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Old Mar 10, 2015, 01:49 PM
Registered User
Carrollton, TX
Joined Aug 2007
114 Posts
Discussion
What size ESC would you recommend?

I purchased from another member of this forum a ChangeSun 10 blade 70mm fan and a leopard LPB2860- 3400kv motor. I am looking for advice from those more experienced in EDF fan/motor combos to weigh in on the selection of an ESC size.
Any help is greatly appreciated.
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Old Mar 10, 2015, 02:23 PM
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Doug Bartley's Avatar
Canada, ON, Owen Sound
Joined Oct 2008
3,040 Posts
Look up the specs on the motor yourself, then add 20% max amps as a safety margin. Eg if the motor is rated for 40A, buy a 50A Esc. Doug B
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Old Mar 10, 2015, 02:28 PM
I just want to go fly!
walter3rd's Avatar
United States, MD, Towson
Joined Aug 2012
3,067 Posts
Get a watt meter you will love it for electric flight.
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Old Mar 10, 2015, 03:29 PM
Registered User
Carrollton, TX
Joined Aug 2007
114 Posts
Thanks. 80A max on motor so 100A ESC on 4S
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Last edited by scott75007; Mar 10, 2015 at 03:54 PM.
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Old Mar 10, 2015, 03:46 PM
homo ludens modellisticus
Ron van Sommeren's Avatar
The Netherlands, GE, Nijmegen
Joined Feb 2001
11,312 Posts
Power is not relevant here. Controller must be able to handle motor current +20%, and battery voltage.

Vriendelijke groeten Ron
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Old Mar 10, 2015, 03:52 PM
Registered User
Carrollton, TX
Joined Aug 2007
114 Posts
Will use 4S battery
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