777 and Winglets

[hyflyt560]

When I was studying for my CX interview, I found some info on winglets on wikipedia.org. Also, I believe there is some info. in "Handling the Big Jets."

 

[(o) (o)]

When I was studying for my CX interview, I found some info on winglets on wikipedia.org. Also, I believe there is some info. in "Handling the Big Jets."

were u hired?

 

[hyflyt560]

were u hired?

Unfortunately no.

 

[jeroom]

What happened?

 

[Helos2Galaxy]

I researched this in detail as I am currently studying (not enough) for my CX interview this month.

Winglets can also add thrust to an airframe. Depending on the winglets shape it can add lift facing backwards but is construed as thrust because of the rearward lift vector.

 

[corky]

I was in the aero department at Boeing when the -200ER and -300ER were being developed. We took several winglet and raked tip designs to the wind tunnel and the raked tip had better drag coefficients. Same reason you see the raked tip on the 767-400ER. These airplanes were developed concurrently.