{"product_id":"src-586987-vortex-21x12e-electric-propeller-glass-fiber-nylon-2-pieces-bag","title":"Gemfan Vortex 21x12E Electric Propeller (Glass Fiber Nylon) 6.35mm\/0.25in Bore, 2PCS\/Bag","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\u003cp\u003e\u003ca href=\"https:\/\/rcdrone.top\/collections\/gemfan-propeller\" title=\"Gemfan Propeller\"\u003eGemfan\u003c\/a\u003e Vortex 21x12E electric propeller made from glass fiber nylon, supplied as 2 pieces per bag. Size is 21-inch diameter with 12-inch pitch for electric power setups that require a 21x12E prop format.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eGlass fiber nylon construction\u003c\/li\u003e\n\u003cli\u003e21x12E sizing (21 in diameter, 12 in pitch)\u003c\/li\u003e\n\u003cli\u003e6.35 mm \/ 0.25 in center hole diameter\u003c\/li\u003e\n\u003cli\u003e2PCS propellers per bag\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e21x12E\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePropeller Diameter\u003c\/td\u003e\n\u003ctd\u003e21 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePitch\u003c\/td\u003e\n\u003ctd\u003e12 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHub Diameter\u003c\/td\u003e\n\u003ctd\u003e31.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCenter Thickness\u003c\/td\u003e\n\u003ctd\u003e14.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCenter Hole Diameter\u003c\/td\u003e\n\u003ctd\u003e6.35 mm \/ 0.25 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight (Single Propeller)\u003c\/td\u003e\n\u003ctd\u003e121.73 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Weight (Including Packaging)\u003c\/td\u003e\n\u003ctd\u003e135 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eStatic Test Data\u003c\/h2\u003e\u003cp\u003eChart label: GemFan\u0026amp;Xoar 21x12, test motor 6360-190kv. Voltage: 37V.\u003c\/p\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eThrottle (%)\u003c\/td\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003ctd\u003e20\u003c\/td\u003e\n\u003ctd\u003e30\u003c\/td\u003e\n\u003ctd\u003e40\u003c\/td\u003e\n\u003ctd\u003e50\u003c\/td\u003e\n\u003ctd\u003e60\u003c\/td\u003e\n\u003ctd\u003e70\u003c\/td\u003e\n\u003ctd\u003e80\u003c\/td\u003e\n\u003ctd\u003e90\u003c\/td\u003e\n\u003ctd\u003e100\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent (A)\u003c\/td\u003e\n\u003ctd\u003e1.37\u003c\/td\u003e\n\u003ctd\u003e2.65\u003c\/td\u003e\n\u003ctd\u003e4.65\u003c\/td\u003e\n\u003ctd\u003e8.31\u003c\/td\u003e\n\u003ctd\u003e14.32\u003c\/td\u003e\n\u003ctd\u003e23.52\u003c\/td\u003e\n\u003ctd\u003e36.13\u003c\/td\u003e\n\u003ctd\u003e49.89\u003c\/td\u003e\n\u003ctd\u003e66.71\u003c\/td\u003e\n\u003ctd\u003e72.16\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpeed (rpm)\u003c\/td\u003e\n\u003ctd\u003e897\u003c\/td\u003e\n\u003ctd\u003e1713\u003c\/td\u003e\n\u003ctd\u003e2280\u003c\/td\u003e\n\u003ctd\u003e2834\u003c\/td\u003e\n\u003ctd\u003e3477\u003c\/td\u003e\n\u003ctd\u003e4116\u003c\/td\u003e\n\u003ctd\u003e4752\u003c\/td\u003e\n\u003ctd\u003e5264\u003c\/td\u003e\n\u003ctd\u003e5780\u003c\/td\u003e\n\u003ctd\u003e5936\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThrust (g)\u003c\/td\u003e\n\u003ctd\u003e202\u003c\/td\u003e\n\u003ctd\u003e769\u003c\/td\u003e\n\u003ctd\u003e1481\u003c\/td\u003e\n\u003ctd\u003e2326\u003c\/td\u003e\n\u003ctd\u003e3580\u003c\/td\u003e\n\u003ctd\u003e4998\u003c\/td\u003e\n\u003ctd\u003e6555\u003c\/td\u003e\n\u003ctd\u003e7988\u003c\/td\u003e\n\u003ctd\u003e9489\u003c\/td\u003e\n\u003ctd\u003e9995\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEfficiency (g\/W)\u003c\/td\u003e\n\u003ctd\u003e4.0\u003c\/td\u003e\n\u003ctd\u003e7.9\u003c\/td\u003e\n\u003ctd\u003e8.6\u003c\/td\u003e\n\u003ctd\u003e7.6\u003c\/td\u003e\n\u003ctd\u003e6.8\u003c\/td\u003e\n\u003ctd\u003e5.8\u003c\/td\u003e\n\u003ctd\u003e5.0\u003c\/td\u003e\n\u003ctd\u003e4.4\u003c\/td\u003e\n\u003ctd\u003e3.9\u003c\/td\u003e\n\u003ctd\u003e3.8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eWhat's Included\u003c\/h2\u003e\u003cul\u003e\u003cli\u003e2PCS Propellers\/Bag\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003eFor compatibility questions (shaft\/bore fitment, adapters, and electric power setup matching), contact support@rcdrone.top or visit https:\/\/rcdrone.top\/.\u003c\/p\u003e\u003ch2 id=\"details\"\u003eDetails\u003c\/h2\u003e\u003cdiv class=\"details-gallery\"\u003e\n\u003cimg alt=\"Gemfan Vortex 21x12E electric propeller static test data chart at 37V with 6360-190KV motor\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Gemfan-Vortex-21X12E-Electric-Propeller-Glass-fiber-nylon2.png?v=1778180265\"\u003e\u003cp\u003eStatic performance data for the 21×12 prop at 37V using a 6360-190KV test \u003ca href=\"https:\/\/rcdrone.top\/collections\/drone-motor\" title=\"Drone Motor\"\u003emotor\u003c\/a\u003e, including current draw, RPM, thrust, and efficiency by throttle.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Gemfan","offers":[{"title":"1Bag","offer_id":52565617934560,"sku":"ERC-586987","price":28.99,"currency_code":"USD","in_stock":true},{"title":"4Bags","offer_id":52581616058592,"sku":"ERC-586987-2","price":101.96,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0643\/3210\/3904\/files\/Gemfan-Vortex-21x12E-Electric-Propeller-Glass-Fiber-Nylon.jpg?v=1778180377","url":"https:\/\/rcdrone.top\/products\/src-586987-vortex-21x12e-electric-propeller-glass-fiber-nylon-2-pieces-bag","provider":"RCDrone","version":"1.0","type":"link"}