Toronto Electric Model Aviation Club Forum

Toronto Electric Model Aviation Club (TEMAC) => Building / Construction => Topic started by: Frank v B on August 04, 2013, 04:11:52 PM

Title: Tech question: static vs flying amps
Post by: Frank v B on August 04, 2013, 04:11:52 PM
What is the (rough) ratio of amps drawn by a motor when measured static on the work bench versus unloaded in flight at speed??

If I am reading 25 amps static (wot), what would you expect it to be while in the air?

Need for speed, not smoke. ;D

Frank
Title: Re: Tech question: static vs flying amps
Post by: Ededge2002 on August 04, 2013, 04:38:44 PM
If it's a fairly clean design it will unload 10-15% depending on how hard its being loaded. If its loaded KV is %75 of unloaded kv could be as much as %20.
Title: Re: Tech question: static vs flying amps
Post by: Frank v B on August 04, 2013, 08:08:54 PM
Thanks Ed.  I knew either you or Ben would have the answer.

Frank (no smoke!)