actually, i am in the air force and funny as it may be with me asking the questions about the aerodynamics of the flaps, i'm a crew chief on C-17 aircraft. i know how they work with the lift and drag on the real planes, but different typs of flaps work different ways as far as the coefficients, but i just didn't know how they would react on such a smaller scale, and not being exactly the same design and deployment. i was worried about the pitch up or down when deploying them and how far to set them up for as far as throws for take off and landing. i think i will start out with the 40 or so percent on the landing and maybe about 20% for take off. only because that's what my C-5 used to deploy to back when i was working the down at Travis. i think i'm wel beyond the scale thing, as i want to put so many of my own likings on it, but if i do decide to go with just scale applications, about the rib seams and the pinking tape and what not... i read that the seams have been reproduced on 1/4 and 1/3 scale aircraft using the 1/2 inch wide pinking tape, but i think the GP .40 size kit is about 5.5 scale, so how off would the 1/2 inch pinking tape be from actual scale? well, i need to get on with the plane, but thank you so far and talk later...[8D]