I know not where one may draw the proverbial line. Is it dimensions that are the only criteria or do the criterion extend to materials of construction? I, for one, have yet to have seen a full-scale aircraft constructed on balsa, CA, and/or monocote. Never seen a full-scale aircraft powered with glow fuel or LiPo batteries either. Clearly, beyond the scope of this article. To that end, I just want to fly something that approximates anything propeller-driven circa WW-II, not run out of beer, and share some laughs and camaraderie.