Product Description :

Features :

* First production model of its kind. 425mm Nitro powered by GAUI 37 Engine.
* Extremely easy to tune engine.
* 220cc/9oz fuel tank provides 6.5 min+ flight times.
* Incredible fuel economy allowing close to 17 flights/gallon of fuel.
* Excellent power to weight ratio similar to most .90 sized Nitro Helicopters.
* Simple, robust, reliable frame construction.
* Plenty of frame space for mounting electronics.
* “Electric feeling” gear ratio-model provides excellent low-end
* torque and is very forgiving for inexperienced pilots.
* Many parts shared with GAUI X4 and GAUI X5.
* Direct Servos -> Swash for 120-degree CCPM providing extremely easy setup and operation.
* Adjustable servo mounting blocks for precise CCPM operation.
* Accommodates “Mini” sized servos.
* 8mm Main Shaft. 6mm Head Axle (spindle).
* Stylish pre-painted FRP Canopy.

Content :

NX4 Basic Kit x 1 set

* Tail Rotor Blade Set(70mm) x 1 set

Specifications :

* Main blade size : 425~460mm
* Tail blade size : 70~77mm
* Main Gear ratio : 7.06: 1
(120t main gear 17t pinion)
* Tail drive ratio : 4.36: 1 (61 / 14)
* Fuel tank : 220cc / 9oz
* Servo size : “Mini”

Suitable engine for Gaui NX4 :

1.O.S MAX 37SZ-H
2.O.S 50SX-H(additional item required)
3.O.S 55HZ-R DRS(additional item required)
4.O.S 55HZ-H Hyper(additional item required)
5.GAUI T-10(Discontinued)

Required for operation :

* Engine : O.S MAX 37SZ-H
* Muffler : 30 class muffler.
* CCPM Servos x3
* Tail Servo x1
* Throttle Servo x1
* Flybarless System x1
* CF main blades x1