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40A 2-6S Programmable Brushless Air ESC
  • Overview
  • Specs
  • Parts & Accessories
  • Manuals & Support
Onyx Brushless Programmable ESCs


Whether you prefer flying fixed-wing aircraft or hovering with helis, there's an Onyx Brushless ESC perfect for your application! All are designed for everyday use, ranging from the 12A for small aircraft to the 80A for larger models. Each one is programmable and packed with safety features like low-voltage cutoff protection, thermal protection and signal loss protection. In addition to NiMH and LiPo compatibility, Onyx ESCs automatically sense the number of cells in connected battery packs. All Onyx ESCs are also backed by a 1-year limited warranty.


  • T-Plug connector
  • Low output resistance for superior current handling ability
  • 3 start modes: Normal/Soft/Super-Soft
  • Compatibility with NiMH and LiPo batteries
  • Auto cell selection
  • Compatible with fixed-wing aircraft and helis
  • Braking and timing adjustments
  • Heavy-duty BEC regulator
  • Low-voltage cutoff protection
  • Thermal protection
  • Signal loss protection

Auto Cutoff: Yes
BEC: Yes
BEC Continous Current: 3A
BEC Type: Linear
BEC Voltage: 5V
Battery Connector: T-Plug
Battery Input Lead: 14AWG, 3.5 in (89mm) long
Brakes: Yes
Forward: Yes
Height: 1.36 in (34.7mm)
Input Voltage: 3-6S LiPo, 6-18 cell NiMH
Length: 1.92 in (49mm)
Low-Voltage Cutoff Programmable: Yes
Maximum Burst Current: 60A
Maximum Continuous Current: 40A
Motor Connector: 3.5mm Bullet
Motor Output Lead: 16AWG , 3 in (76mm) long
Reverse: No
Type: 40 Amp 3-6S Programmable BL AIR ESC
Weight: 1.23oz (35g)
Width: 1.55 in (39.5mm)

Optional Accessories

$25.99  $18.99
In Stock
$69.99  $54.99
In Stock
$7.99  $6.99



Product Support Tips

Product Support

Technical questions about this ONYX product should be directed to Horizon Hobby's Product Support Department:

Horizon Hobby, LLC.
ATTN: Product Support

2904 Research Road
Champaign, IL 61822

To place a Horizon Hobby Support Inquiry please visit our Inquiry Form Support Phone:(877) 504-0233
Fax:(217) 355-1552

Sales Support

If you would like to purchase this product, please go to the Store Locator or contact the Horizon Hobby Consumer Sales Department:

Horizon Hobby, LLC.
ATTN: Consumer Sales

2904 Research Road
Champaign, IL 61822
Email: Sales Phone:(800) 338-4639
Fax:(217) 355-1552