{"product_id":"src-586991-vortex-21x13e-electric-propeller-glass-fiber-nylon-2-pieces-bag","title":"Gemfan Vortex 21x13E Electric Propeller, Glass Fiber Nylon, 6.35mm Bore, 2PCS\/Bag","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\u003cp\u003eThe \u003ca href=\"https:\/\/rcdrone.top\/collections\/gemfan-propeller\" title=\"Gemfan Propeller\"\u003eGemfan\u003c\/a\u003e Vortex 21x13E is an electric propeller made from glass fiber nylon, supplied as 2 pieces per bag. Size is 21x13E (21-inch diameter, 13-inch pitch) with a 6.35 mm (0.25 in) center hole.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e21x13E electric propeller (21 in diameter, 13 in pitch)\u003c\/li\u003e\n\u003cli\u003eGlass fiber nylon construction\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\u003cp\u003eFor fitment and setup questions (shaft\/adapters, \u003ca href=\"https:\/\/rcdrone.top\/collections\/drone-motor\" title=\"Drone Motor\"\u003emotor\u003c\/a\u003e matching, and mounting hardware), contact support@rcdrone.top or visit https:\/\/rcdrone.top\/.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSize\u003c\/td\u003e\n\u003ctd\u003e21x13E\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\u003e13 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\u003e121.26 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\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eGlass fiber nylon\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eStatic Test Data (from provided image)\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eHeader: GemFan\u0026amp;Xoar 21x13, 6360-190KV\u003c\/li\u003e\n\u003cli\u003eVoltage: 37V\u003c\/li\u003e\n\u003cli\u003eNote: X-axis is throttle\u003c\/li\u003e\n\u003c\/ul\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eThrottle %\u003c\/th\u003e\n\u003cth\u003e10\u003c\/th\u003e\n\u003cth\u003e20\u003c\/th\u003e\n\u003cth\u003e30\u003c\/th\u003e\n\u003cth\u003e40\u003c\/th\u003e\n\u003cth\u003e50\u003c\/th\u003e\n\u003cth\u003e60\u003c\/th\u003e\n\u003cth\u003e70\u003c\/th\u003e\n\u003cth\u003e80\u003c\/th\u003e\n\u003cth\u003e90\u003c\/th\u003e\n\u003cth\u003e100\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent (A)\u003c\/td\u003e\n\u003ctd\u003e1.33\u003c\/td\u003e\n\u003ctd\u003e2.72\u003c\/td\u003e\n\u003ctd\u003e4.76\u003c\/td\u003e\n\u003ctd\u003e8.58\u003c\/td\u003e\n\u003ctd\u003e15.49\u003c\/td\u003e\n\u003ctd\u003e24.75\u003c\/td\u003e\n\u003ctd\u003e38.20\u003c\/td\u003e\n\u003ctd\u003e52.93\u003c\/td\u003e\n\u003ctd\u003e71.51\u003c\/td\u003e\n\u003ctd\u003e77.88\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRPM\u003c\/td\u003e\n\u003ctd\u003e645\u003c\/td\u003e\n\u003ctd\u003e1644\u003c\/td\u003e\n\u003ctd\u003e2243\u003c\/td\u003e\n\u003ctd\u003e2820\u003c\/td\u003e\n\u003ctd\u003e3493\u003c\/td\u003e\n\u003ctd\u003e4099\u003c\/td\u003e\n\u003ctd\u003e4713\u003c\/td\u003e\n\u003ctd\u003e5210\u003c\/td\u003e\n\u003ctd\u003e5699\u003c\/td\u003e\n\u003ctd\u003e5843\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThrust (g)\u003c\/td\u003e\n\u003ctd\u003e184\u003c\/td\u003e\n\u003ctd\u003e712\u003c\/td\u003e\n\u003ctd\u003e1514\u003c\/td\u003e\n\u003ctd\u003e2437\u003c\/td\u003e\n\u003ctd\u003e3699\u003c\/td\u003e\n\u003ctd\u003e5082\u003c\/td\u003e\n\u003ctd\u003e6725\u003c\/td\u003e\n\u003ctd\u003e8126\u003c\/td\u003e\n\u003ctd\u003e9805\u003c\/td\u003e\n\u003ctd\u003e10346\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEfficiency (g\/W)\u003c\/td\u003e\n\u003ctd\u003e3.7\u003c\/td\u003e\n\u003ctd\u003e7.1\u003c\/td\u003e\n\u003ctd\u003e8.6\u003c\/td\u003e\n\u003ctd\u003e7.7\u003c\/td\u003e\n\u003ctd\u003e6.4\u003c\/td\u003e\n\u003ctd\u003e5.6\u003c\/td\u003e\n\u003ctd\u003e4.8\u003c\/td\u003e\n\u003ctd\u003e4.2\u003c\/td\u003e\n\u003ctd\u003e3.8\u003c\/td\u003e\n\u003ctd\u003e3.7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eWhat’s Included\u003c\/h2\u003e\u003cul\u003e\u003cli\u003e2PCS Propellers \/ Bag\u003c\/li\u003e\u003c\/ul\u003e\u003ch2 id=\"details\"\u003eDetails\u003c\/h2\u003e\u003cdiv class=\"details-gallery\"\u003e\n\u003cimg alt=\"Static test data chart for Gemfan Vortex 21x13E propeller at 37V (current, RPM, thrust, efficiency vs throttle)\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Gemfan-Vortex-21X13E-Electric-Propeller-Glass-fiber-nylon2.png?v=1778180022\"\u003e\u003cp\u003eStatic test results at 37V list current draw, RPM, thrust, and efficiency across the full throttle range for setup reference.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Gemfan","offers":[{"title":"1Bag","offer_id":52565605056736,"sku":"ERC-586991","price":28.99,"currency_code":"USD","in_stock":true},{"title":"4Bags","offer_id":52581615829216,"sku":"ERC-586991-2","price":101.96,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0643\/3210\/3904\/files\/Gemfan-Vortex-21x13E-Electric-Propeller-Glass-Fiber-Nylon.jpg?v=1778180122","url":"https:\/\/rcdrone.top\/products\/src-586991-vortex-21x13e-electric-propeller-glass-fiber-nylon-2-pieces-bag","provider":"RCDrone","version":"1.0","type":"link"}