GY701 Gyro Governer,BLS251

Dhs. 2,230.00
This is the Futaba GY701 Gyro/Governor Combo, with an included Futaba BLS251 Heli Rudder Servo. The Futaba GY701 combines a gyro and governor in one unit – a quantum leap forward in technology – with ultra high-speed processing rates that make it the most sophisticated system on the market. Basic and Expert menus make it easy for novices and pros alike to enjoy latency-free performance and virtually instantaneous set-ups. The GY701’s OLED (Organic Light Emitting Display) is easy to read indoors or out. Add the Governor and the system is optimized for even the most extreme helicopter competitions!

Designed specifically for helicopter rudder operation the BLS251 Brushless Digital Heli Rudder Servo is equipped with a Brushless motor. This results in 30% faster response times and smoother operation than servo's with a typical Brushed motor. It also lasts longer and operates at a lower temperature than a Brushed motor servo and uses the same power consumption and centering as a Digital servo equipped with a Brushed motor!


  • GY701 Gyro-
    • Utilizes MEMS (Micro ElectroMechanical System) technology to ensure ultra high-speed processing
    • S.Bus capable, a single cable connection to receiver
    • Internal mixing through S.Bus for no latency or tail offset
    • Sensor has aluminum alloy case and 2-color mode indicator LED
    • 3D and F3C mode selectable
  • Governor-
    • Organic Light Emitting Display (OLED) 128 x 36 dot graphical display for easy outdoor viewing in bright sunlight
    • Advanced PID control algorithm and consistent pirouette rate and yaw control
    • Mode selectable for governor or rev limiter
    • Easy for anyone to program with both Basic and Expert menus
    • Updatable firmware and software using the CIU-2 PC Interface-not included, order FUTM0951
    • Small and lightweight – only 1.7″ x 1.2″ and weighs less than 1/2 ounce (Controller weight)
    • S.Bus capable – a single cable connection to the receiver
    • Updated firmware and software using CIU-2
    • Easy for anyone to program with both Basic and Expert menus
    • Compatible with analog or digital servos


  • (1) Futaba GY701 Governor & Gyro w/Instruction Manual
  • (3) Sensor Mounting Stays
  • (1) Adjustment Screwdriver
  • (1) Governor Sensor
  • (2) Magnets
  • (1) Sensor
  • TX and Governor Labels
  • Red and Black Extensions

Gyro Specifications:

  • Size: 0.83x0.83x0.31″ (21x21x8mm)
  • Weight: 0.33oz (9.4g)
  • Operation Range: +/1,200 deg/sec
  • Supported Servo Types:
  • Digital 1520µS, Digital 760µS

Governor Specifications:

  • RPM Range: 1,000 – 3,000 RPM
  • Length: 1.73″ (44mm)
  • Width: 1.14″ (29mm)
  • Height: 0.47″ (12mm)
  • Weight: 0.459oz (13g)

System Specifications:

  • Maximum Operating Voltage: 3.8 – 8.4V DC
  • Current Drain: 80mA
  • Selectable Servo Frame: 70Hz, 280Hz and 570Hz (gyro only) rate
  • Flight Mode: User selectable F3C or 3D (gyro)
  • Center Pulse Width: 1520µS (70Hz and 280Hz frame rate)
  • Control Resolution: 0.1Hz (6RPM) engine speed
  • Speed Stability Accuracy: 1%
  • Speed Control Range: 1,000 – 3,000 RPM rotor speed
  • Operating Temperature: 14° – 113°F (-10° – 45°C)
  • Control System: Digital Advanced Control
  • Sensor: Vibrating structure gyro/magnetic sensor (gyro/governor)
  • Angular Velocity Range: +-1,200° per second

BLS251 Specifications:

  • Torque @ 4.8V: 53 oz-in (3.8 kg-cm)
  • Speed @ 4.8V: 0.06 sec
  • Dimensions: 1.6x0.8x1.5" (40x20x36.8mm)
  • Weight: 2.1oz (59.5g)