My new 1200 sq in model - powered by 40cc ZDZre, will have wing loading of just under 21 oz /sq ft.
This was an exercise done to see what real advantages could be had, in a 2mx2m aerobatic (FAI legal) setup.
Should have it up and flying next week.
BTW- typical models this size/weight are powered by 1.4 glo engines. (23cc)
I have built a bunch of those.