HappyModel BNF Crux35 HD 3.5" Quad w/ Caddx Vista & Polar Nano - Choose RX

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This HappyModel BNF Crux35 HD 3.5" Quad features the Caddx Polar Nano camera.

The Crux 35 HD is an ultra-lightweight 3.5Inch FPV freestyle and racing drone, the weight of the whole drone is only 87g for the analog version and 108g for the digital HD version. The Crux35 series drone use Happymodel's EX1404 high-efficiency motor and HQPROP 3.5-inch three-blade propeller to ensure the largest thrust-to-weight ratio under the most efficient premise, which can bring you a smooth Freestyle flying experience.

Check out our other pre-built quads, as well as the rest of our HappyModel selection!


  • Weight: 108g
  • Recommended Battery: 4S 750-1100mAH
  • Propellor Size: 3.5"

HappyModel Crazyf411 20A AIO FC

  • Input Voltage: 2-4S LiPo
  • MCU: STM32F411CEU6
  • Gyro: MPU-6000
  • OSD: Yes
  • UARTs: 2 Sets
  • ESC Connections: No
  • Firmware: MATEKF411RX
  • BEC: 5V 1.5A
  • Current Sensor: Yes
  • Buzzer: Yes
  • Barometer: No
  • Black Box: No
  • DJI Compatible: Yes
  • Stack Size: 25x25
  • Dimensions: 28.5x28.5mm
  • Weight: 6.3g

HappyModel EX1404 3500KV Motor

  • Kv: 3500Kv
  • Input Voltage: 3-4S LiPo
  • Configuration: 9N12P
  • Motor Dimensions: Φ17.8mm x 17.6mm
  • Stator Dimensions: Φ14mm x 4mm
  • Shaft Diameter: 1.5mm
  • Mounting Pattern: Φ9mm
  • Weight: 8.7g

Caddx Vista w/ Polar Nano

  • Weight: 24g
  • Vista Dimensions: 30x29x13mm
  • Camera Dimensions: 14x14x15.8mm
  • Operating Frequency: 5.725-5.850GHz
  • Transmitter Power(EIRP): FCC/SRRC/MIC: <30dBm, CE: <14dBm
  • Min. Latency (end-to-end): 720p 60fps: 32ms
  • Max. Transmission Distance: FCC/SRRC: 4km, CE: 0.7km
  • I/O Interface: USB-C,IPEX,3-in-1 Port
  • Supported Flight Control System: F3,F4,F7
  • Operating Temperature Range: 32° to 104° F (0℃ ~40℃)
  • Input Power: 7.4-26.4V
  • Power output: 25mW/200mW/500mW/700mW
  • Hardware included:Vista/Polar nano/Coaxial cable/Antenna
  • Goggles: work with DJI goggles
  • Camera: Sensor: 1/1.8" starlight sensor
  • FOV: 162°[D],138°[H],75°[V]


  • 1x HappyModel BNF Crux35 HD 3.5" Quad w/ Caddx Vista & Polar Nano