The Savox SV-1271SG Plus High Torque, High Voltage Digital Servo is one of the best overall servos you can find. Fast and high torque, the SV1271SG servo is applicable for numerous tasks.

"Plus" models feature Soft Start and Sanwa SSR Compatibility

Features:

• Super strong and precision made unique steel gears provide durability and survive heavy use.
• Capable of HV operation.
• Fast and high torque for numerous applications.
• Ideal for large scale aircraft, 1/8 off road, and other off road vehicles.
• Soft Start and Sanwa SSR Compatibility

Specifications:

• Torque @ 7.4v - 25.0kg/347.2oz-in
• Torque @ 8.4v - 35.0kg/486.1oz-in
• Speed @ 7.4v - 0.08 sec/60 deg
• Speed @ 8.4v - 0.07 sec/60 deg
• Dimensions L x W x H (mm): 40.3 x 20.2 x 37.2
• Weight: 63.0g

• Operating Temperature: 14° - 122°F (-10° - 50°C)
• Running Current (no load): 120mA @6.0V, 150mA @7.4V
• Stall Current (at locked): 4000mA @6.0V, 5000mA @7.4V
• Idle Current: 5mA @4.8V, 5mA @6.0V
• Wire Length: 200 ± 5mm
• Output Gear Spline: 25 Tooth
• Bearings: 2BB
• Operating Travel: 100° (1000 - 2000 µ second)
• Neutral Position: 1500 µ second
• Pulse Width Range: 800 - 2200 µ second
• Maximum Travel: Appx 130° (900 - 2100 µ second)
• Refresh Rate: 333 Hz
• Motor Type: Coreless

This in Taiwan based company is established at the market for many years and proves itself with servos for a fair price. The assortment contains all different fields of application from mini servos for helicopters to high end engines for bigger modells. Top pilots like Mirko Cesena trust in the reliability of these high quality servos.