I have a plans set for Reese's Cloud Dancer 120. What I want to do is build a 41" electric version but what I notices is that while reducing the overall size by 50% or so, I lost more than 70% of the wing area. I discovered this when trying to specify the dimensions in MotoCalc and the area seemed alarmingly small.
I am no engineer, it took a little bit of head scratching and re doing my calculations before some hazy reccolection of highschool geometry showed up with something about area reducing by the square of the hypoteneuse tangent to the radius divided by pi. Or some such thing.
What I am thinking of doing is enlarging the ribs and wing saddle but building the wing with the 41" spacing, in other words increasing the chord but not the span.
Is this even necessary? Should I also enlarge the tail group?
Other Ideas?