Originally Posted by Znybar
Thing is, your BEC could fail just as much as an ESC (and lead to much the same result). 3A for a 550 is borderline to start with (most std servos draw about 0.6A) so having that fail was not that big a surprise. The YEP I got has a 6A BEC so... I'm overkilling on both ends: the ESC and the BEC.
I use seperate BEC on anything of value. The BEC could fail the same as the BEC in the ESC but the ESC could fail and take the BEC with it also. Thus, safer with a seperate BEC in my opinion.
Just thinking aloud here.
Also, I use a seperate receiver pack on the larger stuff (planes and helis).