Tandem
Tandem rotors are two horizontal main rotor assemblies mounted one behind the other. Tandem rotors achieve pitch attitude changes to accelerate and decelerate the helicopter through a process called differential collective pitch. To pitch forward and accelerate, the rear rotor increases collective pitch, raising the tail and the front rotor decreases collective pitch, simultaneously dipping the nose. To pitch upward while decelerating (or moving rearward), the front rotor increases collective pitch to raise the nose and the rear rotor decreases collective pitch to lower the tail. Yaw control is developed through opposing cyclic pitch in each rotor; to pivot right, the front rotor tilts right and the rear rotor tilts left, and to pivot left, the front rotor tilts left and the rear rotor tilts right.

Fly-Sky 2.4G CT6B 6-Channel Transmitter+Receiver
Regular: $49.95
SALE $34.95
79P-CT6B-R6B-RadioSystem

FS-TH9X 2.4GHz 9CH Transmitter - RC Helicopters/ Airplanes Transmitter Receiver
Regular: $179.00
SALE $89.95
79P-TH9X-R9B-9Channel-Radio

Fly Sky CT6B OEM Version Exceed RC 6-Ch 2.4Ghz Transmitter w/ Receiver (Full Version) for RC Helicopters & Airplanes
Regular: $74.95
SALE $44.70
ExceedRC-24GHz

Hobbypartz 3 Axis Gyro for Aircraft Flight Stabilizer
Regular: $39.95
SALE $19.95
73P-3AxisGyro-FixedWing-Plane

Thunder AC6 Smart Balance LiPo/Nimh Charger/Discharger w/ AC Adapter for 1-6 Lipo/ 1-15 Nimh w/ USB to PC Software
Regular: $75.00
SALE $48.95
Thunder-AC6-Charger-Power

HD 720p Dice Mini Camera with Night Vision LxWxH: 1 3/8"x1 3/8"x1 1/4"
Regular: $39.00
SALE $31.20
86P-988-Dice-MiniCam