Some time ago at the flight strip, I nodded politely BOW and then, not in agreement, but to express willingness to listen, as a chap expounded bis conviction that small errors in airfoil curvature made vast differences in performance, His dissertation was interrupted by a throaty Zenoah roar and we turned to watch a young fellow readying his giant Telemaster. Thinking about what I'd just been listening to, the multi-stringered wing of this famous performer drew my attention. The big Telemaster wing has an impressive lift-and-carry reputation. But a precise airfoil curvature? No way. The upper bulge of its wing is shaped by the par-allel flats of spanwise stringers.
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