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The Boeing 777-300ER has emerged as one of the most successful aircraft models from Boeing, with over 800 deliveries since its introduction more than two decades ago. Known for its exceptional range and engine performance, the aircraft is a staple in long-haul fleets across major airlines globally.
A key feature that sets the 777-300ER apart is its raked wingtips, which enhance aerodynamic efficiency and reduce fuel consumption by up to 2%. This design choice allows operators to save significant amounts on fuel costs annually. The concept of raked wingtips was not new at the time but contributed significantly to the success of this model.
Raked wingtips differ from traditional winglets by extending each wing with a swept-back angle, reducing drag and improving performance. On the 777-300ER, these wingtips extend each wing by about two meters and improve climb performance while requiring less takeoff length. With an aspect ratio of 9.0, they are also lighter than vertical winglets.
