This is the ElectriFly Silver Series 80 amp Hi Volt Brushless Electronic Speed Control. Capable of handling high voltages on the input and delivering 80 amps (96A surges) of continuous current on the output, the SS-80 is designed for very large high-powered electric airplanes. FEATURES: NiCd, NiMH and LiPo compatible Handles up to 50V on input and the pulse width modulated output delivers 80A continuous current (96A surge current for short durations) Safe-Start function prevents accidental propeller rotation while on the ground Very little programming required for ease of use and no-hassle flying fun, an optional Programming Card (GPMM1895) allows adjustment of brake (ON or OFF), motor rotation (forward or reverse), timing angle (12° or 20°), operating frequency (8kHz or 16kHz), or custom setting of low battery cutoff voltage (12.4 - 37.0V) Opto-isolated radio control (no BEC) for smooth, precise trouble-free Rf signals Fully proportional forward with on/off brake Audible set-up tones 8.5kHz switching frequency for smooth throttle response, good run time and cool operation Mounting system allows for easy mounting and good airflow for cooling 180 Day Limited Warranty beginning at date of purchase (USA & Canada Only) INCLUDES: ElectriFly Silver Series 80 amp ESC with Pre-Installed Universal Radio Connector, 4" (10cm) 10AWG silicone insulated battery wires, 6" (15cm) 12AWG silicone insulated motor wires, Deans Ultra Battery Connector, 6mm Female Bullet Motor Connectors REQUIRES: Installing in airplane and connecting to receiver, battery and motor SPECS: Input Voltage: 14-32 NiCd/MH cells, 4-12 LiPo cells (12.4-50V) BEC: No BEC circuit, opto-isolated Output Current: 80A continuous max., 96A surge max. Max. Output Power: 4000 watts ON-Resistance: 0.002 ohms Thermal Cutoff: 230°F (110°C) Dimensions: 2.4 x 2.6 x 0.7 in. (60 x 67 x 18mm) Weight: 5.1oz. (145g, w/Deans Ultra plug, Rx plug, three 6mm bullets) Manual Setup Settings w/Optional Programming Card Brake: On or Off On or Off Rotation Direction: Forward Only Forward or Reverse Timing Angle: 12° Only 12° or 20° Operating Frequency: 8kHz Only 8kHz or 16kHz Low Voltage Cutoff: Starting battery voltage x 0.74 12.4 - 37.0V adjustable COMMENTS: The "Silver Series" line of brushless electronic speed controls include many built-in safety features. One such feature COULD POSSIBLY CAUSE THE BRUSHLESS MOTOR TO STOP ROTATING when the transmitter"s stick is at an extremely low position and/or if rotation of the brushless motor is impeded or obstructed in some way. This is NORMAL, as the ESC is detecting that a problem possibly exists with the motor and/or speed control. Rotation of the motor is stopped to protect the speed control from possible damage. WARNING!! If the ESC and motor have already been armed and the motor has been rotating normally, yet after moving the throttle stick to near minimum the motor suddenly ceases to rotate normally even if the throttle stick is advanced above minimum throttle, DO NOT PLACE YOUR HANDS NEAR THE PROPELLER!! FAILURE TO OBEY THIS WARNING COULD RESULT IN PERSONAL INJURY!! From this point, moving the throttle stick up - even to full throttle might not cause the motor to rotate BUT THE MOTOR IS STILL ARMED AND ACTIVE DURING THIS TIME!! To regain control of the motor, move the throttle stick to absolute minimum throttle position and then advance the throttle stick upwards once again. Alternatively, you can disconnect the battery from the ESC, then re-connect the power source and re-arm the system. NEVER get near the propeller if the speed control is connected to input power! ALWAYS make sure the throttle stick is at minimum position before attempting to disconnect the battery from the speed control! ElectriFly is not responsible for incidental damage or personal injury as a result of misuse of this product. jxs 9/10/09 ir/jxs