Fargoo
What a rude reply. No need for it.
What part of
Why didn't you do some of your own research? A search of B777 winglets brings up more hits than you can handle- try one:
do you think is rude? Don't you think if someone is coming to a public forum with a query, they should at least first attempt to research the problem themselves? That was merely a suggestion to learn to look up a query before bothering people with it!