Futaba FUSAG300 Micro Servo for F3K Gliders, Slim SBUS2 Sailplane Servo  [FUSAG300]

FUTABA S-AG300 F3K GLIDER SILM SERVO SBUS2 (8MM/10.8G/0.065SEC/2.5KG@7.4V)
Price:
CAD$44.34
Brand:
Futaba
Model:
FUSAG300
GTIN:
4513886034381
Condition:
Brand New
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Slim SBUS2 Micro Servo for F3K Gliders

The Futaba FUSAG300 is a micro-size servo intended for F3K style hand-launched and thermal gliders, featuring SBUS2 control compatibility and a slim 8mm case profile. Its published metrics include a lightweight 10.8g mass, rapid transit of 0.065 sec, and rated torque of 2.5kg at 7.4V, values relevant when matching servos to control surface size and linkage geometry.

This servo's SBUS2 interface allows simplified wiring and position feedback on compatible Futaba receivers and flight controllers that support the protocol. In glider builds the slim case helps minimise drag and fit tight fuselage trays; pay attention to tray depth and servo mounting tabs when replacing stock units.

Installation notes: check spline compatibility with your control horns, confirm the required travel and centre before final gluing, and verify that the 8mm case thickness provides adequate clearance for pushrods and servo covers. For tuning, use the receiver or transmitter endpoint and subtrim adjustments to set neutral and end points, and prefer soft-linkage geometry where possible to reduce flutter risk on thin control surfaces.

Specifications

  • Item: Micro servo for gliders
  • Model Number: FUSAG300
  • Weight: 10.8g
  • Case thickness: 8mm
  • Speed: 0.065 sec
  • Torque: 2.5kg @ 7.4V
  • Interface: SBUS2
  • Material: Not specified
  • Compatibility: F3K class gliders and similar lightweight sailplanes

This servo suits pilots who need a compact SBUS2-capable actuator for lightweight sailplanes where slim profile and quick response are priorities; confirm mechanical fit and control geometry before final installation.

Which receivers will let me use the SBUS2 features on this servo?

The FUSAG300 uses the SBUS2 protocol, so you need a receiver or flight controller that explicitly supports SBUS2 to access digital bus features and telemetry. Without SBUS2 support you will not get the bus feedback functions.

What should I check for mounting in a narrow F3K fuselage?

Measure tray depth and tab positions against the 8mm case thickness, check horn spline fit, and ensure pushrod and cover clearance before fixing the servo in place.

Is the torque rating valid on lower voltage setups?

The published torque is measured at 7.4V; if you run the servo at lower voltages expect reduced torque and a modest change in transit time.

Best practice for setting endpoints and neutral?

First set the mechanical neutral, then use transmitter subtrim and endpoint adjustments to eliminate binding and to keep control throws within recommended ranges for the airframe.

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