just a comment about engine selection in a .40 sized pattern plane.

If you are looking for modest perfomance then you could use an OS .46fx or a thundertiger .46 pro.

unfortunately, for good verticle performance you should use such as the YS 63 or the Saito 72 4 strokes.

I have been experimenting myself with the .40 size ships and unless you can keep it well under 5 lbs (4.5 being my ideal) a .46 size 2 stroke is a little lacking. unless you wish to spend the extra dough on mini servos and duralite batteries and such to keep weight down.

my opinions only

Hubb