1. Unbeatable Power-to-Weight Ratio for Pure Freestyle Agility
Engineered for exhilarating performance, the Crux35 achieves an exceptional balance. Its ultra-lightweight frame—starting at just 87 grams—is powered by efficient EX1404 motors and HQProp 3.5-inch tri-blade propellers. This meticulous design delivers a thrilling thrust-to-weight ratio, offering the instant power and precise control needed for smooth dives, rolls, and tight gaps, transforming every flight into a seamless freestyle experience.

2. Extended Adventure with Up to 15-Minute Flight Time
Maximize your flight sessions. Optimized for 4S power (compatible with 3S), the Crux35 provides remarkably long endurance. With a recommended 4S 750mAh battery, pilots can enjoy 9 to 15 minutes of airtime, far exceeding typical micro drone durations. This allows for extended exploration, more practice runs, or capturing longer cinematic sequences without frequent landings.

3. Your Ready-to-Fly HD Cinewhoop Platform
Step directly into high-definition FPV filming. The Crux35 is specifically designed as a robust platform for lightweight HD cameras like the Naked GoPro and Caddx SMO 4K. Its sturdy 3.5-inch frame can handle the added payload while maintaining stable flight characteristics, letting you create stunning, smooth aerial footage right out of the box.

4. Flexible Connectivity with Dual SPI Receiver Options
Choose the link that fits your gear. We offer two integrated SPI receiver versions to match your existing radio setup: the cutting-edge, long-range SPI ExpressLRS 2.4GHz or the widely compatible SPI FrSky D8/D16 (which also works with S-FHSS protocols). This flexibility ensures a perfect bind-and-fly experience for pilots across different ecosystems.

5. Rugged, Pre-Tuned & Complete BNF Package
Get airborne with confidence and zero hassle. The Crux35 comes fully assembled as a true Bind-N-Fly (BNF) package. Every component, from the AIO flight controller to the motors and propellers, is professionally installed and pre-tuned. Simply bind it to your compatible transmitter, and you're ready for a maiden flight that feels dialed-in, saving you hours of complex build and setup time.

Crux35 3.5 Inch 4S Micro Freestyle FPV Racing Drone

Crux35 3.5-inch 4S Ultralight Racing Drone

The CRUX35 is an ultralight 3.5-inch FPV Freestyle racing drone, weighing only 87 grams and 108 grams respectively. This drone uses a Happymodel EX1404 high-efficiency motor, paired with an HQPROP 3.5-inch three-bladed propeller, ensuring maximum thrust-to-weight ratio while maintaining high efficiency, providing a smooth Freestyle experience.

Receiver options include SPI ExpressLRS and SPI Frsky (S-FHSS compatible)

Features:

Ultra-lightweight 3.5-inch hands-free FPV racing drone

Integrated ExpressLRS SPI receiver or Frsky SPI D8/D16 receiver

High-efficiency EX1404 power system

Compatible with Naked GoPro or SMO4K

Supports 3-4S batteries (4S 750mAh recommended, maximum 4S 1100mAh supported)

Specifications:

Product Name: Crux35

Wheelbase: 150mm

Weight: Crux35 87g

Dimensions: 130mm x 130mm x 45mm (excluding propellers)

Receiver Options: SPI ExpressLRS 2.4GHz

SPI Frsky D8/D16 (S-FHSS compatible)

Flight Duration: 9-15 minutes with a 4S 750mAh battery