Question about KV
12-03-2022, 11:58 AM
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Question about KV
What does it mean when the ad for a ducted fan motor says its 2452-2100 KV. Also with reverse.
12-03-2022, 12:22 PM
Join Date: Jul 2003
Location: Jacksonville, FL
Posts: 27,235
Rpm per volt input.
It's a theoretical rating and doesn't take into account some things like load but a higher KV motor spins faster with a higher input voltage.
So take your battery voltage and multiply it by the KV and you get the max RPM.
12-03-2022, 01:57 PM
Join Date: Jun 2002
Location: Watford, UNITED KINGDOM
Posts: 13,132
The first four digits are size so it’s a small motor, 24mm dia and 52mm long in runner. For something like a 64mm EDF unit
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