FLYROTOR 280A HV Brushless ESC (6–14S) – 35A BEC, USB + Bluetooth, 700–800 Heli

Overview

Built for demanding 700–800 class helicopters and high-power HV systems.

The FLYROTOR 280A HV ESC is a high-power electronic speed controller built for 700–800 class RC helicopters and large-scale electric aircraft.

Powered by a 32-bit RISC-V MCU at 120MHz, this ESC is designed for extreme current handling, fast response, and stable governor performance in demanding setups.

With integrated USB-C and Bluetooth, full telemetry support, and a high-output SBEC, this is a serious option for high-voltage, high-power heli builds.

Key Features

• Supports 6S–14S LiPo / LiHV
• 280A continuous / 350A burst
• Integrated 10A / 35A peak SBEC
• Adjustable BEC output: 7.5V / 8.0V / 8.5V / 12V
• Built-in USB-C + Bluetooth (no external programmer needed)
• Internal governor + Rotorflight compatibility
• Energy recovery braking + synchronous rectification
• Full telemetry support:
  • CRSF
  • FrSky S.PORT
  • Futaba S.BUS2
  • FlySky iBUS2
  • KISS / HoTT (hardware dependent)
• Integrated flight data logging
• Heavy-duty aluminum case with 4510 cooling fan
• External motor temperature sensor support (NTC)

Performance & Control

• PWM frequency: 10–24kHz
• Throttle range: 1100–1940µs (default)
• Smooth soft-start + fast restart logic
• Adjustable governor P / I tuning
• Response tuning (1–15 scale)
• Advanced protection suite:
  • Low voltage protection
  • Overcurrent protection
  • MOSFET temp protection
  • Motor temp protection
  • Stall / desync protection
  • SBEC fault / overvoltage / backflow protection

Rotorflight / Modern Ecosystem Ready

Fully compatible with modern heli ecosystems:

• Rotorflight governor support
• Direct telemetry to FC or radio
• Configurable via:
  • Windows software
  • Android app (APK)
  • CLI (Win/Linux/macOS)
  • EdgeTX / ETHOS LUA scripts

Configuration & Firmware

Download tools, firmware, and apps:
https://github.com/BskyRui/flydragon-downloads

File Types:

• .fw → USB wired flashing
• .ota → Bluetooth OTA update

Specifications

• Model: FLYROTOR 280A HV
• Input Voltage: 6–14S LiPo
• Current: 280A continuous / 350A peak
• BEC Output: 7.5V / 8.0V / 8.5V / 12V
• BEC Current: 10A continuous / 35A peak
• Size: 85 × 50 × 32mm (44.5mm w/ fan)
• Weight: ~270g (290g w/ fan)
• Input Wire: 8AWG (longer 220mm leads)
• Cooling: Aluminum case + 4510 fan

Compatibility

• 700–800 class RC helicopters
• High-power electric fixed wing
• Rotorflight / Spirit / modern FBL systems

⚠️ Important Notes

• This is a high-power ESC — not beginner gear
• Requires proper setup (gearing, motor, battery, cooling)
• Improper use can cause damage or injury
• Follow manufacturer guidelines — use at your own risk