If you are interested in lofting the intermediate ribs of a wing with different root and tip airfoils it is not hard to do. Yes, a lofting program can do it for you in seconds and a CAD program can help you get it done faster but it can be done "by hand" the old fashioned way with a bit of patience. Below is a link to a tutorial that I did on the process if anyone is interested.

http://www.rcuniverse.com/forum/rc-w...lets-loft.html