The KST X15-1208 is one of the most popular 15 mm servos from KST and a top choice for 3D aerobatic pilots. Its outstanding balance of low weight, high torque, and durability makes it ideal for 3D and precision aircraft up to around 1.7 m wingspan. Equipped with hardened steel gears, dual ball bearings, and fast digital electronics, it delivers precise, reliable, and backlash-free Control.
With a wide HV voltage range from 6.0 to 8.4 V, the X15-1208 can be used in modern setups powered directly by 2S LiPo receiver packs. Combined with its coreless motor, the servo offers impressive speed and power, making it perfect for aileron, elevator, or rudder applications in high-performance models.
The servo is fully programmable using the KST programming tools, allowing fine-tuning such as soft-start behavior to protect linkages and gear trains. Please always follow the servo specifications recommended by the aircraft manufacturer.
Technical Specifications:
- Operating voltage: 6.0 – 8.4 V
- Torque @6.0 V: 9.8 kgf cm
- Torque @7.4 V: 12.0 kgf cm
- Torque @8.4 V: 13.5 kgf cm
- Speed @6.0 V (60°): 0.10 s
- Speed @7.4 V (60°): 0.08 s
- Speed @8.4 V (60°): 0.07 s
- Dimensions (W × L × H): 15.0 × 35.5 × 32.5 mm
- Weight: 40.0 g
- Motor type: Coreless
- Frequency range: 1520 µs/333 Hz, 1000 – 2000 µs
- Gear type: Steel
- Bearing type: Dual ball bearings (2BB)
- Spline: 25T-6
- Servo type: Midi
- Electronics: Digital
- Position sensor: Potentiometer
- Waterproof: No
- Soft start: Programmable
- Programmable with: KST Tool #3 and KST Tool #5
- Manufacturer: KST
Features:
- HV compatible up to 8.4 V
- Hardened steel gears for high durability
- Dual ball-bearing output shaft for smooth precision
- Vertical mounting tabs for easy installation
- Lightweight yet powerful coreless motor
- High-quality potentiometer position sensor
- 25T-6 spline for standard servo horns
- Digital, programmable electronics with adjustable soft-start
- Ideal for 3D and aerobatic models up to approximately 1.7 m wingspan
Please always check the recommended servo specifications of your model’s manufacturer before selecting your servos.
