many post on this forum..

for both types... of capacitors

for noise control/filtering into receiver
for voltage control into speed controller... and/or voltage/current management for BEC going to servo's

to much can be as bad as to little..

I am NOT a teacher... I just know stuff

here is a LINK.. with a very short reading on capacitors
https://en.wikibooks.org/wiki/Electronics/Capacitors
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