I just received my Extra: very nice little plane.
I will probably have a lot of questions along the way, as I am totally new to electric.

First question: How much cooling is needed in the engine/cowl space? The instructions mention opening the cooling intake holes: does it mean I need to enlarge the two already open intake holes in the front of the cowl ???
I plan to make cooling holes on the botoom of the cowl, and will probably will stick with the proportions I use in my gas or nitro planes: cooling exit hole size= 2.5 x cooling intake size.

Thank you for info.