Your SlideShare is downloading. ×
0
Chapter 9
Chapter 9
Chapter 9
Chapter 9
Chapter 9
Chapter 9
Chapter 9
Chapter 9
Chapter 9
Chapter 9
Chapter 9
Chapter 9
Chapter 9
Chapter 9
Chapter 9
Chapter 9
Chapter 9
Chapter 9
Chapter 9
Chapter 9
Chapter 9
Chapter 9
Chapter 9
Chapter 9
Chapter 9
Chapter 9
Chapter 9
Chapter 9
Chapter 9
Chapter 9
Chapter 9
Chapter 9
Chapter 9
Chapter 9
Chapter 9
Chapter 9
Chapter 9
Chapter 9
Chapter 9
Chapter 9
Chapter 9
Chapter 9
Chapter 9
Chapter 9
Chapter 9
Chapter 9
Chapter 9
Chapter 9
Chapter 9
Chapter 9
Chapter 9
Chapter 9
Chapter 9
Chapter 9
Chapter 9
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

Chapter 9

440

Published on

Chapter 9 PPT for level 6 students

Chapter 9 PPT for level 6 students

0 Comments
1 Like
Statistics
Notes
  • Be the first to comment

No Downloads
Views
Total Views
440
On Slideshare
0
From Embeds
0
Number of Embeds
0
Actions
Shares
0
Downloads
0
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. Chapter 9<br />Tail Rotors<br />
  • 2. Tail rotors are required for single main rotor helicopters<br />To eliminate tail rotors there are 4 other main rotor configuration<br />Coaxial<br />Tandem<br />Side by side<br />Intermeshing<br />These systems are much more complex<br />Single main &amp; tail rotor system is the best compromise.<br />Tail rotor must have pitch change, and flap axis<br />Positive and negative pitch<br />Controlled by foot pedals<br />
  • 3. Operation<br />
  • 4.
  • 5. Other Configurations<br />Intermeshing<br />Fenestron <br />or <br />Ducted Fan<br />N<br />O<br />T<br />A<br />R<br />
  • 6.
  • 7. Other Configurations<br />Tandem<br />Co-axial<br />Side by side<br />
  • 8.
  • 9. Other Configurations<br />Ramjet<br />
  • 10. Must be driven by transmission – always driven<br />Due to tail boom flexibility T/R shaft must be able to move in and out<br />Hanger bearings are used to support shaft and provide alignment<br />Alignment is important for reducing vibration<br />It may be necessary to divert T/R D/S if T/R is mounted on top of vertical stab.<br />An IGB would be used in this case<br />IGB changes direction but not speed.<br />
  • 11. Tail Rotor Driveshaft<br />
  • 12. TGB – change direction and speed<br />Bell 47 extension tube<br />Universal at one end<br />Splined for TGB at other end<br />Attaches and supports TGB<br />One piece aluminium alloy<br />
  • 13. Tail Rotor Gearbox<br />
  • 14.
  • 15. Tail Rotor Gearbox<br />
  • 16.
  • 17. Tail Rotor Gearbox<br />
  • 18.
  • 19. Tail Rotor<br />
  • 20.
  • 21. Tail Rotor Hub<br />
  • 22.
  • 23. Tail Rotor Controls<br />
  • 24.
  • 25. Tail Rotor Driveshaft<br />
  • 26.
  • 27. Dampener<br />
  • 28.
  • 29. TGB<br />
  • 30.
  • 31. TGB<br />
  • 32.
  • 33. Tail Rotor<br />
  • 34.
  • 35. Tail Rotor Control<br />
  • 36.
  • 37. Tail Rotor Driveshaft<br />
  • 38.
  • 39. Tail Rotor Driveshaft Couplings<br />
  • 40. AS 350<br />
  • 41.
  • 42.
  • 43.
  • 44.
  • 45.
  • 46.
  • 47.
  • 48.
  • 49.
  • 50.
  • 51.
  • 52.
  • 53.
  • 54.
  • 55.
  • 56.
  • 57.
  • 58.
  • 59.
  • 60.
  • 61.
  • 62.
  • 63.
  • 64.
  • 65.
  • 66.
  • 67.
  • 68.
  • 69.
  • 70.
  • 71.
  • 72.
  • 73.
  • 74.
  • 75.
  • 76.
  • 77.
  • 78.
  • 79.
  • 80.
  • 81.
  • 82.
  • 83.
  • 84.
  • 85.
  • 86.
  • 87.
  • 88.
  • 89.
  • 90.
  • 91.
  • 92.
  • 93.
  • 94.
  • 95.
  • 96.
  • 97. Pitch change ring<br />Perform during no wind conditions<br />

×