4/3/2024 0 Comments Flat bottom airfoilThe rotating wing can be viewed as a device that creates lift, or just as correctly, it can be viewed as a device that creates thrust. By comparison, a propeller blade, helicopter rotor blade, or turbofan engine fan blade rotates through the air. These rotating blades could be referred to as rotating wings, as is common with helicopters when they are called rotary wing aircraft. The wing of an airplane moves through the air because the airplane is in motion, and generates lift by the process previously described. An airfoil can be the wing of an airplane, the blade of a propeller, the rotor blade of a helicopter, or the fan blade of a turbofan engine. An airfoil is any device that creates a force, based on Bernoulli’s principles or Newton’s laws, when air is caused to flow over the surface of the device.
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