
RedwingRC.com
PO Box 251, Lebanon, Illinois, 62254, United States
Monday - Friday 9 AM - 5 PM
| Availability | 70 in stock | |
| Weight | 0.51 lbs | |
| SKU | BBR-BLS-H71B | |
| Manufacturer | Blue Bird | |
| Market Price: | $168.99 | |
| Our Price: | $159.99 | |
BLS-H71B, High Voltage, Helical Gears, Brushless Motor, Digital--One of Blue Bird's most powerful servo, over 1000oz of torque!!
Smoother.Precision.More Reliable & More Efficiency
Helical Gears for supreme strength and precision.
★Soft Start Protection
★Over Voltage Protection
★Low Voltage Protection
★Locked Rotor Protection
★Temperature Protection
APPLICATION / SUITABLE
| Perfect for Giant Scale 3D Airplane, Jet & 1/5、1/8th Monster / Crawler / Off-road Car & Helicopter. |
ELECTRICAL SPECIFICATION (FUNCTION OF THE PERFORMANCE)
| Torque At 6.0V | 56.2 kg-cm / 780.6 oz-in |
| Torque At 7.4V | 66.7 kg-cm / 926.5 oz-in |
| Torque At 8.4V | 73.2 kg-cm / 1016.7 oz-in |
| Speed At 6.0V | 0.12 sec / 60° |
| Speed At 7.4V | 0.10 sec / 60° |
| Speed At 8.4V | 0.08 sec / 60° |
PROTECTION MECHANISM
| Soft Start Protection | Soft start to neutral position. |
| Over Voltage Protection | Over 9.0V drive the protection mode and 8.4V return to normal mode. |
| Low Voltage Protection | Lower than 4.0V, drive the protection mode and 4.5V return to normal mode. |
| Locked Rotor Protection | Stall in 5 sec, output torque goes down. |
| Temperature Protection | Overheat 85 degree C, drive the protection mode and down 75 degree C return to normal mode. |
POWER SUPPLY
| Operating Voltage Range | 4.5V ~ 8.5V ( 4 ~ 6 Cell Ni-MH or 2S Li-Poly / 2S Li-Fe) |
CONTROL SPECIFICATION
| Control System | Digital Controller / AD 12-Bits ( 4096 Steps ) Frequency:Up to 333Hz / Neutral:1500us or 1520us |
| Dead Band Width | 0.001ms ( 1us ) |
MECHANICAL SPECIFICATIONS
| Ball Bearing | Dual, Steel |
| Gear | All Steel Alloy Metal Helical Gears |
| Outside Case | Full One-Piece Aluminum CNC Casing |
| Motor | High Efficiency Japan Brushless Motor |
| Horn / Gear Spline | 25 Teeth ( Same as F-Type ) |
PHYSICAL SPECIFICATIONS
| Dimension (mm) | 40.5 x 21 x 43.9 mm / 1.59 x 0.83 x 1.72 in |
| Weight (gram) | 92.0 ± 1 grams / 3.24 oz |
| Product Picture / Dimension Sketch | ![]() |
Includes Servo and Aluminum Servo Arm