Introducing the CRUX35: Ultra-Lightweight FPV Racing Drone
Meet the CRUX35/CRUX35 HD, an ultra-lightweight 3.5Inch FPV Freestyle FPV Racing Drone that is perfect for both beginners and experts. Weighing only 87g for the analog version and 108g for the digital HD version, this drone offers superior performance and agility in the air. The Crux35 series drone is equipped with Happymodel EX1404 high-efficiency motors and HQPROP 3.5-inch three-blade propellers to ensure maximum thrust-to-weight ratio while remaining energy-efficient. Flight enthusiasts will especially appreciate the HD version's CADDXFPV Nebula and Vista HD image transmission system, or the analog version's CADDXFPV Ant ant camera.
Features:
- Ultra-lightweight 3.5-inch BNF FPV Freestyle Drone
 
- HD video transmission and analog video transmission options
 
- Integrated ExpressLRS SPI receiver or Frsky SPI D8/D16 receiver
 
- High efficiency EX1404 power system
 
- Can be equipped with Naked Gopro or SMO4K
 
- Supports 3-4S battery (4S 750mah battery recommended, maximum support 4S 1100mah)
 
Specifications:
Please refer to the Manual of ELRS Version and Frsky Version for more information.
Brand:
Model:
- Crux35 Analog / Crux35 HD
 
Wheelbase:
Weight:
Size:
- 130mmx130mmx45mm (without propellers)
 
Version Optional:
Receiver optional:
- UART ExpressLRS 2.4GHz (ELRS 2.4G RX) / SPI Frsky D8/D16 (S-FHSS compatible)
 
Camera option:
- HD version Nebula+Vista
 
- Analog version Ant+OVX303 VTX
 
Flying time:
- 9min~15min with 4S 750mah battery
 
For more information about the motor, propellers, flight controller, onboard 4in1 ESC, onboard UART ExpressLRS 2.4GHz Receiver, onboard SPI Frsky 2.4GHz receiver, Caddx FPV Digital HD Camera Nebula Nano Kit (Digital HD version), Caddx ANT 1200tvl camera (Analog version), OVX303 5.8Ghz VTX (Analog version), recommended batteries, and package inclusions, please refer to the original text above.
Product Specifications
Motor  | 
Mode: EX1404 KV options: KV3500 Configu-ration:9N12P Stator Diamter:14mm Stator Length:4mm Shaft Diameter: Φ1.5mm Motor Dimension(Dia.*Len):Φ15mm*15mm Weight:9g  | 
Propellers  | 
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 
(ELRS Version) 
 | 
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  | 
| 
 Flight controller 
(Frsky version) 
 | 
 Model: CrazybeeF411 FRSKY 
MCU:STM32F411CEU6 (100MHZ, 512K FLASH) Sensor: BMI270 or ICM42688P(SPI connection) Board size: 28.5 * 28.5MM Power supply: 2-4S battery input (DC 8V-17V) Built-in 20A(each) Blheli_S 4in1 ESC Dshot600 ready Built-in Frsky D8/D16 SPI receiverBuilt-in 2.4G Power Amplification Built-in Betaflight OSD(SPI Control) Built-in Current meter Built-in 5V 1.5A BEC Built-in voltage detectionFirmware target: MATEKF411RX 
 | 
Onboard 4in1 ESC  | 
 MCU upgraded to EFM8BB21 Power supply: 1S LiPo/LiPo HV  
Current: 5A continuous peak 6A (3 seconds) Support BLHeliSuite programmable Factory firmware: O_H_5_REV16_8.HEX Default protocol: DSHOT300 
 | 
| 
 Onboard UART ExpressLRS 2.4GHz Receiver 
(ELRS 2.4G Receiver version) 
 | 
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
   | 
Onboard SPI Frsky 2.4GHz receiver ( SPI Frsky Receiver Version)  | 
 SPI BUS receiver Frsky D8/D16/EU-LBT/, Futaba S-FHSS switchable on Betaflight   Channels: 8ch/16ch 
Dual antenna Failsafe support No ground interference ( Transmitter and receiver 1 m from the ground): 400m 
 | 
| 
 Caddx FPV Digital HD Camera Nebula Nano Kit 
(Digital HD version) 
 | 
 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 
 | 
| 
 Caddx ANT 1200tvl camera 
(Analog version) 
 | 
 Image Sensor: 1/3" CMOS Sensor 
Horizontal Resolution: 1200 TVL 
TV System: NTSC or PAL  
IMAGE: 16:9 or 4:3 
Synchronization: Internal 
Electronic Shutter: PAL: 1/50~100,000; NTSC: 1/60~100,000 
S/N Ratio : >52dB (AGC OFF) 
Video Output: CVBS 
Lens: 1.8mm 
Min. Illumination: 0.001Lux@F1.2 
Auto Gain Control: YES 
BLC: YES 
WDR: Global WDR 
DNR: 3D DNR 
Dimensions: 14*14mm(with bracket to 19*19mm) 
Wide Power Input: DC 3.7-18V 
Work Temperature: -20℃~+60℃ 
Weight: 2g (N.W.) 
 | 
| 
 OVX303 5.8Ghz VTX  
(Analog version) 
 | 
 Model: OVX303 
Frequency: 5.8G 40CH 
Transmitting Power: 0/RCE/25mw/100mw/300mw 
Power supply: DC 5V  
Current (5v): <650ma (300mw)  
Weight: 1.5gram without antenna 
 | 
Product Images










