Happymodel Crux35 HD ELRS V2 2.4GHz 4S Digital Runcam Link Nano Camera Micro Freestyle FPV Drone - BNF

Regular price $268.99 Sale

Availability: Available Unavailable

Product SKU: 102A-12501

Product Details

CRUX35 is an ultra-lightweight 3.5Inch FPV Freestyle FPV Racing Drone, the weight of the whole drone is only 108g for the digital HD version. The Crux35 drone uses Happymodel 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.

The HD version is equipped with Runcam Nano Camera and Link HD image transmission system.

The receiver version is the UART ExpressLRS ( SPI version is discontinued )

Recommended (Not Included): Battery 4S 14.8v 750mAh to maximum 1100mAh.

You can choose from our Compatible 4S Lipo Packs here

Check out The HappyModel Crux35 Frame and Parts Collection, all our Digital BNF Drones and the rest of our Happymodel Products!




  • Ultra-lightweight 3.5-inch BNF FPV Freestyle Drone
  • Integrated ExpressLRS UART receiver
  • High efficiency EX1404 power system
  • Can be equipped with Naked Gopro or SMO4K
  • Support 3-4S battery 4S 750mah battery is recommended, maximum support 4S 1100mah


    • Wheelbase: 150mm
    • Weight: Crux35 87gram
    • Size: 130mmx130mmx45mm(without propellers)
    • Receiver: UART ExpressLRS 2.4GHz
    • Caddx Nebula Nano Camera + Vista VTX
    • Flying time: 9min~15min 4s 750mah battery


    • Model: EX1404
    • KV options: KV3500
    • Configu-ration:9N12P
    • Stator Diamter:14mm
    • Stator Length:4mm
    • Shaft Diameter: Φ1.5mm
    • Motor Dimension(Dia.*Len):Φ15mm*15mm
    • Weight(g):9g


    • Propeller Diameter: 3.5 inch
    • Pitch : 2
    • Blades : 3
    • Material : Poly Carbonate
    • Weight : 1.5g
    • Hub Diameter : 10mm
    • Hub Thickness:4.7mm
    • Shaft :1.9/1.5/1.9mm
    • Adaptor Rings : NO

    Flight controller

    • (UART ELRS Version)
    • CrazybeeF411 ELRS
    • MCU:STM32F411CEU6 (100MHZ, 512K FLASH)
    • Sensor: ICM42688P or BMI270 (SPI Control)
    • Mount pattern: 25.5×25.5 M2
    • Size:32*32*5mm
    • Power supply: 2-4S Lipo battery
    • Built-in 20A Blheli_s ESC each
    • Built-in Betaflight OSD(SPI Control)
    • Built-in UART ExpressLRS 2.4GHz receiver
    • Built-in 5V 1.5A BEC
    • Flight controller firmware target: CRAZYBEEF4DX

    Onboard 4in1 ESC

    • MCU upgraded to EFM8BB21
    • Power supply: 2-4S LiPo/LiPo HVCurrent: 12A continuous peak 15A (3 seconds)
    • Support BLHeliSuite programmable
    • Factory firmware: F-H-40
    • Default protocol: DSHOT300

    Onboard UART ExpressLRS 2.4GHz Receiver

    • Packet Rate option: 25Hz/50Hz/150Hz/250Hz/500Hz
    • RF Frequency: 2.4GHzAntenna plug: IPEX
    • Telemetry output Power: <12dBm
    • Receiver protocol: CRSF
    • Default firmware version: ExpressLRS V3.0.1

    (Digital HD version)

    • Runcam Link Nano Kit
    • Weight(camera included]: 24g
    • Antenna: 2.3g
    • Dimensions: Vista Kit 30×29×13mm
    • Camera 14×14×21mm
    • Operating Frequency: 5.725-5.850GHz
    • Transmitter Power[EIRP]: FCC/SRRC/MIC:<30dBm
    • CE:<14dBm
    • Min.latencylend-to-end) 720p 60fps:32ms
    • Max.Transmission Distance FcC/SRRC: 4km
    • CE:0.7km
    • lnput Power: 7.4-26.4V
    • Power Output: 25mW/200mW/500mW/700mw
    • Goggles : Work with DJl goggles
    • Camera
    • Sensor: 1/3”CMOS
    • Lens:2.1mm,f/2.1
    • Shutter: Rolling
    • shutterFOV:142°(D);122°(H);75°(V)
    • LHCP antenna

    Package Includes:

    • 1 x Crux35 Frame
    • 1 x CrazyF411 ELRS FC with UART ELRS
    • 1 x Runcam Link HD Nano Camera
    • 4 x Happymodel EX1404 KV3500 brushless motor
    • 1 x HQProp T3.5X2X3Grey (4cw+4ccw)
    • 1 x Screw Driver
    • 1 x Buckle Velcro for battery