Which part of the rotor disc produces the most lift during forward flight?
- The mid-span portion.
- The front portion.
- The rear portion.
Explanation from PART66Online
Because of flapping and the phase lag between aerodynamic input and blade response, the corrected lift distribution in forward flight peaks over the front of the disc, where blade flapping brings the angle of attack to its highest effective value. The advancing and retreating sides are balanced by flapping, leaving the front portion of the disc generating the most lift.
J
jan.grindheim asked · 8 Jul 2021
Is the answer correct?
Community Comments (2)
J
Jordi
1 Sep 2021
yes it is it is also called advancing blade and it produces the most lift.
J
jan.grindheim
30 Sep 2021
For forward flight the rotor disc must be tilted forward, so the aft portion of the disc should be producing more lift to achieve this (move cyclic forward).
Please Sign In to post a comment.
More discussions in 12. Helicopter aerodynamics, structures and systems
- In straight and level flight, the forward air speed is controlled by the
- A helicopter tail rotor is fitted to
- How do the rotors turn on a co-axial rotor system?
- The intermediate gearbox is
- A cargo compartment in which there is a separate approved smoke or fire detector system to give warning and means to shut off the ventilating airflow to the compartment is a
- Lift generated by a blade is proportional to the