Price: US $494
Website: zetdar(dot)com
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Type: 550-class collective-pitch electric flybarless helicopter
Main Rotor Diameter: 49.0 in (1245mm)
Tail Rotor Diameter: 9.45 in (240mm)
Gross Weight: 7.39?7.72 lb (3.35?3.50 kg)
Length: 44.5 in (1130mm)
Main Gear Ratio: 12.07:1
Motor Size: 550-size 1350Kv brushless outrunner (included)
Kit/ARF/RTF: Kit
Control System: 120-degree CCPM
Rotor Blade Length: 550mm
Minimum Age Recommendation: 14 years
Experience Level: Professional
Recommended Environment: Outdoor
Assembly Time: 5-7 Hours
Is Assembly Required: Yes

Features:

• Carbon fiber main frames

• CNC-machined aluminum swashplate

• Triple ball bearing-supported, 10mm solid steel main shaft

• Torque tube-driven tail with aluminum tail boom and case

• E-Flite Heli 550, 1360Kv brushless outrunner motor

• Direct-to-swash, flybarless head design

• CNC-machined aluminum head block

• Revolution 550mm carbon fiber main blades

• Integrated bearing block servo mount design

• Dual-point tail pitch slider and balanced tail grips

• E-Flite 10-amp BEC


Every  part, down to the nuts and bolts, has been designed or chosen with one  goal in mind; giving you a no compromise, 550-size 3D machine that is  second to none. Both kit and combo versions of the 550 X heli arrive  ready for you to assemble with a motor, and BEC. The Blade 550 X models a  no compromise thrill machine that delivers the performance that expert  helicopter pilots demand.

Includes:
One Revolution flybarless 550mm carbon fiber main blade set
One E-Flite Heli 550, 1360Kv brushless outrunner motor
One E-Flite 10-amp BEC
One Pre-painted fiberglass canopy
One Spektrum AR7200BX 7-channel DSMX Flybarless Control System
Three Spektrum H6040 digital, high-speed cyclic servos
One Spektrum H6080G gryo servo

Requires:
6+ channel DSM2 or DSMX-compatible computer transmitter with helicopter programming
Brushless ESC
6S 5000–6000mAh 30C Li-Po battery
6S Li-Po battery charger
Tools for assembly