777 No Winglets
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777 No Winglets
A common interview question with CX is asking why the 777 does not have winglets. I was doing some reading on this, and for the most part all I can find is that the 777 wing is simply more efficient and does not need winglets; however, I can't seem to find a good explanation as to what makes the wing more efficient. Again, some sources say its because the 777 has a supercritical airfoil, but I've read elsewhere that most jets have supercritical airfoils these days, yet many a/c still have winglets.
Can someone please shed some light? Thanks.
Can someone please shed some light? Thanks.
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As i understand it they engineered the raked wing tip (basically an squarish tip that angles back slightly) that does the same job as the winglet but has less drag/weight/complexity. They've put them on the odd 767 as well.
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Different response required if you want the job, but I'd just tell them that "the people who designed it are the aerodynamics experts, you just want me to fly it, why should I care if it is a biplane or has a tricycle undercarriage, 2, 3 or 4 hydraulics system; I'm sure they had a good reason and that because of that you, CX, decided to buy it".
I'll get me coat....
I'll get me coat....