Like a lot of newcomers to the hobby I kinda worked backwards from the fast, sexy stuff to the humble Hobbyzone Champ. If you don't have one, buy one now.
I can't say anything about the dumpy-looking little orange scrap of foam that hasn't been said before, so I'll just leave it at this: It's brilliant.
But it occurred to me this evening when my kindergarten-age son and 3-year-old daughter were having trouble catching the little Champ out of the air that it might be better as a biplane. My instinct was correct.
About 40 minutes later, I'd come up with what I think is a really good way to have a "convertible" biplane champ without any modifications to the airframe — you CAN have your high-concept fanciness without adulterating your beloved little orange foamie.
I'll put it in a sentence, and then the pictures should speak for themselves:
A wire "cradle" is made to slot snugly into the Champ's plastic landing gear slot that holds the lower biplane wing, which is made from the tattered remnants of the last wing (you know you kept it) that locates the wing vertically snuggly against the bottom of the fuselage and "clips" it in forward, providing correct leading-edge alignment.