T-REX 550L from Align


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.


  • 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.



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Wingspan: 1248mm (49.1 in)
Length: 1070mm (42.1 in)

Weight: 2790 g (6.2 lbs)
  • 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


T-REX 550L (Red Blue)
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