Gaui NX4 remote control Nitro Helicopter with servos and extras.
Includes:
-Gaui GS-511 Servos (4) and (1) Gaui GS-518 Tail Servo
-Gaui Engine Upgrade parts for NX4 OS.50 / OS.55
-Gaui NX4 side frame strenghthener upgrade (1.6mm)

Note: Engine fan shroud was modified as per instructions to fit OS.50 Hyper.
SPECS:
●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. Carbon side frames same part # both L & R.
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.
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 (176g)
Servo size: “Mini”

Delivery content: -#313450-FRP painted canopy
-#313500-NX4 CF Tail Rotor Blade Set(77mm) x1
-#313600-CF main blades (425L-CFA) x1
-#922511-GS-511 Coreless metal gear Mini Servox4
-#922518-GS-518 Coreless metal gear Mini Servo x1
GAUI Mini VBar x1