777 no winglets why

One reason that the does not feature such wingtip extensions is the operational limits these would place on the aircraft. The LR and ER variants of the aircraft have a wingspan of The upper limit for this category is 65 meters, and adding winglets would exceed this.

This would cause the aircraft to be classified under aerodrome code F. This categorization is the same as larger aircraft such as the Airbus A and Boeing , and would limit its versatility. Manufacturers also have to consider the added weight that winglets give to an aircraft.

Furthermore, later designs, such as the F pictured below, feature raked wingtips. This profile change at the end of the wings offers similar efficiency benefits to winglets. Share this post Link to post Share on other sites. EGLL77W 1, Fabo Ioan92 There are, and they're are called "Raked Wingtips".

FSPilot Mitch bowman. Airbusman 1. Posted May 19, Create an account or sign in to comment You need to be a member in order to leave a comment Create an account Sign up for a new account in our community. Register a new account. Sign in Already have an account? Sign In Now. Go To Topic Listing. It makes more sense and saves more fuel to optimize the climb and approach segments than it does to try to optimize the cruise phase of the flight.

That might seem counter-intuitive, but Boeing engineers proved the math. The result is that they work in ultra long cruise segments.

For more details read this blog.. Note that also has a similar 'raked' wingtip instead of winglet. Another potential drawback to winglets is that of gate spacing at the ramp. Winglets can make for a much larger footprint at the gate. This could, in turn, make 5 airplanes without winglets into planes with winglets, depending on spacing requirements and availability.

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Learn more. Why does the B have no winglets? Ask Question. Asked 5 years, 1 month ago. Active 2 years, 9 months ago. Viewed 35k times. Improve this question. Jordy 1, 11 11 silver badges 20 20 bronze badges. Chaintawit Singkaew Chaintawit Singkaew 1 1 gold badge 2 2 silver badges 8 8 bronze badges. The wing was design with a modern understanding of aerodynamics.