Winglets are not absolutely required but many planes have winglets added to improve the aerodymanic efficiency of the wing.
These are called winglets. They reduce drag therefore increase lift.
Because they have winglets which cause them to release farts. These farts eventually cause the plane to explode.
Winglets increase the fuel efficiency of aircraft that have them.
I can't think of any cathedral-wing aircraft that DO use winglets. Spanwise flow on a cathedral wing would be flowing 'uphill' (inward) and would be interrupted by the fuselage.
Winglets increase an aircraft's operating efficiency by reducing induced drag at the tips of the wings
to reduce drag
Aircraft use winglets to improve fuel efficiency and reduce drag. Winglets are vertical extensions at the tips of wings that help mitigate vortex formation, which occurs when high-pressure air from beneath the wing spills over to the low-pressure area above. By minimizing this induced drag, winglets enhance lift-to-drag ratios, leading to lower fuel consumption and improved overall performance. Additionally, they contribute to reduced noise and environmental impact.
They are called winglets, the main function of the winglets is to reduce drag. Reducing drag increases speed and decreases fuel consumption, thereby extending range and saving money.
Winglets are fitted to the tips of aircraft wings to increase the lift efficiency of the wing. As the airflow passes over the wing shape, the air going over the top of the wing has further to travel. The air flowing over the wing near the the fuselage body up to about 3quarters of the way towards the tip of the wing has to travel up and over the wing, thus creating the lift. Air, as with water will choose the path of least resistance, so airflow near the wing tip starts to go over the top of the wing but then" slips off " to the side meaning that the end section of the wing produces little or no lift. The winglets are there to stop the slipping off effect by blocking the airflow from slipping off. This means that lift is created along the full length of the wing.
Thrust vectoring. The winglets are there for stability - if they were to try placing ailerons on the winglets, they'd likely be unable to withstand the force exerted on them by the missile moving at speeds of over Mach 2.
i need to find out the 10 names of the early flying planes
Planes are too expensive to buy. You'll need to have lots of money to buy an aircraft.