/pro-boat-blackjack-42-8s-prb08043/index.md"
}