Application / Suitable Priority for 3D Airplane, Large Jet & 1/5、1/8th Buggy, Truggy, Crawler, Monster & Helicopter. (EP / Gas / Nitro) Specifications Torque At 6.0V 35.5 kg-cm / 493.1 oz-in Torque At 7.4V 43.8 kg-cm / 608.4 oz-in Torque At 8.4V 49.7 kg-cm / 690.3 oz-in Speed At 6.0V 0.13 sec / 60° Speed At 7.4V 0.11 sec / 60° Speed At 8.4V 0.10 sec / 60° Protection Mechanism Soft Start Protection Soft start to a 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 degrees C (185 degrees F), drive the protection mode and down 75 degrees C (167 degrees F) return to normal mode. Lose Control Protection When losing the transmitter signal, that servo will be back to the neutral position immediately and lock. 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 Resolution ( 4096 Steps ) Frequency:Up to 333Hz / Neutral:1500us or 1520us Dead Band Width 0.001ms ( Default:1us) Mechanical Specifications Ball Bearing Dual Gear Titanium Alloy Gears Motor High Premium Brushless Motor Horn / Gear Spline 25 Teeth ( Same as F-Type ) Physical Specifications Dimension (mm) 40.5 x 20 x 39 mm / 1.59 x 0.79 x 1.54 in Weight (gram) 78.5 ± 1 grams / 2.77 oz Product Picture / Dimension Sketch