With its low profile design and strong standing torque, the HS77BB is a great choice for wing or tail mounting in aircrafts up to 1.20 size. Submarines, boats, cars and trucks can also benefit from this servo’s strength and compact size.

HS-77BB Servo Specifications

Performance Specifications

Operating Voltage Range (Volts DC) 4.8V ~ 6.0V

Speed (Second @ 60°) 0.18 ~ 0.14

Maximum Torque Range kg. / cm. 4.4 ~ 5.5

Current Draw at Idle 8 mA

No Load Operating Current Draw 250 mA

Stall Current Draw 800 mA

Dead Band Width 8 µs

Physical Specifications

Dimensions (mm) 44.0 x 23.0 x 25.0

Weight (Gram) 35.0

Circuit Type HT7003 Analog SMT

Motor Type 3 Pole Metal Brush Ferrite

Gear Material Nylon

Bearing Type Top Ball Bearing

Output Shaft (type / Ømm) Standard 24

Case Material Plastic

Dust / Water Resistance Splash Proof

Connector Gauge (AWG) / Strand Count 25 / 40

Radio Control Applications

Sport Plane 12 - 15 lbs.

3D Performance 12 - 15 lbs.

Scale 12 - 15 lbs.