NX4 from GAUI



  • First production model of its kind.
  • 450mm Nitro powered by Nitro 50 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.


Radio icons

(Click on the icon you want to download)
FrSky X20/X20s/XE Ethos
FrSky X18/X18s/TWIN Ethos
FrSky Horus OpenTx
FrSky Horus FrOs
FrSky X9D/X9D+/X9E
Spektrum IX12 & IX20
Futaba 18MZ
Jeti DS-24
Graupner MZ-16 & MZ-32
Radiomaster TX16S
Jumper T16 & T18 series

Similar Models

Some content in menu 2.

We cannot guarantee that the shops listed below do sell the NX4 in particular but at least we know they do distribute GAUI.

Where to buy

Heli Shop
check web site
Ship to: Europe

Wingspan: 920mm (36.2 in)
Length: unknown

Weight: unknown

●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”


NX4 (Red White)
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