{"product_id":"falcon-21x12-5-propeller-gas-carbon-fiber","title":"Falcon 21x12.5 Carbon Fiber Propeller for Gas RC Airplanes","description":"\u003ch2\u003eFalcon 21x12.5 Carbon Fiber Gas Propeller\u003c\/h2\u003e\n\n\u003cp\u003e\n  The \u003cstrong\u003eFalcon 21x12.5 Carbon Fiber Gas Propeller\u003c\/strong\u003e is designed for gas-powered RC airplanes that need efficient forward flight, smooth throttle response, and stable performance under load. The 21x12.5 configuration is a higher-pitch setup that can support stronger forward speed when matched correctly to the engine and airframe.\n\u003c\/p\u003e\n\n\u003cp\u003e\n  Built from carbon fiber, this propeller provides the rigidity and durability needed for demanding sport, aerobatic, and performance-oriented gas RC aircraft.\n\u003c\/p\u003e\n\n\u003ch3\u003eBest For\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eSport and aerobatic gas RC airplanes\u003c\/li\u003e\n  \u003cli\u003ePerformance-oriented airframes\u003c\/li\u003e\n  \u003cli\u003ePilots looking for more forward speed than lower-pitch options\u003c\/li\u003e\n  \u003cli\u003eProperly matched gas setups where a 21-inch propeller is recommended\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Engine Class Range\u003c\/h3\u003e\n\u003cp\u003e\n  This propeller is commonly used on gas-powered RC aircraft that prioritize efficient forward flight and stable RPM under load.\n\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n    \u003cstrong\u003eLarge 35cc–40cc class gas engines\u003c\/strong\u003e, depending on aircraft type, exhaust setup, RPM range, field elevation, and flying style.\n  \u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\n  Higher-pitch propellers require proper engine tuning and enough engine power to maintain RPM efficiently during flight. Always verify propeller recommendations from your engine manufacturer before installation.\n\u003c\/p\u003e\n\n\u003ch3\u003ePrecision Construction\u003c\/h3\u003e\n\u003cp\u003e\n  This propeller features a factory-drilled \u003cstrong\u003e10mm center hole\u003c\/strong\u003e, approximately \u003cstrong\u003e0.3937\"\u003c\/strong\u003e or \u003cstrong\u003e25\/64\"\u003c\/strong\u003e. Falcon carbon gas propellers are individually inspected and factory pre-balanced to help reduce vibration. Final balance verification is always recommended before use.\n\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCarbon Fiber Construction:\u003c\/strong\u003e Lightweight, rigid, and built for demanding gas-powered RC aircraft.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpeed-Oriented Performance:\u003c\/strong\u003e The 12.5-inch pitch can support efficient forward flight and increased airspeed when properly matched to the engine and aircraft.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e21-Inch Gas Propeller Size:\u003c\/strong\u003e Suitable for properly matched sport and aerobatic aircraft that call for a 21-inch gas propeller.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eResponsive Throttle Feel:\u003c\/strong\u003e Lightweight carbon fiber construction can help provide crisp throttle response when properly matched to the engine.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEfficient Blade Profile:\u003c\/strong\u003e Blade design supports smooth airflow and stable performance during demanding flight conditions.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFactory Pre-Balanced:\u003c\/strong\u003e Pre-balanced to help reduce vibration, with final balance verification recommended before installation.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePropeller Covers Included:\u003c\/strong\u003e Helps protect the blades during storage, transport, and field handling.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh Gloss Finish:\u003c\/strong\u003e Finished with Falcon’s clean carbon fiber appearance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eFalcon\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003ePropeller Size\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e21x12.5\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eDiameter\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e21 inches\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003ePitch\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e12.5 inches\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eCarbon Fiber\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eCenter Hole\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e10mm \/ 0.3937\" \/ 25\/64\"\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eIncludes\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003ePropeller Covers\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003ePropeller Selection Note\u003c\/h3\u003e\n\u003cp\u003e\n  A 21x12.5 propeller is generally a speed-oriented option compared with lower-pitch propellers of the same diameter. It may provide increased forward speed and efficient cruising flight when the engine has enough power to maintain RPM under load.\n\u003c\/p\u003e\n\n\u003cp\u003e\n  If your setup needs easier spool-up, stronger acceleration, or more low-speed pull, a lower-pitch option such as a 21x10 or 21x8 may be a better match. If your goal is increased forward speed and your engine can maintain RPM efficiently, the 21x12.5 may be appropriate.\n\u003c\/p\u003e\n\n\u003ch3\u003eImportant Safety Reminder\u003c\/h3\u003e\n\u003cp\u003e\n  Always inspect the propeller before use. Check for cracks, chips, delamination, shipping damage, hub fit, bolt pattern, spinner clearance, engine RPM range, and ground clearance before flying.\n\u003c\/p\u003e\n\n\u003ch3\u003eWhy Buy from Gator RC?\u003c\/h3\u003e\n\u003cp\u003e\n  Gator RC carries Falcon carbon fiber propellers for serious RC pilots looking for dependable performance and quality construction. We can help match the right propeller size to your aircraft, engine combination, and flying style.\n\u003c\/p\u003e","brand":"Falcon","offers":[{"title":"Default Title","offer_id":48041940811998,"sku":"CGP21125","price":87.12,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0745\/1436\/6686\/files\/falcon_gas_cf_prop.png?v=1778859756","url":"https:\/\/www.gator-rc.com\/products\/falcon-21x12-5-propeller-gas-carbon-fiber","provider":"Gator RC","version":"1.0","type":"link"}