Chapter 7 - Basic Aeronautics and Aerodynamics (Aerospace)

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Across
  1. 3. The rear portion of an airfoil where the upper and lower surfaces meet.
  2. 4. The upward-acting aerodynamic force that opposes weight.
  3. 7. Ability to change the direction of engine thrust for better maneuverability.
  4. 10. The curvature of the airfoil's surface.
  5. 11. Lift created by the downwash of air behind a wing.
  6. 13. A sudden loss of lift when the critical angle of attack is exceeded.
  7. 14. The forward-acting mechanical force generated by an engine.
  8. 16. The downward-acting force caused by gravity.
  9. 18. A fluid's resistance to flow; causes friction drag.
  10. 19. Measure of the heat energy in a gas, affecting its density.
  11. 23. The part of an airfoil that first meets the airflow.
  12. 27. Ratio of an aircraft's speed to the speed of sound.
  13. 29. Swiss scientist who established the principle relating fluid speed and pressure.
  14. 30. The weight of the crew, passengers, fuel, and cargo.
  15. 31. How weight is spread throughout an aircraft.
  16. 32. The rearward-acting force that opposes thrust.
  17. 33. Angle between the chord line and the relative wind.
  18. 34. A wave of increased pressure.
  19. 35. The science or art of flight.
  20. 36. Flying faster than the speed of sound.
Down
  1. 1. States that as the speed of a fluid (like air) increases, the pressure within the fluid decreases.
  2. 2. Resistance caused by air rubbing on the aircraft's surface.
  3. 5. Resistance caused by the shape of the aircraft (also known as pressure drag).
  4. 6. Irregular, unsteady air motion; can cause a bumpy ride.
  5. 8. A wave of decreased pressure.
  6. 9. Lift produced by the movement of an airfoil through the air.
  7. 12. Smooth, streamline flow of air, usually over the leading part of a wing.
  8. 13. A powerful, thin pressure disturbance created when an object moves faster than the speed of sound.
  9. 15. Varies with air temperature; about 761 mph at sea level.
  10. 17. Mass per unit volume; decreases with altitude.
  11. 20. An imaginary straight line connecting the leading and trailing edges of a wing.
  12. 21. Force exerted per unit area, a key characteristic of gas.
  13. 22. Drag that is a necessary byproduct of producing lift.
  14. 24. Drag caused by the formation of a shock wave at near-sonic speeds.
  15. 25. The direction of the airflow with respect to the airfoil.
  16. 26. AIRFLOW Rough, irregular air flow characterized by eddies.
  17. 28. The study of the movement of air and the forces it creates on objects in motion.