HiTec HS-81 Standard Micro Analog Servo

The HS-81 servo from Hitec is a top-selling micro servo that comes in two options: resin or metal gears. It's a popular choice for smaller airplanes, helicopters, boats, cars, and trucks, as it provides a fine balance between speed and torque.

Features:

• Top-selling micro servo
• Strong three-pole ferrite motor
• Durable nylon gears

Accessories:

• Nylon Gear Set | Link |
• Plastic Case Set | Link |
• Applicable Horns

HS-81 Servo Specifications: Performance Specifications:

• Operating Voltage Range (Volts DC): 4.8V ~ 6.0V
• Speed (Second @ 60°): 0.11 ~ 0.09
• Maximum Torque Range oz. / in.: 36 ~ 42
• Maximum Torque Range kg. / cm.: 2.6 ~ 3.0
• Current Draw at Idle: 8.8 mA
• No Load Operating Current Draw: 280 mA
• Stall Current Draw: 1,500 mA
• Dead Band Width: 8 µs

Physical Specifications:

• Dimensions (Inches): 1.17 x 0.47 x 1.16
• Dimensions (Metric): 29.8 x 12.0 x 29.6
• Weight (Ounces): 0.58
• Weight (Gram): 16.6
• Circuit Type: HT7003 Analog SMT
• Motor Type: 3 Pole Metal Brush Ferrite
• Gear Material: Nylon
• Bearing Type: None
• Output Shaft (type / Ømm): Standard 24
• Case Material: Plastic
• Dust / Water Resistance: N / A
• Connector Gauge (AWG) / Strand Count: 28 / 20

Radio Control Applications:

• Parkflyer: < 50 oz.
• Sport Plane: 42 - 50 oz.
• Sailplane: < 2 meter / DLG
• 3D Performance: N / A
• Scale: N / A
• Electric Helicopter: 400 - 500mm
• Gas Helicopter: 30 - 39 Class
• On Road: N / A
• Monster Truck: N / A
• Buggies: N / A
• Truggies: N / A
• Short Course / Truck: N / A
• Crawlers: N / A
• Sail Boat: N / A
• Power Boat: N / A