Originally Posted by Genghis the Engineer
Well, technically you can scale from a model to a full-scale aeroplane (or vice versa), the problem is that the various characteristics scale at different rates. So, to carry out an effective scaling exercise you need a fairly high level of engineering knowledge - and even then the further you extrapolate data, the more potential for "gotchas".
G
In fact, if you COULDN'T translate from model to full-sized, there'd be an awful lot of wind tunnel engineers looking for new jobs ....