How Does It Fly? Propeller Plane by Nancy Robinson Masters
Author:Nancy Robinson Masters
Language: eng
Format: epub
ISBN: 9781610800785
Publisher: Cherry Lake Publishing
SHAPES AND SIZES
Wings and propellers are airfoils. An airfoil is a shape created to direct the flow of air. Wings are curved at the top and flat on the bottom. Air flows faster over the top and slower across the bottom. This creates lift, making the airplane fly.
What do you notice about the shape of this planeâs wing?
Inventors Orville and Wilbur Wright created the first airfoil-shaped propeller. They twisted a wingâs shape to make a propeller blade. Air flowed evenly across the entire propeller blade.
Propellers are made in different shapes and sizes. They fit the different shapes and sizes of engines. The propeller and engine are the power plant of the airplane.
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