Due to the change in lift coefficient accompanying extension of the flaps, to maintain the lift constant it would be necessary to
- raise the nose.
- lower the nose.
- keep pitch attitude constant.
Explanation
Extending flaps raises the lift coefficient, so at the same speed and attitude the wing produces more lift than required. To keep total lift constant the angle of attack must be reduced, which means lowering the nose; otherwise the aircraft would balloon upward.
Jeff2015 asking:
Explain please
Community Comments (1)
D
dimky Posts: 514 27.07.2015 / 22:30
Hi.
Extending flaps you are increasing lift of the aircraft. Lift is affected by man factors, including coefficient of lift. To maintain the lift after extending flaps (increased Cl) you have to decrease something, airspeed for example. But airspeed is not given as an answer. To change Cl you can also change your angle of attack by lowering the nose. This will decrease Cl and as result you will maintain your lift at constant level. Hope that helps.
Extending flaps you are increasing lift of the aircraft. Lift is affected by man factors, including coefficient of lift. To maintain the lift after extending flaps (increased Cl) you have to decrease something, airspeed for example. But airspeed is not given as an answer. To change Cl you can also change your angle of attack by lowering the nose. This will decrease Cl and as result you will maintain your lift at constant level. Hope that helps.
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