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chapter 14
| Term | Definition |
|---|---|
| Aerodynamics | the properties of a solid object regarding the manner in which air flows around it. |
| Aeronautics | the science or practice of travel through the air. |
| Aerospace engineering | primary field of engineering concerned with the development of aircraft and spacecraft. |
| Aileron | a hinged surface in the trailing edge of an airplane wing, used to control lateral balance. |
| Angle of attack | the angle between the chord of an airfoil and the direction of the surrounding undisturbed flow of gas or liquid. |
| Angle of incidence | the angle that an incident line or ray makes with a perpendicular to the surface at the point of incidence. |
| Astronautics | Study of manned and unmanned craft outside the earth atmosphere . |
| Bernoulli theory of lift | Theory that states an airfoil is more curved on the top so air traveling over the wing has to travel farther than the air traveling under the wing causing the air flowing over the wing to flow faster . |
| Dihedral angle | A dihedral angle is the angle between two intersecting planes. |
| Drag | aerodynamic force created by friction . |
| Elevator | control surface located on the rear of the horizontal stabilizer that controls vertical movement . |
| flap | Airplane component that is located on the inside rear of wings and can be adjusted at take off and landing for additional lift . |
| gas turbine engine | also called a combustion turbine, is a type of continuous combustion, internal combustion engine. |
| lift | a device incorporating a moving cable for carrying people, typically skiers, up or down a mountain. |
| pitch | the quality of a sound governed by the rate of vibrations producing it; the degree of highness or lowness of a tone. |
| propeller | a mechanical device for propelling a boat or aircraft, consisting of a revolving shaft with two or more broad, angled blades attached to it. |
| propulsion system | is a machine that produces thrust to push an object forward. |
| rudder | a flat piece, usually of wood, metal, or plastic, hinged vertically near the stern of a boat or ship for steering. |
| satellite | an artificial body placed in orbit around the earth or moon or another planet in order to collect information or for communication. |
| thrust | he propulsive force of a jet or rocket engine. |
| wind thurbine | a turbine having a large vaned wheel rotated by the wind to generate electricity. |
| yaw | a twisting or oscillation of a moving ship or aircraft around a vertical axis. |
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