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GraysonHobby 70Amp Advanced Brushless ESC - No On Board BEC



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Quick Overview

GraysonHobby 70Amp Advanced Brushless ESC - Airplane Edition - OPTO

70 Amp Brushless Speed Controller OPTO - Airplane Edition

Speed Controller Features:
  • Up to 70 Amp continuous current with proper air flow, 80Amp peak
  • 2-7S Li-Po (7.4v - 25.9)
  • Programmable Timing
  • Finned Heatsync for cooler operation
  • Auto Throttle Calibration
  • Programmable motor braking
  • Programmable Switch Rate
  • Safe power-arm mode prevents accidental starts
  • Auto motor shut down if signal is lost or there is interference
  • 14 AWG on the battery input and on motor output leads
  • 1 year Grayson Hobby warranty

This ESC version is an OPTO version (no built in BEC) - Click here for BECs

What does that mean?    An extra power source for your receiver is required. The use of a UBEC, a voltage regulator, or extra batteries as the power source for your receiver is required for this version. If you hear the music tone repeat again and again for more than 3 times, you may need to check your power source to the receiver. 


Speed Controller Specifications:
Brake: Yes - Programmable
Continuous Maximum Current: 70A with reasonable cooling
Maximum Burst Current 80A <10 sec with cooling
Input Voltage: 2-7S Li-Po (7.4v - 25.9)
Output Wire 14AWG
Length: 2.55 in (65mm)
Width: 1.37 in (35mm))
Height: 0.39 in (10mm)
Weight: 63 grams / 1.54 oz.
Internal BEC OPTO - No built in BEC - Click here for BECs
Suggested Servos NONE - This is an OPTO ESC - Servo size and number will depend on which BEC installed

Grayson Hobby Manuals & Directions

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