{
 "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-propeller-rpm-limits",
 "name": "APC propeller RPM limits",
 "kind": "standard",
 "category": "Aircraft design",
 "group": "Propellers",
 "year": null,
 "question": "How fast can I spin an APC propeller?",
 "tags": [
  "vehicle design",
  "propellers",
  "rc design",
  "aerodynamics"
 ],
 "aliases": [
  "apc rpm limit",
  "propeller max rpm",
  "apc prop rpm formula",
  "slow flyer prop rpm",
  "thin electric prop max rpm",
  "multirotor prop rpm limit",
  "prop rpm limit calculator",
  "150000 divided by diameter",
  "prop tip speed limit"
 ],
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  "length": null,
  "width": null,
  "height": null
 },
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 "xem_status": "free-files",
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 "url": "https://xemstudio.com/objects/apc-propeller-rpm-limits/",
 "sheet_txt": "https://xemstudio.com/objects/apc-propeller-rpm-limits/sheet.txt",
 "sheet": {
  "basis": "Design rules and figures from the cited sources; example geometry by Xem Studio",
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  "notes": [
   "APC publishes suggested maximum RPM as a constant divided by diameter in inches, so bigger props have lower limits (APC RPM Limits).",
   "Glow/sport props: 190,000/D; thin electric: 150,000/D; folding: 120,000/D; multirotor: 105,000/D; slow flyer: 65,000/D. A 10x6 glow prop should stay under 19,000 rpm (APC).",
   "Electric-only props lack the strength for glow engines' firing pulses, though glow props can be used on electric motors (Model Aviation, APC Q&A).",
   "The file is a reference example built by Xem Studio from the numbers above. Sizes the sources do not fix are illustrative; scale the example to your own vehicle."
  ],
  "table": {
   "columns": [
    "parameter",
    "value or range",
    "source"
   ],
   "rows": [
    [
     "Glow / Sport / Pattern / Speed 400 (E)",
     "190,000 / D",
     "APC"
    ],
    [
     "Thin Electric (E), Polycarbonate FPV",
     "150,000 / D",
     "APC"
    ],
    [
     "Folding Electric (F)",
     "120,000 / D",
     "APC"
    ],
    [
     "Multi-Rotor (MR, MRF)",
     "105,000 / D",
     "APC"
    ],
    [
     "Slow Flyer (SF)",
     "65,000 / D",
     "APC"
    ],
    [
     "Racing / carbon, IC",
     "225,000 / D",
     "APC"
    ],
    [
     "Racing / pylon on electric",
     "270,000 / D",
     "APC"
    ],
    [
     "Example",
     "10x6 glow -> 19,000 rpm",
     "APC"
    ]
   ]
  }
 },
 "sheet_text": "APC propeller RPM limits — dimension sheet\nSource: Xem Studio, https://xemstudio.com/objects/apc-propeller-rpm-limits/  (sheet CC BY 4.0; files Xem Studio Design License, https://xemstudio.com/license/)\nBasis: Design rules and figures from the cited sources; example geometry by Xem Studio\nCatalog version: 2026-10-20\n\nSizes: see table below\n- APC publishes suggested maximum RPM as a constant divided by diameter in inches, so bigger props have lower limits (APC RPM Limits).\n- Glow/sport props: 190,000/D; thin electric: 150,000/D; folding: 120,000/D; multirotor: 105,000/D; slow flyer: 65,000/D. A 10x6 glow prop should stay under 19,000 rpm (APC).\n- Electric-only props lack the strength for glow engines' firing pulses, though glow props can be used on electric motors (Model Aviation, APC Q&A).\n- The file is a reference example built by Xem Studio from the numbers above. Sizes the sources do not fix are illustrative; scale the example to your own vehicle.\n\nparameter  value or range  source\nGlow / Sport / Pattern / Speed 400 (E)  190,000 / D  APC\nThin Electric (E), Polycarbonate FPV  150,000 / D  APC\nFolding Electric (F)  120,000 / D  APC\nMulti-Rotor (MR, MRF)  105,000 / D  APC\nSlow Flyer (SF)  65,000 / D  APC\nRacing / carbon, IC  225,000 / D  APC\nRacing / pylon on electric  270,000 / D  APC\nExample  10x6 glow -> 19,000 rpm  APC\n\nFiles elsewhere (not hosted by Xem Studio; license as stated by the publisher):\n- APC Propellers: RPM Limits — web — Publisher's page; dimensions are facts — https://www.apcprop.com/technical-information/rpm-limits\n- Model Aviation (AMA), J. Smith with APC Propellers: Common Questions with APC Propellers (Mar 2021) — web — Publisher's page; dimensions are facts — https://www.modelaviation.com/node/2115\n\nFree files (Xem Studio Design License, Xem Studio; STEP + STL, 1 parts): https://xemstudio.com/files/hardware/apc-propeller-rpm-limits/index.json\nAPI: https://xemstudio.com/api/geometry?object=apc-propeller-rpm-limits\n",
 "sources": [
  {
   "publisher": "APC Propellers",
   "title": "RPM Limits",
   "url": "https://www.apcprop.com/technical-information/rpm-limits",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "Model Aviation (AMA), J. Smith with APC Propellers",
   "title": "Common Questions with APC Propellers (Mar 2021)",
   "url": "https://www.modelaviation.com/node/2115",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
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 "related": [
  "propeller-diameter-vs-pitch",
  "pitch-diameter-ratio",
  "propeller-blade-count",
  "propeller-helix-angle-blade-twist",
  "propeller-slip-efficiency",
  "apc-propeller-naming"
 ],
 "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": "Max rpm for an APC 10x4.7SF?",
   "a": "Slow flyer: 65,000/10 = 6,500 rpm (APC)."
  }
 ],
 "files_license": {
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  "holder": "Xem Studio",
  "url": "https://xemstudio.com/license/",
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}