DS8911HV Ultra Torque Servo

JR's DS8911HV High Voltage Ultra Torque Servo

The 8911HV servo is the perfect option for pilots who want the outstanding performance of JR's legendary servos without the high cost. The 8911 provides impressive torque for giant-scale applications and is covered by JR's outstanding 3-year limited warranty.

Battery chemistries such as LiPo, LiIon, and LiFe have become very popular within the RC community. They are the standard for powering electric motors and have also gained popularity as receiver battery packs. The issue is the output voltage of these batteries is higher then the previous standard 4 - and 5-cell NiCd and NiMH packs, 4.8V and 6V respectively. The higher voltage is not an issue with the receivers but can be for the servos. Many servos will not operate at these higher voltages for very long before burning out the motors or electronics.

To get around this issue modelers have had to use a regulator to drop the voltage to an acceptable operating range for their servos, usually around 5 to 6 volts. The addition of a regulator adds a component that, should it fail, can cause the loss of a model.

JR's HV servos are designed with motors and electronics that operate off the direct voltage of a 2-cell LiPo, LiIon, or LiFe receiver battery pack (6.6V to 7.4V nominal voltage). This eliminates the need for a regulator and lowers the chance for a power failure that can cause a catastrophic failure of your model. Also note that the HV servo specs are shown at the higher voltage (7.4V 2S LiPo) but will still operate on a standard 5-cell 6V NiCd, Ni MH battery with a reduction in performance of approximately 10% in speed and torque.

DS8911HV Ultra Torque Servo Highlights

• Designed for high voltage native 2S Li-Po operation
• Digital precision for increased accuracy and performance
• Provides high torque for large aircraft in a standard-size servo package
• Metal gears provide longer life cycle and a higher level of durability

DS8911HV Ultra Torque Servo Specs

• Size Category: Standard
• Type: Digital
• Application: Giant-Scale aircraft
• Torque: 470 oz-in (2S Li-Po)
• Speed: .12 sec/60 degrees (2S Li-Po battery)
• Length: 1.58 in
• Width: 0.82 in
• Height: 1.56 in
• Weight: 2.5 oz
• Bushing Or Bearing: Bearing
• Bearing: Dual
• Motor Type: Coreless
• Connector Type: JR
• Gear Type: Metal
• Gear Material: SuperSteel™
• Voltage: 7.4V (2S Li-Po battery)
• Deadband: Less than .001ms

Technical Specifications: DS8911HV Ultra Torque Servo Specs Size Category: Standard Type: Digital Application: Giant-Scale aircraft Torque: 470 oz-in (2S Li-Po) Speed: .12 sec/60 degrees (2S Li-Po battery) Length: 1.58 in Width: 0.82 in Height: 1.56 in Weight: 2.5 oz Bushing Or Bearing: Bearing Bearing: Dual Motor Type: Coreless Connector Type: JR Gear Type: Metal Gear Material: SuperSteel™ Voltage: 7.4V (2S Li-Po battery) Deadband: Less than .001ms

For technical support or warranty claims on this product, please contact Horizon Hobby at: (800) 338-4639