{"product_id":"21x13-5-epnc-apc-carbon-pattern-electric-propeller","title":"APC 21x13.5 EPNC Carbon Electric Pattern Propeller","description":"\u003cdiv class=\"product-description\"\u003e\n\n\u003ch2\u003eAPC 21x13.5 EPNC Carbon Electric Pattern Propeller\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eAPC 21x13.5 EPNC Carbon Electric Pattern Propeller\u003c\/strong\u003e is engineered for electric-powered precision aerobatic aircraft, F3A competition airplanes, and advanced pattern flying setups. The EPNC series combines APC’s proven electric propeller design with carbon reinforcement to reduce weight while maintaining excellent stiffness and smooth flight characteristics.\u003c\/p\u003e\n\n\u003cp\u003eDesigned specifically for electric motors, the APC 21x13.5 EPNC features a thin electric hub configuration and lightweight carbon\/composite construction for improved throttle response, braking feel, and efficient power delivery.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003e21x13.5 electric pattern propeller\u003c\/li\u003e\n\u003cli\u003eLightweight APC EPNC carbon\/composite design\u003c\/li\u003e\n\u003cli\u003eThin electric hub for electric motor applications\u003c\/li\u003e\n\u003cli\u003eReduced rotating mass for smoother throttle transitions\u003c\/li\u003e\n\u003cli\u003eExcellent stiffness and low vibration characteristics\u003c\/li\u003e\n\u003cli\u003eDesigned for F3A, pattern, and precision aerobatic aircraft\u003c\/li\u003e\n\u003cli\u003eIncludes APC adapter rings\u003c\/li\u003e\n\u003cli\u003eElectric motor applications only\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\n\u003ctable style=\"width:100%; border-collapse:collapse;\"\u003e\n\u003ctbody\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003eAPC\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e\u003cstrong\u003ePropeller Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e21x13.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e\u003cstrong\u003eSeries\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003eEPNC Carbon Pattern Electric\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e\u003cstrong\u003eDiameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e21 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e\u003cstrong\u003ePitch\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e13.5 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e40% Carbon \/ 60% Nylon\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e\u003cstrong\u003eHub Diameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e1.25 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e\u003cstrong\u003eHub Thickness\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e0.46 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e\u003cstrong\u003eShaft Diameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e1\/4 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e2.79 oz.\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003eElectric RC airplanes only\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e\u003cstrong\u003eBest Use\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003eF3A, precision aerobatics, pattern flying, IMAC electric aircraft\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003eWhat Is APC EPNC?\u003c\/h3\u003e\n\n\u003cp\u003eEPNC stands for APC’s lightweight carbon electric pattern propeller series. These propellers are optimized for precision electric aircraft requiring smooth throttle response, low rotational weight, and efficient braking characteristics.\u003c\/p\u003e\n\n\u003cp\u003eCompared to standard APC composite propellers, the EPNC series uses carbon reinforcement to reduce weight while maintaining stiffness and efficient blade geometry.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003eWhy Choose the APC 21x13.5 EPNC?\u003c\/h3\u003e\n\n\u003cp\u003eThe APC 21x13.5 EPNC is especially popular among advanced electric RC pilots who want predictable throttle feel and efficient flight performance during precision aerobatic maneuvers.\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003eLightweight rotating mass\u003c\/li\u003e\n\u003cli\u003eSmooth electric throttle response\u003c\/li\u003e\n\u003cli\u003eExcellent braking characteristics\u003c\/li\u003e\n\u003cli\u003eEfficient blade design\u003c\/li\u003e\n\u003cli\u003eLow-noise operation\u003c\/li\u003e\n\u003cli\u003eStrong performance for precision aerobatics\u003c\/li\u003e\n\u003cli\u003eCompetition-proven APC blade geometry\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003eRecommended Aircraft Applications\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eF3A competition airplanes\u003c\/li\u003e\n\u003cli\u003eElectric pattern aircraft\u003c\/li\u003e\n\u003cli\u003ePrecision aerobatic RC airplanes\u003c\/li\u003e\n\u003cli\u003eIMAC electric aircraft\u003c\/li\u003e\n\u003cli\u003eAdvanced sport electric airplanes\u003c\/li\u003e\n\u003cli\u003eGiant-scale electric aircraft\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cdiv style=\"background:#f5fff5; border:1px solid #2f7d32; padding:14px; margin:18px 0;\"\u003e\n\u003cstrong\u003eGator RC Tip:\u003c\/strong\u003e Lightweight pattern propellers can significantly improve throttle smoothness and braking feel on precision electric aircraft. Always verify amp draw after changing propeller sizes or styles.\n\u003c\/div\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003eImportant Setup Notes\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eDesigned for electric motors only\u003c\/li\u003e\n\u003cli\u003eAlways balance the propeller before operation\u003c\/li\u003e\n\u003cli\u003eInspect for cracks or shipping damage before installation\u003c\/li\u003e\n\u003cli\u003eUse proper adapters and mounting hardware\u003c\/li\u003e\n\u003cli\u003eVerify ESC, motor, and battery compatibility\u003c\/li\u003e\n\u003cli\u003eCheck current draw with a watt meter after installation\u003c\/li\u003e\n\u003cli\u003eNever exceed APC recommended RPM limits\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\n\u003ch4\u003eWhat does EPNC mean?\u003c\/h4\u003e\n\n\u003cp\u003eEPNC refers to APC’s carbon electric pattern propeller series designed for lightweight precision electric aircraft performance. :contentReference[oaicite:1]{index=1}\u003c\/p\u003e\n\n\u003ch4\u003eIs this propeller designed for gas engines?\u003c\/h4\u003e\n\n\u003cp\u003eNo. The APC 21x13.5 EPNC is designed specifically for electric motor applications only. :contentReference[oaicite:2]{index=2}\u003c\/p\u003e\n\n\u003ch4\u003eWhat is the propeller made from?\u003c\/h4\u003e\n\n\u003cp\u003eThe APC EPNC series uses a 40% carbon and 60% nylon composite blend. :contentReference[oaicite:3]{index=3}\u003c\/p\u003e\n\n\u003ch4\u003eDoes this propeller include adapter rings?\u003c\/h4\u003e\n\n\u003cp\u003eYes. APC includes LPAR06E adapter rings with the propeller. :contentReference[oaicite:4]{index=4}\u003c\/p\u003e\n\n\u003ch4\u003eWhat aircraft work best with a 21x13.5 EPNC propeller?\u003c\/h4\u003e\n\n\u003cp\u003eThis size is commonly used on F3A pattern aircraft, precision aerobatic RC airplanes, and advanced electric competition aircraft.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003eWhat’s Included\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eOne APC 21x13.5 EPNC carbon electric pattern propeller\u003c\/li\u003e\n\u003cli\u003eOne set of APC adapter rings\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cem\u003eMotor, spinner, mounting hardware, and aircraft are not included unless otherwise stated.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003c\/div\u003e","brand":"APC","offers":[{"title":"Default Title","offer_id":46988555649246,"sku":"LP210135EPNC","price":37.77,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0745\/1436\/6686\/files\/apc-carbon_2.jpg?v=1748991261","url":"https:\/\/www.gator-rc.com\/products\/21x13-5-epnc-apc-carbon-pattern-electric-propeller","provider":"Gator RC","version":"1.0","type":"link"}