HI Anakin,
Being a digital print guy, I checked those numbers (sorry) and tho the usual true A-series to next up A-series is 141% (140 in certain circumstances), you are right about 139% from 1:100 to 1:72 (138.8888). I would go to a copy shop that does plan printing, and for probably about US$3 to $5 you could have the plan enlarged onto one piece of paper, probably A1 or A0. Much nicer than sticking several A3s together!
As for the planes, I couldn't see anything from those pix. I wonder if the linkage is broken in the photo you've seen (or if a drawing, if the artist had no idea), because they do NOT work like airplane ailerons for roll, they strictly work for pitch and they have to work together. Now if you mean curl instead 9which now that i look at the pic again you must mean this), I would say one was put on upside down! I would think they would have to be flat, or if designed curved, curving the same way, or they would naturally act as ailerons and roll the sub! I'm just as confused.
Looks like it would be a good model, and not too terible to do. keep us posted.
