iFlight Blitz F745 Stack (E55 4-in-1 ESC)

The iFlight Blitz F745 Stack pairs a high-performance STM32F745 flight controller with a robust 55A 4-in-1 ESC. Built for 5-inch freestyle quads, 7-inch long-range rigs, and heavy-duty cinelifters, this full-size stack provides abundant processing overhead and reliable current delivery for demanding 6S power trains.

Key features

• STM32F745 MCU provides extensive processing headroom and multiple hardware UARTs for complex Betaflight or INAV setups.
• Plug-and-play digital HD VTX connector enables clean, solder-free integration with DJI O3, Caddx Vista, and Walksnail systems.
• 55A continuous and 65A burst current ratings effortlessly handle aggressive throttle inputs and heavier motor-propeller combinations.
• Built-in 32MB Blackbox flash memory offers ample storage for detailed PID tuning, vibration analysis, and flight logging.

Specifications

• Flight Controller MCU: STM32F745
• ESC Current: 55A continuous, 65A burst
• Input Voltage: 2-6S LiPo
• ESC Firmware: BLHeli_32
• Blackbox: 32MB Flash
• Mounting Pattern: 30.5x30.5mm
• Supported Firmware: Betaflight, INAV

With its generous I/O flexibility and substantial thermal headroom, the Blitz F745 stack is a highly capable core for larger multirotors. Verify that your frame supports standard 30.5x30.5mm mounting and has sufficient vertical clearance before installation.