S
PECIFICATIONS
R
ECOMMENDED
S
ERVOS
.91 Size Helicopters
Futaba S9254 Digital Servo Heli: FUTM0224
(280Hz/1520μS)
Futaba S9256 Digital Hi Speed: FUTM0226
(560Hz/760μS)
Futaba BLS251 Brushless Heli Servo: FUTM0521
(560Hz/760μS)
R
EPLACEMENT &
O
PTIONAL
I
TEMS
Futaba PC Interface CIU-2 for GY701: FUTM0951
FSH64 GY520 Extension 200 mm (2): FUTM4664
FSH65 GY520 Extension 350 mm (2): FUTM4665
FSH66 GY520 Extension 55 mm (2): FUTM4666
FSH67 GY520 Extension 80 mm (2): FUTM4667
FSH68 GY520 Extension 130 mm (2): FUTM4668
FSH69 GY520 Mounting Pad: FUTM4669
2x22x22 mm (10)
FSH70 GY520 Mounting Pad: FUTM4670
3x22x22 mm (10)
FSH71 GY520 Shield Plate: FUTM4671
1x22x22 mm (3)
Width (Controller): 1.14in [29mm]
(Gyro sensor): 0.83in [21mm]
(Speed sensor): 0.30in [7.5mm]
Length (Controller): 1.73in [44mm]
(Gyro sensor): 0.83in [21mm]
(Speed sensor): 0.63in [16mm]
Height (Controller): 0.55in [14mm]
(Gyro sensor): 0.31in [8mm]
(Speed sensor): 0.39in [10mm]
Weight (Controller): 0.459oz [13g]
(Gyro sensor): 0.353oz [10g]
(Speed sensor): 0.141oz [4g]
Maximum* Operating Voltage
: 3.8V to 8.4V DC
Current Drain: 80mA
Selectable Servo Frame: 70Hz, 280Hz and
570Hz(Gyro only) Rate
Center Pulse Width:
1520µS (70Hz & 280Hz
Frame Rate)
Flight Mode: User selectable F3C
or 3D (Gyro)
Control Resolution: 0.1Hz (6rpm)
(Engine speed)
Speed stability accuracy: 1%
Speed Control Range: 1,000-3,000rpm
(Rotor speed)
Operating Temperature: 14°F to 113°F
(-10°C to +45°C)
Control System: Digital advanced control
Sensor: Vibrating structure gyro/
Magnetic sensor
(Gyro/Governor)
Angular Velocity Range: ±1,200 Degrees Per
Second (Gyro)
* The maximum operating voltage listed only applies to
the GY701. Always verify that your receiver, servos,
tail rotor servo, switch and any other electronic com-
ponents used in your installation are capable of operat-
ing at the voltage you plan to use.
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