Specification :

Specifications :
1. Main Rotor Diameter (Upper): 450 mm
2. Main Rotor Diameter (Lower): 450 mm
3. Overall Length: 440 mm
4. Drive System: 2X370 SH
5. Battery: 7.4V 1250mAh Li-Po battery
6. All-up Weight: 355g (Battery included)
7. Transmitter: 4CH PPM
8. Gyro: Not used
9. 53#1 Receiver: RX-406
10.53# Receiver: 3-in-1 receiver (receiver, speed controller, gyro)
11. Servo: weight 8.5g / speed 0.11sec/60°(4.8V) / torque 0.9kg/cm (4.8V) / dimension 22.5X11.5X24mm

Features :
1. Coaxial structure effectively offers stable flight and easy operation. The HM 53# series is an optional model for the early beginner.
2. 53#1 design of metal main frame, metal swash plate and metal rotor head is of legerity, innovation, precise and stability.
3. The combination of prompt servos ensures various flight courses.
4. It is possible to adjust the servo extent and the sensitivity of built-in gyro. Customized fine adjustment makes your flight more perfect.
5. The high-volume 7.4V 1250mAh Li-Po battery pack. A full charged cycle will offers the HM 53# series with 10- to 14-minute flight.