Your SlideShare is downloading. ×
0
Helicopters
Helicopters
Helicopters
Helicopters
Helicopters
Helicopters
Helicopters
Helicopters
Helicopters
Helicopters
Helicopters
Helicopters
Helicopters
Helicopters
Helicopters
Helicopters
Helicopters
Helicopters
Helicopters
Upcoming SlideShare
Loading in...5
×

Thanks for flagging this SlideShare!

Oops! An error has occurred.

×
Saving this for later? Get the SlideShare app to save on your phone or tablet. Read anywhere, anytime – even offline.
Text the download link to your phone
Standard text messaging rates apply

Helicopters

8,148

Published on

Published in: Business, Technology
0 Comments
1 Like
Statistics
Notes
  • Be the first to comment

No Downloads
Views
Total Views
8,148
On Slideshare
0
From Embeds
0
Number of Embeds
5
Actions
Shares
0
Downloads
361
Comments
0
Likes
1
Embeds 0
No embeds

Report content
Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
No notes for slide

Transcript

  • 1. Helicopters David Clay Richard Cody
  • 2. Brief history of helicopters
    • Helicopters were the first heavier then air design by Da Vinci
    • In 1906 gyroplane no.1 was created
    • In 1924 Etienne became the first to fly a kilometer in a closed circuit with a helicopter
    • In 1952 the world's first transatlantic helicopter crossing was completed
    • In 1957 the world's first remotely piloted vehicle was created
    • In 1982 the first transatlantic helicopter crossing was completed, 5100 miles
    • 1992 Venezuela to Spain, the flight was the longest over ocean flight.
    • Okay, now that you know a little bit about helicopter history let us move on to helicopter concepts.
  • 3. Table of Words
    • Advancing blade
    • Retreating blade
    • Blade stall
    • NOTAR
    • Tilt rotor
    • Torque
    • Collective
    • Cyclic
    • Skids
    • Translation
    • Swash plate
    • Yaw
    • Hover
    • Tail rotor
    • Main Rotor
    • Tandem rotor
  • 4. Blade
    • Retreating blade
    • The blade that moves the opposite direction as the aircraft.
    • Advancing blade
    • The blade that is moving the same direction as the aircraft.
  • 5. Blade
    • Retreating blade
    • Advancing blade
  • 6. Blade stall
    • When a blade is no longer providing lift.
    • The rotor blades traveling away from the direction of flight enter a stalled condition.
    • Solved by adding flex in the blade
  • 7. NOTAR
    • Is an acronym for No Ta il R otor
    • Anti-torque system
  • 8. Tilt rotor
    • A tilt rotor helicopter combines the vertical lift capability of a helicopter with the speed and range of a turboprop airplane.
  • 9. Torque
    • Torque is a rotation or a twist
  • 10. Collective
    • Controls the pitch angle of all the main rotor blades
  • 11. Cyclic
    • Controls the helicopter’s movement forward, backwards, and sideways.
  • 12. Skids
    • The things on witch a helicopter rests
  • 13. Translation
    • The movement of the helicopter. On the horizontal plane
  • 14. Yaw
    • Yaw is the helicopters ability to rotate about a vertical axis
  • 15. Hover
    • A helicopter is hovering if it is in nearly stationary flight
  • 16. Tail Rotor
    • The tail rotor is used like a small propeller, to pull against torque reaction and hold the helicopter straight.
    • If you spin a rotor using an engine, the rotor will rotate, but the engine and the helicopter will try to rotate in the opposite direction
  • 17. Main Rotor
    • A helicopter's main rotor is the most important part of the vehicle. It provides the lift that allows the helicopter to fly, as well as the control that allows the helicopter to move laterally, make turns and change altitude.
  • 18. Tandem Rotor
    • In a tandem rotor helicopter, you have no tail rotor. Another main rotor rotating in the opposite direction of the front rotor takes the place of the tail rotor. By spinning in the opposite direction it negates the torque of the front rotor with torque of its own.
  • 19. Sources
    • http://images.google.com
    • http://www.aviation-terms.com
    • http://science.howstuffworks.com/helicopter5.htm
    • http://dictionary.reference.com/
    • http://aerospaceplanes.suite101.com/
    • http://www.helis.com/howflies/prflight.php

×