{
 "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": "apc-8x4e-propeller",
 "name": "APC 8x4E electric propeller",
 "kind": "modern",
 "category": "RC planes",
 "group": "Propellers",
 "year": null,
 "question": "What are the dimensions of the APC 8x4E electric propeller?",
 "tags": [
  "rc plane",
  "rc airplane",
  "radio control",
  "model aircraft",
  "propellers"
 ],
 "aliases": [
  "apc 8x4e hub size",
  "apc 8x4 prop dimensions",
  "apc 8x4e hub diameter",
  "apc 8x4e shaft",
  "8x4 prop hub thickness",
  "apc 8x4 thin electric",
  "apc 8x4e weight",
  "hélice apc 8x4",
  "apc 8x4 propeller abmessungen"
 ],
 "overall_mm": {
  "length": 203.2,
  "width": 203.2,
  "height": 8.89
 },
 "official_cad": false,
 "xem_status": "free-files",
 "les": false,
 "free_files": 2,
 "url": "https://xemstudio.com/objects/apc-8x4e-propeller/",
 "sheet_txt": "https://xemstudio.com/objects/apc-8x4e-propeller/sheet.txt",
 "sheet": {
  "basis": "Secondary source: Retailer copy of APC Propellers data (copy of the maker's figures; the maker publishes none directly)",
  "overall_mm": {
   "length": 203.2,
   "width": 203.2,
   "height": 8.89
  },
  "notes": [
   "Hub, bore and weight for the APC 8x4E as listed by a retailer from APC's product data (secondary).",
   "The file models the hub and the swept diameter for clearance checks, not the blade airfoil.",
   "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": [
    [
     "Diameter",
     "8 in (203.2 mm)"
    ],
    [
     "Pitch",
     "4 in (101.6 mm)"
    ],
    [
     "Hub diameter",
     "20.32 mm"
    ],
    [
     "Hub thickness",
     "8.89 mm"
    ],
    [
     "Shaft bore",
     "1/4 in (6.35 mm), adapter rings included"
    ],
    [
     "Weight",
     "13.04 g"
    ]
   ]
  }
 },
 "sheet_text": "APC 8x4E electric propeller — dimension sheet\nSource: Xem Studio, https://xemstudio.com/objects/apc-8x4e-propeller/  (sheet CC BY 4.0)\nBasis: Secondary source: Retailer copy of APC Propellers data (copy of the maker's figures; the maker publishes none directly)\nCatalog version: 2026-10-20\n\nOverall (mm): length 203.2, width 203.2, height 8.89\n- Hub, bore and weight for the APC 8x4E as listed by a retailer from APC's product data (secondary).\n- The file models the hub and the swept diameter for clearance checks, not the blade airfoil.\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\nDiameter  8 in (203.2 mm)\nPitch  4 in (101.6 mm)\nHub diameter  20.32 mm\nHub thickness  8.89 mm\nShaft bore  1/4 in (6.35 mm), adapter rings included\nWeight  13.04 g\n\nFiles elsewhere (not hosted by Xem Studio; license as stated by the publisher):\n- Retailer copy of APC Propellers data: APC 8x4E Prop (ReadyMadeRC) — web — Publisher's page; dimensions are facts — https://www.readymaderc.com/products/details/apc-8x4e-prop\n\nFree files (CC BY 4.0, Xem Studio; STEP + STL, 2 parts): https://xemstudio.com/files/hardware/apc-8x4e-propeller/index.json\nAPI: https://xemstudio.com/api/geometry?object=apc-8x4e-propeller\n",
 "sources": [
  {
   "publisher": "Retailer copy of APC Propellers data",
   "title": "APC 8x4E Prop (ReadyMadeRC)",
   "url": "https://www.readymaderc.com/products/details/apc-8x4e-prop",
   "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": [
  "rc-plane-and-car-motors",
  "apc-8x6e-propeller",
  "apc-9x4-5e-propeller",
  "apc-9x6e-propeller",
  "apc-10x6e-propeller"
 ],
 "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 is the hub size of an APC 8x4E?",
   "a": "Hub Ø20.32 mm × 8.89 mm thick, 6.35 mm (1/4 in) bore."
  }
 ],
 "files_license": null,
 "offers": [
  {
   "file": "apc-8x4e-propeller-hub",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/apc-8x4e-propeller/apc-8x4e-propeller-hub.step",
   "stl": "https://xemstudio.com/files/hardware/apc-8x4e-propeller/apc-8x4e-propeller-hub.stl",
   "note": "Hub Ø20.32 × 8.89 mm, Ø6.35 mm bore (published)"
  },
  {
   "file": "apc-8x4e-propeller-swept-disc",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/apc-8x4e-propeller/apc-8x4e-propeller-swept-disc.step",
   "stl": "https://xemstudio.com/files/hardware/apc-8x4e-propeller/apc-8x4e-propeller-swept-disc.stl",
   "note": "Swept disc Ø203.2 mm (prop diameter), 1 mm reference — blades not modelled"
  }
 ],
 "markdown": "https://xemstudio.com/objects/apc-8x4e-propeller/index.md"
}