I just got a new GP Cessna 182 ARF and am adding flaps to the wings before assembling it. From what I have heard this plane might need them, some people say they land too hot. Anyway, here are my first pics.

The first thing I did was draw a line on the bottom side of the wing, parallel to the trailing edge, exactly 1 and 15/16" from the edge. This put my cut right in front of the rear wing spar, so the newly removed "Flap" comes off with a nice leading edge surface. I have read elsewhere that someone recommended cutting in line with the aileron. I don't recommend it, this way looks more scale and ends up easier in my opinion. I used a band saw and some scrap wood to make sure the wing was level as I cut it. Here is a pic of the flap cut out of the rear of the wing, as well as the "complete" flap with the new covering on it.