Futaba S3155 Precision HS Servo for Gliders  [S3155]

Futaba S3155 Digital HS Slim Servo
Price:
£40.47
Brand:
Futaba
Model:
S3155
Condition:
Brand New
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Precision HS Servo for Wing Installations

The Futaba S3155 Digital HS Wing Servo is aimed at pilots using it for wing-mounted control on gliders, electric planes and small jets. Its compact casing lets builders fit the unit into narrow wing channels without sacrificing responsiveness.

Durable Metal Gears and Included Horns

While this servo provides dust and water resistance it is not fully waterproof. The unit uses metal gears identified as FUTM3331 for reliable wear resistance. Multiple horns are supplied, including a fitted 1" (25.4mm) 4-arm horn, a 1.5" (39mm) 4-arm horn, a 1.75" (45mm) straight horn and a 1.4" (35mm) round horn to cover a variety of throw and linkage needs.

Specifications

  • Speed: 0.16 sec/60° @ 4.8V, 0.13 sec/60° @ 6V
  • Torque: 28 oz-in @ 4.8V (2.0 kg/cm)
  • Dimensions: 1.2 x 0.4 x 1.1" (30 x 11 x 29mm)
  • Weight: 0.72 oz (20g)
  • Lead Length: 6" (154mm)

The Futaba S3155 is well suited to pilots who want a compact, fast servo with solid metal gears for dependable wing control.

Will this servo handle rapid aileron inputs?

Yes. The high-speed specs indicate quick 60 degree moves, making it suitable for rapid aileron work on gliders and EDF craft when installed correctly.

How should I protect the servo from moisture?

Use servo boots or seal the compartment if the model may encounter heavy spray. Avoid direct exposure to water since the unit is not rated as waterproof.

What maintenance keeps the servo reliable?

Check linkages for free movement, inspect horn screws for tightness and ensure the connector and lead are secure. Replace worn horns or connectors to prevent slop and uneven loading on gears.

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