{"product_id":"sv915-12-hv-brushless-metal-gear-30kgf-cm-0-07sec-cyclic-servo-for-550-700-class-rc-helicopters","title":"KST SV915-12 SHV 12V Brushless Cyclic Servo 30Kgf.cm 0.07sec for 550-700 RC Helicopters","description":"\u003cp\u003eDesigned specifically to conquer the extreme cyclic loads of 550 to 700 class 3D and F3C competition helicopters, the \u003cstrong\u003eKST SV915-12\u003c\/strong\u003e super high-voltage brushless cyclic servo delivers an immense \u003cstrong\u003e30 kgf.cm of stall torque\u003c\/strong\u003e and a blistering 0.07s\/60° transit speed at 13V. Featuring direct 3S LiPo \/ 12V battery drive capability, an ultra-durable brushless motor, and hardened steel gears enclosed in a full CNC aluminum casing, the SV915-12 provides the unyielding swashplate authority and instantaneous pitch response that aggressive competition pilots demand.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColossal 30 kgf.cm Holding Torque:\u003c\/strong\u003e Provides massive swashplate control authority under extreme collective pitch-pumps and high-speed directional changes, eliminating cyclic deflection.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSuper High-Voltage (SHV) Direct Drive:\u003c\/strong\u003e Wide 8.0V–13.0V operating range allows direct connection to 3S LiPo receiver packs — eliminating heavy BEC voltage regulators, simplifying airframe wiring, and lowering system weight.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBlistering 0.07s Speed:\u003c\/strong\u003e Fast 0.07 sec\/60° transit response at 13V (0.08s at 12V) ensures instantaneous flybarless (FBL) cyclic tracking and razor-sharp maneuvering precision.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-Efficiency Brushless DC Motor:\u003c\/strong\u003e Delivers higher sustained torque output, cooler operating temperatures, and exceptional service life with zero brush wear under relentless 3D flight routines.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHardened Steel Geartrain:\u003c\/strong\u003e Precision-cut steel gears supported by dual ball bearings minimize backlash, resist impact loads from hard autorotations, and maintain precise centering over hundreds of flights.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFull CNC Aluminum Casing:\u003c\/strong\u003e Precision-machined alloy housing provides maximum structural rigidity, exact mounting alignment, and rapid thermal dissipation during high-power sessions.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProgrammable:\u003c\/strong\u003e Supports customizable servo parameters via KST programming tool (please refer to programming tool manual for voltage compatibility).\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e SV915-12 Brushless Cyclic Servo\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e 550–700 Class RC Helicopter Cyclic \/ Swashplate\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRated Voltage:\u003c\/strong\u003e DC 12.0V\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVoltage Range:\u003c\/strong\u003e DC 8.0V – 13.0V (2S–3S LiPo Direct Drive)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWorking Frequency:\u003c\/strong\u003e 760μs \/ 560Hz\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMotor Type:\u003c\/strong\u003e Brushless DC Motor\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGear Set Material:\u003c\/strong\u003e Hardened Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCase Material:\u003c\/strong\u003e CNC Aluminum Alloy\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBearings:\u003c\/strong\u003e Dual Ball Bearings (2BB)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePosition Sensor:\u003c\/strong\u003e Potentiometer\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e -10°C to +65°C\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProgrammable:\u003c\/strong\u003e Yes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 40.5 × 20.0 × 38.0 mm (±0.2mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 70g (±10%)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003ePerformance Ratings\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStall Torque:\u003c\/strong\u003e\n    \u003cul\u003e\n      \u003cli\u003e24 kgf.cm @ 8.4V\u003c\/li\u003e\n      \u003cli\u003e28 kgf.cm @ 12.0V\u003c\/li\u003e\n      \u003cli\u003e30 kgf.cm @ 13.0V\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOperating Speed (No-Load):\u003c\/strong\u003e\n    \u003cul\u003e\n      \u003cli\u003e0.10 sec\/60° @ 8.4V\u003c\/li\u003e\n      \u003cli\u003e0.08 sec\/60° @ 12.0V\u003c\/li\u003e\n      \u003cli\u003e0.07 sec\/60° @ 13.0V\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eDimensions \u0026amp; Sizing\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0846\/8280\/1402\/files\/SV915-12-02.png?v=1789630022\" alt=\"KST SV915-12 Servo Dimensions Diagram 1\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0846\/8280\/1402\/files\/SV915-12-01.png?v=1789630022\" alt=\"KST SV915-12 Servo Dimensions Diagram 2\"\u003e\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003eDocumentation\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0846\/8280\/1402\/files\/SV915-12_Specification_e5e8b905-0ed5-41fe-817d-78f31b91524d.pdf?v=1789629799\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eDownload SV915-12 HV Brushless Servo Technical Specification Sheet (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KST","offers":[{"title":"Default Title","offer_id":50446372274426,"sku":null,"price":88.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0846\/8280\/1402\/files\/SV915-12-4.png?v=1789014756","url":"https:\/\/kstdigital.com\/products\/sv915-12-hv-brushless-metal-gear-30kgf-cm-0-07sec-cyclic-servo-for-550-700-class-rc-helicopters","provider":"KSTDigital","version":"1.0","type":"link"}