Collective-Pitch Scale Helicopter with Positioning Assistance
The RC ERA C138 Pro is a six-channel, flybarless collective-pitch RC helicopter with Bell 206-inspired bodywork, a brushless main motor, and three digital servos. Optical-flow positioning, altitude hold, and six-axis stabilization assist hovering, while the collective-pitch system supports inverted and 3D aerobatic flight for capable pilots.
Key Features
Six-channel collective-pitch control with three digital servos
Brushless main motor and brushed tail motor
Six-axis gyro, optical-flow positioning, and altitude hold
One-key inverted-flight and stunt functions
Modular 7.4V 350mAh LiPo battery
Lightweight PA/PC composite airframe
Scale-inspired body design; no Bell authorization is claimed
Specifications
Main rotor diameter: approximately 306mm
Length: approximately 312mm
Height: approximately 101mm
Flying weight: approximately 110g
Typical flight time: 8–10 minutes per battery
Typical charge time: about 50 minutes
Advertised control range: 80–100m in suitable open conditions
Radio system: 2.4GHz
Transmitter power: 4 × AA batteries, not included
Package Contents
1 × RC ERA C138 Pro helicopter
1 × 2.4GHz transmitter and USB charger
7.4V 350mAh battery quantity selected: one or two
Two spare main blades and one spare tail rotor
Screwdriver, hex wrench, and instruction manual
Safety note: The Pro is a different collective-pitch model from the standard C138. Aerobatic and inverted flight require suitable skill, space, and setup; positioning aids do not replace pilot control. Fly away from people, animals, obstacles, and restricted areas.
