{"product_id":"apc-21-5x13-epnc-carbon-electric-pattern-propeller","title":"APC 21.5x13 EPNC Carbon Electric Pattern Propeller – Lightweight F3A RC Prop","description":"\u003cdiv class=\"product-description\"\u003e\n\n\u003ch2\u003eAPC 21.5x13 EPNC Carbon Electric Pattern Propeller\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eAPC 21.5x13 EPNC Carbon Electric Pattern Propeller\u003c\/strong\u003e is a lightweight, high-efficiency propeller developed for electric-powered precision aerobatic aircraft, F3A competition airplanes, and advanced RC pattern flying. This EPNC series propeller uses APC’s lightweight carbon\/composite material blend to reduce rotating mass while maintaining excellent stiffness and smooth flight performance.\u003c\/p\u003e\n\n\u003cp\u003eCompared to standard APC composite propellers, the EPNC series incorporates carbon reinforcement to help lower weight and improve throttle response for modern electric RC aircraft.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003e21.5x13 electric pattern propeller\u003c\/li\u003e\n\u003cli\u003eLightweight carbon\/composite APC EPNC design\u003c\/li\u003e\n\u003cli\u003eThin electric hub configuration\u003c\/li\u003e\n\u003cli\u003eDesigned specifically for electric motors\u003c\/li\u003e\n\u003cli\u003eReduced rotating mass for smoother throttle response\u003c\/li\u003e\n\u003cli\u003eExcellent for F3A, precision aerobatics, and pattern aircraft\u003c\/li\u003e\n\u003cli\u003eHigh-efficiency blade design for electric power systems\u003c\/li\u003e\n\u003cli\u003eStrong stiffness and low vibration characteristics\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;\"\u003e21.5x13\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;\"\u003e21.5 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 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;\"\u003eCarbon \/ Composite Blend\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e\u003cstrong\u003eHub Style\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003eThin Electric Hub\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\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, pattern flying, precision aerobatics, giant-scale 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\u003eWhy Choose the APC EPNC Series?\u003c\/h3\u003e\n\n\u003cp\u003eThe APC EPNC line was developed to provide electric RC pilots with a lighter propeller option while maintaining the precise blade geometry and efficiency APC is known for. By reducing rotational weight, the propeller can improve throttle transitions, braking feel, and overall aircraft response.\u003c\/p\u003e\n\n\u003cp\u003eThis makes the APC 21.5x13 EPNC especially popular among:\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003eF3A competition pilots\u003c\/li\u003e\n\u003cli\u003ePrecision aerobatic aircraft builders\u003c\/li\u003e\n\u003cli\u003eAdvanced electric sport pilots\u003c\/li\u003e\n\u003cli\u003ePattern airplane setups requiring smooth throttle management\u003c\/li\u003e\n\u003cli\u003ePilots seeking lighter alternatives to heavier carbon fiber props\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\u003eLarge electric sport aircraft\u003c\/li\u003e\n\u003cli\u003eIMAC-style electric setups\u003c\/li\u003e\n\u003cli\u003eGiant-scale electric RC airplanes\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 electric pattern propellers can significantly improve throttle smoothness and braking characteristics on precision aerobatic aircraft. Always verify amp draw after changing propeller sizes or styles.\n\u003c\/div\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003eImportant Installation 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 use\u003c\/li\u003e\n\u003cli\u003eInspect for cracks or shipping damage prior to installation\u003c\/li\u003e\n\u003cli\u003eUse proper adapters and hub spacing hardware\u003c\/li\u003e\n\u003cli\u003eConfirm motor, ESC, and battery compatibility before operation\u003c\/li\u003e\n\u003cli\u003eCheck current draw with a watt meter after installation\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 lightweight carbon\/composite electric pattern propeller series designed for precision electric aerobatic aircraft.\u003c\/p\u003e\n\n\u003ch4\u003eIs this propeller lighter than a standard APC prop?\u003c\/h4\u003e\n\n\u003cp\u003eYes. The EPNC series uses carbon reinforcement to reduce overall rotating weight compared to standard APC composite propellers. \u003c\/p\u003e\n\n\u003ch4\u003eCan this propeller be used on gas engines?\u003c\/h4\u003e\n\n\u003cp\u003eNo. The APC EPNC series is intended for electric motor applications only.\u003c\/p\u003e\n\n\u003ch4\u003eWhat type of airplanes use a 21.5x13 propeller?\u003c\/h4\u003e\n\n\u003cp\u003eThis size is commonly used on F3A pattern aircraft, precision aerobatic RC airplanes, and larger electric competition aircraft.\u003c\/p\u003e\n\n\u003ch4\u003eWhy do F3A pilots use lightweight propellers?\u003c\/h4\u003e\n\n\u003cp\u003eLighter propellers can improve throttle response, braking consistency, and aircraft smoothness during precision maneuvers.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003eWhat’s Included\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eOne APC 21.5x13 EPNC carbon electric pattern propeller\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cem\u003eMotor, spinner, adapters, 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":46988556042462,"sku":"LP21513EPNC","price":37.77,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0745\/1436\/6686\/files\/apc-carbon_3.jpg?v=1748991267","url":"https:\/\/www.gator-rc.com\/products\/apc-21-5x13-epnc-carbon-electric-pattern-propeller","provider":"Gator RC","version":"1.0","type":"link"}