hi, i'm new to this forum as well, but if you are looking at different designs for modeling aircraft, there is this one design which i am currently working on at adapting from a rubberband powered plane, to an R/C plane, the website is http://www.aircrash.org/burnelli/pdf/mod_oa1.pdf the thing about this design is that the fuselage actually produces lift, as you are into number crunching you can work out that a plane which has a fuselage that supports itsself can carry a higher payload for the same weight.

David