AK400 from STEAM



  • Direct Drive Motor: Ensures efficient power transmission and superior performance.
  • Carbon Fiber Main Blade: Offers lightweight and high-strength characteristics for improved flight.
  • Versatile Tail Blade: Comes with 68mm and 71mm plastic tail blades for different flight characteristics.
  • Optimized Rotor Ratios: Features a 1:1 main rotor and 4:1 tail rotor ratio for balanced and stable flight.
  • Recommended Equipment Provided: Detailed  recommendations for speed controller and battery specifications for optimal performance.


Radio icons

FrSky X20

FrSky XE

PNG (300x280)

BMP Recommended (300x280)

FrSky X18

FrSky Twin

PNG (180x166)

BMP Recommended (180x166)

FrSky X10

FrSky X12s

PNG (180x160)

BMP Recommended (180x160)

FrSky X10

FrSky X12s

PNG (192x114)

FrSky X9D

FrSky X9E

BMP (64x32)

BMP (64x32)

FrSky X10

FrSky X12s

JPG (155x100)

Similar Models

Some content in menu 2.

We cannot guarantee that the shops listed below do sell the AK400 in particular but at least we know they do distribute STEAM.

Where to buy

Wingspan: 800mm (31.5 in)
Length: 800mm (31.5 in)

Weight: 970 g (2.1 lbs)
  • Type: Direct Drive Motor Helicopter Model
  • Main Blade Length:380~400mm
  • Tail Blade length:56~74mm
  • Cyclic Servos:Micro size Cyclic Servos
  • Tail Servo: Mini size Tail Servo
  • Main Rotor Ratio:1 : 1
  • Tail Rotor Ratio:4 : 1
  • Recommended speed controller:6S 70~80Amps
  • Recommended battery:6S 2700~3200mAh
  • Recommended battery weight:≈390~460g
  • Weight(No power system):970g (Include blade and canopy)
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