Building a 40 size (as a winter project, okay, I am getting started early) and am wondering if it is worth it to install flaps. I eventually want to build a 100" wingspan AT-6 Texan that will have flaps and retracts and am wondering if this is a good idea. I started flying in May and have had some success and a lot of failures, but that is how you learn also. Currently, I am repairing an Avistar, which I have had a lot of success with, and some failures.

Also, people mention sheeting the leading wing edges up to the main spar which I am thinking about doing. When you do this do you shave down the ribs in order to accommodate the sheeting or is another method better?

Thanks for your help