Why Choose the F41135 Stack?

The F41135 Stack combines an advanced flight controller and a high-current 4in1 ESC into a single, compact unit designed for racing and freestyle quadcopters. At its core, the FC is powered by the STM32F411 processor, delivering smooth PID loops and rapid response times that competitive pilots demand.

This turn-key solution balances performance, reliability, and ease of use—perfect whether you’re building a new racer or upgrading an existing platform.

Advanced Sensor Integration

• BMI270 Gyroscope — High-speed motion sensing with exceptional sample rates that reduce gyro noise for a cleaner feel in both acro and angle modes
• DPS310 Barometer — Accurate altitude hold even in changing weather conditions; essential for modes like altitude hold, return-to-home, and waypoint navigation
• 2MB Flash Memory — Extensive flight log storage for detailed tuning analysis and performance optimization

Powerful 35A 4in1 ESC

The 2035S ESC delivers a continuous 35A with a burst rating of 40A across all four motor outputs. Operating safely on 3-6S LiPo batteries, it’s compatible with everything from efficient 3S cruising to extreme 6S thrust.

Supported Protocols

This flexibility lets you match ESC performance with your preferred flight controller firmware—whether you use Betaflight, INAV, or other platforms.

Integrated Features

Benefits of the All-in-One Design

• Reduced Wiring Complexity — Eliminates extra connectors and ensures consistent signal timing across all motors for precise control
• Optimized Power Distribution — FC and ESC share the same PCB, improving throttle response under rapid maneuver loads
• Minimal Soldering Required — Simple 2-wire UART connectors for GPS, receiver and other peripherals
• Lightweight Solution — Under 10g total weight keeps your build agile
• Pilot Awareness — Integrated OSD displays battery voltage and RSSI without extra hardware