Holybro Kakute H743 Wing Flight Controller

Stop trying to cram a quad FC into a fixed-wing craft and praying to the prop gods. The Holybro Kakute H743 Wing is a purpose-built fixed wing flight controller and VTOL flight controller designed specifically for airframes that need actual servo outputs, not compromises. Powered by a screaming 480MHz STM32H743 MCU paired with a low-noise ICM-42688-P IMU, this ArduPilot wing FC handles demanding INAV FC builds without sweating. After ten years of fixing dodgy bench setups in the UK, we can safely say this board ensures your wing stays in the air rather than turning into an expensive lawn dart.

Highlights

• STM32H743 MCU: 480 MHz processing speed with 1MB RAM for real-time telemetry and complex navigation.
• Dual Camera Switch: Effortlessly toggle between two onboard video feeds directly from your transmitter.
• High-Current Servo BEC: Dedicated Vx rail outputting 6V/8V at 6A continuous to drive heavy-duty servos.
• Onboard Pit Switch: Remotely cut power to your VTX via 9V/12V switch while configuring on the bench.
• Plug-and-Play Expansion: Dedicated ports for CAN Bus, I2C, GPS, and an external USB Type-C extender.

Why You Want It

Most flight controllers force you to solder an ungodly mess of external BECs and wire splitters just to run a couple of high-torque servos and a digital VTX. The Kakute H743 Wing integrates a massive 6A adjustable servo BEC, dual camera switching, an external USB-C extender board, and an onboard pit switch to keep your VTX cool while bench testing. It is over-engineered so you spend less time fixing wiring loops and more time ripping low passes.

Specs

• MCU: STM32H743, 480 MHz, 1MB RAM, 2MB Flash
• IMU: ICM-42688P (SPI3)
• Barometer: BMP280 / SPA06 (I2C4)
• OSD: AT7456E (SPI2)
• Input Voltage: 10V to 36V (3S to 8S LiPo)
• Current Sensing: 90A continuous, 220A peak
• BEC Outputs: 5.15V/2A (FC/GPS), 6V-8V/6A (Servos), 9V-12V/2A (VTX/Camera), 3.3V/200mA
• Mounting Pattern: 25 x 25mm, M2 mounting holes
• Dimensions & Weight: 45 x 30 x 13.5 mm | 28g (including USB extender)
• Firmware Target: ArduPilot: KAKUTEH7-Wing | INAV: KAKUTEH7Wing

FAQ

Does this board support both ArduPilot and INAV?

Yes, it features full native support for ArduPilot (4.4 or newer) and INAV (6.1.1 or newer) out of the box.

How do I power high-voltage servos with this FC?

The onboard Vx BEC outputs 6V by default, but you can bridge the 8V jumper pad to supply up to 8V at 6A continuous power directly to high-voltage servos.

What is the purpose of the included USB extender board?

It routes the USB Type-C port and DFU boot button away from the main stack, letting you mount USB access cleanly on the outer skin of your airframe.

In the Box

• 1x Holybro Kakute H743-Wing FC Set (Main Board, Power Board, USB Extender)
• 1x 220uF 62V Electrolytic Capacitor
• 2x XT60 60mm Power Cables
• 3x 2.54mm DuPont Pin Sets
• 2x 15cm JST-GH 4Pin Cables (CAN & I2C)
• 1x 15cm JST-SH 6Pin Cable (USB Extender)

#FixedWing #FPV #FlightController #INAV #ArduPilot