HappyModel Sailfly-X BNF

HappyModel Sailfly-X BNF
HappyModel Sailfly-X BNF HappyModel Sailfly-X BNF HappyModel Sailfly-X BNF HappyModel Sailfly-X BNF HappyModel Sailfly-X BNF HappyModel Sailfly-X BNF
Brand: HappyModel
Product Code: Sailfly-X
Availability: In Stock
Price: USD$99.99 USD$79.99
Discount: USD$20.00
Save: 20%

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HappyModel's latest micro quad.


  • For FrsKY users we recommend using the D8 protocol.  This receiver uses SPI RX and there have been issues with the Betaflight D16 code.


  • Crazybee F4 PRO V2.1 AIO Flight controller 2-3s Lipo Compatible
  • The lightest 1102 brushless motor only 2.8g with double ball bearings
  • Light ,Powerful and smoothly
  • AIO 5.8g 40ch 25mw vtx / 700tvl camera with smartaudio
  • 2mm carbon fiber frame with TPU 3d-printed canopy
  • Betaflight OSD support ,easy to get RSSI, Voltage ,current from your goggles (DSMX version no RSSI output)
  • Frsky version support both NON-EU and EU-LBT Frsky transmitter
  • Flysky version support both AFHDS and AFHDS-2A protocol transmitter
  • DSM2/DSMX version support DSM2 and DSMX compatible Spektrum transmitter
  • Full telemetry function ready (Frsky and Flysky version support)
  • BNF
  • Compatible both for 2s-3s Lipo/LIHV



  • Mode: EX1102 KV8500
  • Configu-ration:9N12P
  • Stator Diamter:11mm
  • Stator Length:2mm
  • Shaft Diameter:Φ1.5mm
  • Motor Dimension(Dia.*Len):Φ13.5mm*16mm
  • Weight(g):2.8g
  • No.of Cells(Lipo):2S-3S

Flight controller:    

  • (Frsky version) CRAZYBEE F4FR PRO V2.1 Firmware target: CrazybeeF4FR
  • (Flysky version) CRAZYBEE F4FS PRO V2.1 Firmware target: CrazybeeF4FS
  • (DSM2/DSMX version) CRAZYBEE F4DX PRO V2.1 Firmware target: CrazybeeF4DX
  • MCU:STM32F411CEU6 (100MHZ, 512K FLASH)
  • Sensor: MPU-6000(SPI connection)
  • Board size: 28.5 * 28.5MM
  • Power supply: 2-3S battery input (DC 7.4-13V)
  • Built-in 5A(each) Blheli_S 4in1 ESC Dshot600 ready
  • Frsky version Built-in SPI Frsky receiver with telemetry(D8/D16 switchable)
  • Flysky version Built-in SPI Flysky receiver with telemetry(AFHDS/AFHDS2A switchable)
  • DSM2/X Version built-in Serial-based DSM2/DSMX compatible satellite receiver
  • Built-in Betaflight OSD (SPI Control)
  • Built-in Current meter Max 28A
  • Current meter scale set to 1175
  • Built-in 5V 1A BEC with LC filter
  • Built-in voltage detection

Onboard 4in1 ESC:    

  • MCU upgraded to EFM8BB21
  • Power supply: 2-3S LiPo/LiPo HV (7.4v/13v)
  • Current: 5A continuous peak 6A (5 seconds)
  • Support BLHeliSuite programmable
  • Factory firmware: S_H_50_REV16_7.Hex
  • Default protocol: DSHOT600

Frsky receiver Version:   

  • SPI BUS receiver
  • Frsky D8/D16 switchable
  • Failsafe support
  • No ground interference (Transmitter and receiver 1 m from the ground): 300m

Flysky receiver Version:

  • SPI BUS receiver
  • Protocol: AFHDS and AFHDS-2A Switchable
  • Channels: 8ch(AFHDS) or 14ch(AFHDS-2A)
  • No ground interference (Transmitter and receiver 1 m from the ground): 300m
  • Failsafe support

DSM2/DSMX receiver version:

  • Serial bus receiver
  • Protocol: DSM2/DSMX compatible
  • Channels:6-9 (Depending on your radio)
  • No ground interference (Transmitter and receiver 1 m from the ground): 300m

AIO Camera&VTX:

  • HCF7P
  • Output power: 25mw
  • Frequency: 40CH
  • Input voltage: 3.3V 5.5V
  • Current consumption: 300mA(type)
  • Camera resolution: 700TVL
  • Field of view: 120°
  • Video Format: NTSC
  • Antenna: RG178 antenna
  • Frequency: 5.8GHz 5bands 40 channels
  • With Raceband
  • Smartaudio ready(DSMX version not compatible)
  • Size: 13.9″12.0mm ( L*W )
  • Weight: 3.2g

Lipo Battery:

  • Capacity:300mAh
  • Voltage:11.4v
  • Continuous Discharge Rate: 30C
  • Instantaneous discharge rate: 60C
  • Size: 65mmx18mmx11mm
  • Weight: 25g
  • Connector: XT30


  • 1x Sailfly-X frame
  • 1x 30 degree angle canopy(red 3d print tpu)
  • 1x 40 degree angle canopy(purple 3d print tpu)
  • 4x EX1102 KV8500 Motor 1.5mm shaft
  • 1x 65mm propeller(6cw+6ccw)
  • 1x HCF7P 25mw VTX/700tvl camera AIO
  • 1x 3S 11.4v 300mah 30C/60C battery
  • 1x Propeller disassemble tool
  • 1x Screwdriver

Recommended Batteries:

  • GNB 2S 350 HV
  • GNB 2S 300 HV
  • GNB 3S 300HV

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