Empennage The empennage, commonly called the tail assembly (see figure 1-7), is the rear section of the body of the airplane. Its main purpose is to give stability to the aircraft. The fixed parts are the horizontal stabilizer and the vertical stabilizer or fin. The front, fixed section is called the horizontal stabilizer and is used to p revent the airplane from pitching up or down . The rear section is called the elevator and is usually hinged to the horizontal stabilizer. The elevator is a movable airfoil that controls the up-and-down motion of the aircraft's nose. The vertical tail structure is divided into the vertical stabilizer and the rudder . The front section is called the vertical stabilizer and is used to prevent the aircraft from yawing back and forth . The principle behind its operation is much like the principle of a deep keel on a sailboat. In ligh...
Power Plant The power plant may be an engine and propeller combination or a jet engine. The most commonly used power plant in personal aircraft is the gasoline engine, which will be studied in detail later in this chapter. It is mounted in position against a fire wall in the front section of the airplane. The fire wall provides separation of the power plant from the remainder of the fuselage. The engine cowling is the metal covering which encases the engine and its accessories, streamlining the plane and conducting air around the engine cylinders for cooling. Because the action of the pistons is an up-and-down movement, this engine is called a reciprocating engine or a piston engine. In multiengine aircraft, the engines are usually mounted on the leading edges of the wings. The jet engine gives the airplane a thrust (push forward) because of the jet exhaust gas coming out of the back of the engine. The moving part of this engine is a turbi...
What is Aeronautics? Aeronautics is the science of flight. Scientists and engineers who study aeronautics learn about how and why airplanes fly. Using what they learn, they can design better, safer, and cheaper-to-build airplanes. To understand how NASA scientists and engineers begin this big job, we need to first learn how an airplane flies . Then we can answer a few other questions including: What forces act on an airplane? Can I see any of this myself when I'm flying on an airplane? What are the different types of airplanes? By the way, do birds fly the same way airplanes do? Why does NASA study aeronautics? Where else on the Internet can I learn about aeronautics? An Aeronautics Glossary When we are done here, we can jump into learning what tools are used to design an airplane . For any query comment your question here and for contect me ...
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