I once ripped the fins CLEAN OFF a buddy's MA3 with a lowly Composite Dynamics E20-4.
They shredded off at about 300' and continued straight up to about 700'.
My buddy's response was "Geez, thanx for the motor".
I told him he should have used BETTER GLUE.

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When in doubt, WHACK the GAS and DITCH the brake !!!

Yes, there is such a thing as NORMAL, if you have to ask what is "NORMAL" , you probably aren't !
Failure may not be an OPTION, but it is ALWAYS a POSSIBILITY.
ALL systems are GO for MAYHEM, AGITATION, CHAOS, TURMOIL, FIASCOS, AGGRAVATION, INSTIGATION, NUISANCE-ACTION, and HAVOC !