T-REX 450 Plus DFC BTF Helicopter by Align w/3GX MRS/ESC/Motor & CF Blades

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This is the Align T-REX 450 Plus DFC "Bind to Fly" Super Combo Helicopter, with an included 3GX MRS flybarless system. The T-REX 450 Plus DFC is an ideal choice for entry level helicopter enthusiasts! This fully assembled helicopter features high quality Align electronics and allows you to get the machine airborne faster than ever before by eliminating assembly and a majority of the setup process. The only additional equipment that is required to complete the setup is a pitch gauge and a swashplate leveler. Once those minor setup processes are complete, simply add your 3S battery and bind your Futaba S-FHSS, Align T6, or JR DSM2/Spektrum DSM2/DSMX 2.4GHz transmitter to the system, and you're ready to fly!

The helicopter features the renown DFC rotor head assembly, paired with the 3GX MRS flybarless system and DS415M digital cyclic servos. These parts have been chosen to suit the T-REX 450 PLUS flight characteristics, and deliver optimum stability for pilots of all levels. But, that doesn't mean that the 3GX MRS lacks adjustability! Enthusiasts that want to fine tune the 3GX MRS even further can do so by following a few simple steps. The 3GX MRS has a FHSS/DSM2/DSMX 2.4GHz receiver built in, providing a space saving two-in-one package! Combine this electronics package with the RCE-BL35P ESC and 450MX 3500kV motor, and you get a quality 450 class machine with high end electronics that a new pilot can grow with, but can be tuned to suit a 3D master.


  • Factory assembled and tuned BTF version. Plug in a battery, bind to an S-FHSS transmitter and experience immediate flight.
  • Equipped with the low CG DFC rotor head, effectively reducing wind resistance during flight, providing the most direct and precise control feel back to the pilot.
  • Equipped with 3GX MRS flybarless system, with built in FHSS/DSM2/DSMX 2.4GHz receiver function, for a simpler and more direct setup, with settings optimized for the T-Rex 450 Plus DFC.
  • Four piece frame plate design with imbedded servo mounting platform for fast servo install/removal without mounting nuts.
  • Narrow lower frame plate and base plate design improves strength, rigidity and agility.
  • Specially designed in-between frame rudder servo mount for centralized CG location for improved 3D flying, while minimizing crash damages to rudder servo.
  • Equipped with MX series high efficiency brushless motor, with dramatically improved cooling efficiency for excellent power output.
  • Equipped with REC-BL35P brushless controller featuring step-less adjustable BEC voltage between 5V to 6V.
  • Dedicated rudder gyro mounting platform to isolate vibration from the tail, improving gyro performance.
  • Re-designed battery mounting platform with integrated ESC mount for streamlined electronics mounting.
  • High precision tail pitch control assembly with aesthetically pleasing and functional design.
  • Weighted tail blade grips effectively increases smoothness of rudder pitch action.
  • Aerodynamic canopy airbrushed with colorful graphics.

450 Plus Specifications:
Length: 634mm
Height: 202mm
Main Rotor Diameter: 715mm
Tail Rotor Diameter: 158mm
Motor Drive Gear: 11T
Main Drive Gear: 112T
Autorotation Tail Drive Gear: 106T
Tail Drive Gear: 25T
Drive Gear Ratio: 1:11:4.24
Flying Weight: Approx. 584g

3GX MRS Specifications:
Operating Temperature: -10~60 degree
Suitable Voltage Range: DC 3.5~8.4V
Operating current consumption: <100mA @4.8V
Operating humidity: 0%~95%
RoHS certified: Yes
X and Y axis Operating Angle Range: -300~+300 degree
Z axis Operating Angle Range: -600~+600 degree
Size: 37.6x22.4x13mm
Weight: 10g


  • (1) T-REX 450 Plus DFC Kit
  • (1) 3GX MRS Flybarless System
  • (1) 325D 3G Carbon blades set
  • (1) RCE-BL35P 35A Brushless ESC
  • (1) 450MX Brushless motor (3400KV)
  • (3) DS415M Metal Gear Digital servos
  • (1) DS425M Digital servo

Needed to Complete:

  • Futaba S-FHSS, ALIGN T6 or JR DSM2/Spektrum DSM2/DSMX transmitter
  • Spektrum/JR systems require the use of a Spektrum SPM9645 DSMX remote receiver or Spektrum SPM9545 DSM2 remote receiver
  • 3S1P 11.1V 2200 mAh/30C Li-polymer Battery
  • Li-poly battery charger
  • Pitch gauge
  • Swashplate leveler

This product was added to our catalog on August 1, 2013.

Sid Hirst
Verified Owner
Saturday, Mar 21 2015 (about a year ago)
Align T-REX 450 Plus DFC BTF Helicopter
I purchased this helicopter on the 8th Dec 2014. It arrived in New Zealand about a week later. I also purchased a Spektrum SPM9645 remote reciever as well so I could use my spektrun DX6I Transmitter. I have been flying small Collective pitch helis for about 12 months prior to this and as I'm in my 60s it takes a while to learn these things. When I recieved the Trex the canopy had been damaged in transit, also the batteries were swallen and I didn't like to use them in this state. Amain Hobbies were very good to deal with and reinbersed me for the canopy and batteries which I was very greatfull for. As I,m realativly new to these larger birds it took me two evenings before I managed to get it to bind and was able to opperate it. My first flight was very succesful with no problems, it is extreamely stable. I keep a log of all flights and my first crash was at flight 155, trying to fly it inverted. It did about $50.00 of damage, but all parts were readily avaliable and had it flying again in no time, it flys just as well or better than before. It is now the 22nd March 2015 and I have had 268 flighs with it with no more crashes. I can now do rolls, loops, fly inverted with no problems. I can highly recommend this helicopter especially to learn on. I can also highly recommend Amain Hobbies as they are great to deal with. Sid