A330 Winglets
HS - thanks for the rapid reply. If the penalty is that low what benefits do the winglets give to performance, fuel economy etc.
Winglets, on other Airbus models, appear much smaller than the 330 (that may just be my one dicky eye that gives that impression) so by that reasoning(?) the penalty would be greater on a 330 than other models.
Probably talking b*****ks but the grey cells are still porridge.
Still nice to get such a quick response.