Why do horizontal stabilizers not have winglets?
Why do horizontal stabilizers not have winglets? Putting them on the tail surface would not help to limit the wingspan: The horizontal tail can easily grow and still be much smaller than the wing. There is no single case where winglets on a horizontal tail would have made sense. What you see and might interpret as winglets are actually additional fins.
Why are 787 wings so flexible?
The wings of the 787 are flexible due to the use of composite materials such as CFRP or carbon fiber-reinforced polymer (CFRP). Boeing claims that this composite material makes up approximately 50% of the wings on the Dreamliner.
Why are 787 wings white?
The main reason why aircraft are painted white or light colours is to reflect sunlight and minimise both the heat and any potential damage from solar radiation.