Airflow in helicopter

  • Thread starter vishnu2315
  • Start date
  • #1
Why control surfaces are not used below rotor in helicopters?
 

Answers and Replies

  • #2
russ_watters
Mentor
20,123
6,640
Why control surfaces are not used below rotor in helicopters?
Because the rotors are the control surfaces.
 
  • #3
Baluncore
Science Advisor
8,479
3,193
Why control surfaces are not used below rotor in helicopters?
Because the lift on the rotor moves over the full length of the rotor so the control surfaces would need to be as big as the rotors. Rotor blades are dynamic in flight, they can rise and fall significantly. The rotor blades would collide with the control surfaces with catastrophic results.
 

Related Threads on Airflow in helicopter

  • Last Post
Replies
23
Views
9K
  • Last Post
Replies
13
Views
1K
  • Last Post
Replies
3
Views
3K
  • Last Post
Replies
4
Views
2K
  • Last Post
Replies
9
Views
2K
  • Last Post
Replies
2
Views
765
  • Last Post
Replies
1
Views
3K
  • Last Post
2
Replies
32
Views
10K
Replies
5
Views
4K
  • Last Post
Replies
23
Views
9K
Top