I having a blast flying this airplane with 2s 1200 lipo etecs and gws 350c-ds, but... suddenly it stops (I thought that I will never have a deadstick again...ha!) and dies, after inspection one brush have dissapeared and the other was pretty used; with 30 flights it is normal?

ok, let`s face it, I need an improvement in my setup, but if I use a brushless as see the lipos wont be usefull unless I move to 3 cells, or not?

this is my own design 260g RTF

Thanks