Chapter 25: Transportation Vehicles David J. Mejia Ortiz

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Across
  1. 2. the region above the troposphere.
  2. 6. the lowest region of space above the earth in which spacecraft and satellites operate.
  3. 8. a vehicular system that controls the speed and direction of the vehicle.
  4. 11. the force that holds or lifts a craft in the air. It is critical for all flight.
  5. 12. the instruments that help pilots monitor and properly control aircraft.
  6. 13. the layer that extends from 22 to 50 miles (35 to 80 km) above the earth.
  7. 14. the upward force exerted on an object immersed in a fluid.
  8. 15. a lighterthanair non rigid airship.
  9. 17. transportation on rivers, on lakes, and along coastal waterways.
  10. 20. a system that controls and directs the power of an engine to do work.
  11. 21. a structure that provides steering capability for an aircraft.
  12. 22. ships used to haul both crated and bulk cargo.
  13. 23. rockets with two tanks. One contains the fuel, and the other contains oxygen.
  14. 27. space flights that use rockets to place payloads into orbit.
  15. 29. large ships used for transporting people and cargo for a profit.
  16. 30. vessels that carry people.
  17. 31. a type of power source attached to the stern of a boat.
  18. 32. a type of special boat that can travel on the surface of or under water.
  19. 33. the part of an aircraft that separates the air into two streams, providing lift.
Down
  1. 1. a type of orbit in which a satellite travels the same speed the earth is turning.
  2. 3. the part of a long-distance truck where the power and operator units are placed.
  3. 4. an aircraft that develops lift by spinning an airfoil. See fixed-wing aircraft.
  4. 5. space flight a space flight that carries human beings into space and returns them safely to the earth.
  5. 7. a special type of boat suspended on a cushion of air.
  6. 9. a type of control system that makes a vehicle change its direction.
  7. 10. rockets that use a powder or sponge like mixture of fuel and oxidizer.
  8. 16. transmissions that have a clutch between the engine and the transmission.
  9. 18. the farthest distance away from the earth.
  10. 19. craft vessels owned by private citizens for recreation.
  11. 24. the region lying just above the mesosphere. It is also called the thermosphere.
  12. 25. the body of an aircraft that contains the flight crew, passenger, and cargo units.
  13. 26. the last layer of space above the earth that blends directly into outer space.
  14. 28. a type of jet engine that was developed during World War II.