Download presentation
Presentation is loading. Please wait.
Published byDana Stafford Modified over 10 years ago
1
Principles of Flight Chapter 6 – Helicopters
2
Introduction A helicopter generates both lift and thrust by using its rotor blades rather than wings. Blades are just wings which spin round on a central axis.
3
Lift To generate more lift the blades must be pitched to increase the angle of attack. Pilots control known as the Collective pitch control.
4
Horizontal Flight The thrust is provided by tilting the disc in the direction required Pilots control called cyclic pitch control or stick.
5
Horizontal Flight The thrust is provided by tilting the disc in the direction required Pilots control called cyclic pitch control or stick.
6
Horizontal Flight The thrust is provided by tilting the disc in the direction required Pilots control called cyclic pitch control or stick.
7
Horizontal Flight The thrust is provided by tilting the disc in the direction required Pilots control called cyclic pitch control or stick.
8
Torque Reaction Is the force that tries to make the fuselage spin in the same direction as the blades. Counteracted by using a tail rotor to push the fuselage in the opposite direction. By altering the pitch of the tail rotor blades it can yaw the aircraft. Helicopters with 2 blades – each rotor spins in different directions.
9
Torque Reaction
11
Controls 4 Controls Collective Pitch – On left hand side, pulls up to increase lift and vice versa. Hand Throttle – On the collective pitch stick, twists to give more power to rotor. Cyclic Pitch – Stick between legs, left to go left, forward to go forward etc. Tail Rotor - Feet Pedals, Right to yaw right and vice versa.
Similar presentations
© 2025 SlidePlayer.com. Inc.
All rights reserved.