This is the Align T-REX 550L Dominator Super Combo Helicopter Kit. With a size that falls in-between large and small models, the T-REX 550 delivers stability and agility that make it incredibly popular. The T-REX 550L Dominator features Align's outstanding design concepts and has been combined with a superior power system that will guaranteed jaw dropping performance.

T-REX 550L utilizes composite material integration technology on the carbon side frame plates, also adding battery mounting rails and top mounted motor base design to make assembly easy and protect the components. Using direct servo CCPM control, and a single piece main bearing block with integrated servo mounts; combined with the low CG DFC rotor head, the 550L delivers exhilarating 3D performance and unimaginable flight speed. Plus, a high quality tail gearbox design, combined with a dual point mounted tail pitch control assembly helps to minimize slop and increase rudder control precision.

T-REX 550L Dominator has been equipped with the 730MX 850KV motor with unique DOMINATOR scheme to provide extremely efficient and powerful output. High voltage brushless BL815H/BL855H servos provide high torque and precise, lightning fast reaction, and low operating temperatures after flight will extend the service life.

Gpro
Align's multifunctional Gpro flybarless system with active CPU, processes 20 times faster than the previous generation. The updated software structure improves system compensation with precise and agile response, and can be updated as changes are released. The most important feature is that Gpro utilizes the latest iOS and Android app's to allow easily and direct adjustment through a mobile phone! A human oriented interface rounds out the package to allow convenient and rapid setup and installation. 

Features:

• T-Rex 550L Dominator
  • Equipped with the low CG DFC rotor head, for exhilarating 3D performance and unimaginable flight speed.
  • Designed with direct servo CCPM control, and a single piece main bearing block with integrated servo mounts similar to that of T-Rex 700L, for simplified servo installation and clean aesthetic.
  • Updated swash anti-rotation guide with embedded anti-wear material, effectively minimize the wear between swashplate long ball and guide.
  • Innovative sliding battery tray rails imbedded into the 3K side frames, with patented spring loaded latching mechanism, allowing for quick battery access as well as battery protection.
  • Carbon side frame plates utilized composite material integration technology, adding battery mounting rails. The clever use of open spaces within the frame resulting in a structure that is both rigid and aesthetically pleasing.
  • High quality tail gearbox design, combined with dual point mounted tail pitch control assembly to minimize slops and increase rudder control precision.
• Gpro Controller
  
  • CPU processing 20 times faster than previous generation for precise and agile response.
  • Fresh software process structure improves system compensation and keeps up-to-date flying performance.
  • Utilizes latest iOS and Android APP that can be used to easily and directly adjust settings through mobile phone while flying outdoors.
  • Human oriented interface allows convenient and rapid setup and installation.
  • Superior flying characteristic remain the same flying control among T-REX 250~800 helicopters.
  • Supports 90/120/135/140 CCPM swashplates
  • Spektrum and JR Satellite receivers support (Replaces original factory receiver)
  • Futaba S.BUS/JR X.BUS system support
  • Supports Wide/Narrow Bandwidth Digital and brushless servos
  • Compatible with 2 to 5 blades rotor heads
  • Built in governor function
  • Compatible with 1024/2048 resolution Spektrum receivers
  • Field setup without the use of a PC
  • Support up to 6 servos
  • Automatic servo type recognization

Specifications:

• 550L Dominator:
  • Length: 1070mm
  • Height: 337mm
  • Width: 210mm
  • Main Blade Length: 550mm
  • Main Rotor Diameter: 1248mm
  • Tail Rotor Diameter: 254mm
  • Motor Drive Gear: 16T
  • Main Drive Gear: 112T
  • Autorotation Tail Drive Gear: 131T
  • Tail Drive Gear: 34T
  • Drive Gear Ratio: 1:7:3.85
  • Weight (w/o power system): 2790g
• Gpro Flybarless System
  • Operating Voltage Range: DC 3.5V~8.4V
  • Operating Current Consumption: <80mA @4.8V
  • X and Y axis Operating Angle Range: -300~+300 degree
  • Z axis Operating Angle Range: -600~+600 degree
  • Sensor Resolution: 12bit
  • Maximum Working Voltage: 8.5V
  • Operating Temperature: -20~60 degree
  • Operating Humidity: 0%~95%
  • Size: 36.5x25.2x15.6mm
  • Weight: 11g

Includes:

• (1) T-REX 550L DOMINATOR Kit
• (1) 550 Carbon Fiber Blade set
• (1) 90mm Carbon Fiber Tail Blade set
• (1) 730MX Brushless Motor(850KV)
• (3) BL815H High Voltage Brushless servo
• (1) BL855H High Voltage Brushless servo
• (1) Castle Talon 90 Brushless ESC
• (1) Gpro Flybarless System

Needed to Complete:

• Transmitter (6-channel or more,helicopter system)
• Receiver (6-channel or more)
• Pitch gauge or Digital Pitch Gauge
• 6S Li-Po 2600~5200mAh battery & Charger