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Home > Rc Helicopters > Gyros > Futaba > 239

Futaba 239 Gyro GY701 + Governor + Servo BLS251 For RC Model Heli

Futaba 239 Gyro GY701 + Governor + Servo BLS251 For RC Model HeliManufacturerFutaba
Product CodeFutaba 239

Futaba 239 Gyro GY701 + Governor + Servo BLS251 For RC Model Heli

CategoryHome > Rc Helicopters > Gyros
Date Added11/12/2010
AvailabilitySufficientAdd to Cart
Sales Price (incl. VAT)€ 36930.00

Futaba 239 Gyro GY701 + Governor + Servo BLS251 For RC Model Heli

Product Description

Sophisticated simplicity. Beginner-friendly – competition-ready.

The Futaba GY701 combines a gyro and governor in one unit, representing a quantum leap forward in technology. Processing rates are incredible, resulting in response rates that are even more amazing. Basic and Expert menus make it easy for novices and pros 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. When combined with the Governor, you have a system that's optimized for even the most extreme helicopter competitions.

Gyro/Governor Features:

  • Small and lightweight — only 1.7 in. x 1.2 in., and weighs less than 1/2 ounce
  • S.Bus capable with a single cable connection to the receiver
  • Free firmware and software, using the CIU-2 PC Interface (sold separately)
  • Easy for anyone to program. Features both Basic and Expert menus
  • Organic Light Emitting Display (OLED) for easy viewing indoors or out
  • Works with analog or digital servos
  • 3-color LED to indicate gyro status

Gyro Features:

  • Utilizes MEMS (Micro Electro Mechanical System) technology
  • Ultra high-speed processing
  • Advanced PID control algorithm
  • Smooth, consistent pirouette rate and yaw control
  • Patented, internal “Feed Forward” mixing through S.Bus means no latency and no tail offset (available in S.Bus mode only)
  • 3D/F3C mode-selectable
  • Sensor features an aluminum alloy case and 3-color mode indicator LED

Governor Features:

  • RPM range of 1000-3000
  • Mode selectable for governor or rev limiter
  • Clutch-mounted sensor or optional back plate mount for O.S.® .91, .55 and .50 engines


  • Operation range: +/- 1,200° per second
  • Sensor dimensions: 0.8 in x 0.8 in x 0.3 in (21 mm x 21 mm x 8 mm)
  • Sensor weight: 0.3 oz (9.4 g)
  • Controller dimensions: 1.7 in x 1.2 in x 0.5 in (44 mm x 30 mm x 12 mm)
  • Controller weight: 0.44 oz (12.5 g)

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)

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!

Item Included:

  • 1X GY701 Gyro Sensor
  • 1X Governor Sensor
  • 1X Amplifier
  • 1X BLS251 Servo
  • 1X English Manual

Futaba 239 Gyro GY701 + Governor + Servo BLS251 For RC Model Heli
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