Go Back  RCU Forums > Electric Aircraft Universe > Electric General Discussion
Reload this Page >

Is their such a thing as a worn out ESC?

Notices
Electric General Discussion General Discussion forum about rc electric related aircraft, accessories, flight, tips, etc.

Is their such a thing as a worn out ESC?

Old 02-03-2024, 05:28 PM
  #1  
rustyrivet
Thread Starter
My Feedback: (6)
 
rustyrivet's Avatar
 
Join Date: Mar 2002
Location: Houston TX
Posts: 851
Received 3 Likes on 3 Posts
Default Is their such a thing as a worn out ESC?

Was wondering if there are any dangers about buying a used ESC that appears to be working on the bench, but could cause a crash when exposed to the stresses of actual flying at the field. In particular I was thinking of buying a used Castle Phoenix Edge 160 for 12S Lipo use. As explained, is there still a concern about it having limited life left in it, though it could appear to run a test motor on the bench just fine ?
Old 02-04-2024, 08:52 AM
  #2  
mgnostic
 
mgnostic's Avatar
 
Join Date: Jan 2003
Location: Kamay, TX
Posts: 1,555
Received 74 Likes on 64 Posts
Default

The two electric planes that I have personally witnessed burning up at the field were both ESC failures. So yes, they can fail. IMO there are two major factors. One is quality. One of the ESCs that failed was in a cheap ARF. It failed when the airplane had fewer than 10 flights. If you have a manufacturer who is using the cheapest available parts you are going to have a higher failure rate. Castle has been around long enough that I wouldn't worry so much about that. The other question is how hard has the unit been hammered. If it has a history of being hovered for days on end with the largest possible batter pack or run in a heavy warbird with a history of prop strikes I would be cautious. The flipside is that if it has been flying around doing touch and goes in a Cub it could have years of life left in it. ESCs are prone to failure for the same reasons as any other electronic device, Heat, vibration and current spikes are prime causes of failure.
Old 02-04-2024, 12:35 PM
  #3  
rustyrivet
Thread Starter
My Feedback: (6)
 
rustyrivet's Avatar
 
Join Date: Mar 2002
Location: Houston TX
Posts: 851
Received 3 Likes on 3 Posts
Default

Thanks.
But after reading your reply, perhaps I need to rephrase my question differently. Most of us with some time in electric know even a good ESC can be destroyed if run hard, and/or too long near max, and/or poorly ventilated all to cause the "magic puff". ( yep, cheapie ESC's worse)
.
Question Rephrased;
Can hidden damage in a quality Castle ESC occur accumulatively, so that it looks like new, runs fine on a bench, but is a crash waiting to happen maybe not today or tomorrow, but soon? I assume "Yes", but would like to hear from those who feel like they weren't running their plane particularly hard when the ESC went kaput!

This question of "accumulative" and unforeseen damage inside it is what concerns me about buying used ESC's which otherwise look nice & I also bench tested.

Last edited by rustyrivet; 02-04-2024 at 02:15 PM.

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service -

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.