Features:
1. Both the T-Rex 400 Nitro and 400 Nitro PRO include a Beautiful factory painted fiberglass canopy. Canopy also features a rigid easy clip on/off design for fast installation and removal.
2. Simple and light weight design provides awesome flight performance nearly equal to larger helicopters while still maintaining very stable hovering and flight.
3. +-14 collective pitch is possible for extreme 3D performance.
4. Clutch, Fan and Bell assembly provide a very smooth operation even at high RPM.

5. Forward mounted tail servo helps to keep exhaust oil from entering servo also improves the CG.
6. Pitch and All servos moved forward for CG.
7. Battery tray designed for easy and clean radio gear installation.
8. Fuel Tank Capacity 440cc for about 10 minutes 3D flying.

9. Main Gear Radio 8.5: 1, 1500-2200 Rotor RPM.
10. Heavy duty tail with thrust bearings.
11.95mm Tail Blades.
12. Torque Tube driven tail for incredible 50 sized performance.

13. Rigid frame design that can also handle hard crashes without damage.
14. Carbon Fiber frames, fins and boom supports.
15. Super engine cooling system features large diameter fan and very efficient airflow to provide unequaled cooling and horsepower.
16. Clutch/Start shaft feature a 10mm ID one way bearing to eliminate any bearing problems during starting and flight.

17. Ready to fly weight (no fuel) is an incredible 3.20Kg (7lbs).
18. Fuel Tank designed so that no additional header tank is required.
19. New main gear with one-way bearing design for high torque.
20. New flybar paddles feature light weight and sports.
21. New flybar control set design.
22. New tail boom supports.

Specification:
Length: 1160mm
Height: 410mm
Main Blade Length: 600mm
Main Rotor Diameter: 1350mm
Tail Rotor Diameter: 240mm
Engine Pinion Gear: 20T
Autorotation Tail Drive Gear: 180T
Drive Gear Ratio: 8.1: 1: 4.5(E: M: T)
Flying Weight: Approx. 3200g

Accessories:
T-REX 400 Nitro PRO Kits SetX1 set(w/o main blade)
Painted fiberglass canopyX1
Feul tubeX1
Fuel filterX1
New Fuel tube clip(A)X1
New Fuel tube clip(B)X1
New landing skidX1
Radio transmitter and electronic equipment required for assembly:
Transmitter(6-channel or more, helicopter system)
Receiver(6-channel or more)
Standard servoX4
Head lock gyroX1
Specialized servoX1
600 bladeX1set
Pitch gaugeX1
50 mufflerX1
50 engineX1
Engine starter/Starter shaftX1
11.1~14.8V Li-Po 2500mAh starter batteryX1
2 in 1 regulator(RX and Glow plug power)X1
7.4V 1900mAh Li-Po battery for regulatorX1
Fuel pumpX1
Engine fuelX1

Have got the certificate of CE FCC RoHS 3C.