Overview

The DS821 servo is a powerful, accurate sport digital servo recommended for RC airplane applications up to 1.20-size. For helicopters, the DS821 operates best with 30-size glow models, and up to 50-size electric. Loads and vibration in larger models may cause premature failure of the servo resulting in damage or injury to property and persons.

Features

• Lower price point, but higher performance value
• New, longer-lasting plastic gear material
• Same size as standard servo
• Ball bearing-supported output shaft

Specifications

• Size Category: Standard
• Type: Digital
• Speed (sec/60°)
  • 4.8V: 0.19
  • 6.0V: 0.15
• Torque (Kg.cm)
  • 4.8V: 5.2
  • 6.0V: 6.3
• Length: 38mm
• Width: 18.7mm
• Height: 37mm
• Weight: 42.5g
• Bushing Or Bearing: Bearing
• Bearing: Single
• Motor Type: 3-pole ferrite
• Gear Type: Nylon
• Gear Material: Composite
• Application: Standard size-digital servo upgrade for sport pilots