737 Winglets
Nosey SLF speaking....
Had the pleasure of paxing on a KL 737 with winglets this afternoon and noticed that the wings seem to flex a lot more on ground and in flight. How much does the winglet weigh and would increased wing flex be looked at as part of the certification process? Is wing flex even increased, or is it just more apparent from the cabin on the wingletted models?
Also wondered if the winglet affects how the aircraft handles in crosswinds, as they must have a fairly substantial surface area...