So where do I start?
I just reread the thread that Orion posted on and everything seems to line up. Airfoil is thicker,think I'm going to try to match it up with Naca 4416.7 if there's such a thing. Right now, I just used a full rib of an old wing along with a printout of USA 35B, chopped off the rear 17 inches, and started with a rough shape of a flap similar to Piper's. The article I was referring to is the first reply that BJC made. Very useful so thank you for that. As a result, I have refined the airfoil shape to something more contemporary. I was thinking the thicker the flap, the greater the lift and everything is somewhat proportional to the stock piper flap, I wanted to slot it mainly to get the nose down on approach as pacers are notorious for nose high approaches that ride on power for shortest landings. I'm shooting for peak geometry at 50 degrees. I feel like I may be overbuilding the setup slightly as each flap will have four hinges and two bellcranks, each hinge will have a compression member adjacent to it for direct transfer of loads to front spar (except for outboard which will be 10 inches off. As for horizontal, I'm starting with enlarged tail feathers from a cub that is now 20 inches further back and placing Naca 0008 ribs on the horizontal. The engine is not moving from original position so I'm slightly concerned it will be heavy on the tail, which isn't great for ski operations. With that said, I'm pretty sure nobody has ever placed flaps this big on a pacer. I'm using the old outboard aileron hinge as my outboard flap hinge. Ailerons are going to be 20 inch chord by 4 feet which actually match very closely with stock surface area (assuming I can fit everything in there). The bellcrank to the ailerons is going to have another arm in case I feel that roll spoilers are needed after test flight. Some will find my wing to be similar a shortened version of double ender. Wish I could chat with those guys as they probably have a bunch of good info, but you know. I'm kinda enjoying all this R&D stuff.