Cadet Competition Written Practice Exam

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Prepare for the Cadet Competition Written Exam with comprehensive study materials, including multiple-choice questions and informative hints. Equip yourself with the knowledge required to excel in the exam!

Practice this question and more.

The part of the propeller that has the highest rotational speed is the _______.

Hub
Root
Tip
Blade

The correct answer is: Tip

The section of the propeller that experiences the highest rotational speed is the tip. As a propeller rotates, different parts of it move at different speeds due to their varying distances from the center of rotation (the hub). The tips of the blades are the farthest from the hub, which means they cover more distance in the same amount of time compared to the inner parts of the propeller. This results in the tips achieving the highest linear velocity as they sweep through the air. Understanding this concept is crucial, as it affects the propeller's efficiency and performance. The design and materials used in propeller tips are often optimized to handle the stresses associated with this high speed, which can lead to phenomena such as tip vortex formation that affects the overall aerodynamics of the propeller.