Hi,
Re GoNavy's reply re the hatch cover. Maybe I am being a bit over protective but for some reason I don't really trust the 1cm square surface area which is all that retains a servo to a hatch cover when using the two small hardwood blocks as supplied in most kits and ARF's. I see many build threads where a lot of strengthening is carried out to flying surfaces, fuselages and the like but when I see the aileron and flap servos here are the servos screwed onto two small pieces of hardwood with a dab of epoxy holding them on.