The JJRC U9901 is a compact six-channel flybarless helicopter with a brushless direct-drive motor, altitude hold and optical-flow positioning assistance. Its stabilized flight system is designed to make hovering and basic directional flight more manageable while retaining proportional control.
Key Features
Flybarless rotor system with six-axis stabilization
Brushless direct-drive main motor
Altitude hold and optical-flow positioning assistance
Six-channel proportional control
One-key takeoff and landing
Low-voltage, motor-stall and signal-loss protection functions
Green and gray color options
Specifications
Dimensions: approximately 250 × 180 × 75 mm
Weight: approximately 121 g
Flight time: approximately 8 minutes
Charge time: approximately 80 minutes
Control range: approximately 100 m in open conditions
Radio frequency: 2.4GHz
Flight battery: 7.4V 300mAh lithium polymer
Transmitter batteries: 4 × AA, not included
Package Includes
1 × JJRC U9901 helicopter in the selected color
1 × transmitter
1 × flight battery
2 × spare main rotor blades
1 × spare tail rotor blade
1 × USB charger
1 × screwdriver
1 × user manual
Safety: Optical flow and altitude hold are pilot aids, not collision avoidance. Fly in a clear area and follow local rules. Performance varies with light, surface texture, wind and battery condition.
