Dutch Roll

Front 1

Is a Dutch Roll a characteristic of a straight-wing aircraft, or a swept-wing aircraft?

Back 1

Swept-wing

Front 2

Do Dutch Rolls usually happen at low speeds or high speeds?

Back 2

Low Speeds

Front 3

What causes a Dutch Roll?

Back 3

It is caused by one wing getting ahead of the other wing - a yaw.

Front 4

What can cause a Dutch Roll?

Back 4

Dutch Rolls can be caused by:
1. Poor rudder control
2. a sideslip caused by turbulence
3. pilot induced by overcontrolling the aircraft

Front 5

What part of an airplane helps to prevent and stop Dutch rolls?

Back 5

a Yaw damper. It functions through the rudder autopilot servo (on all the time) and a control switch to turn the yaw damper on and off.

Front 6

Will an airplane level out from a Dutch Roll itself?

Back 6

At high altitude, yes, it can. At low altitude, no.

Front 7

Explain the forces at work behind a Dutch Roll.

Back 7

If you use too much rudder and the airplane yaws and one wing gets ahead of the other, that wing will produce more lift and climb. Eventually, the aircraft would slip, and the low wing would then produce more lift, and the aircraft would roll back in the opposite direction.

Front 8

What causes a landing dutch roll?

Back 8

Usually caused by a pilot overcontrolling the aileron.

Front 9

What causes a Dutch Roll during climb?

Back 9

improper use of the rudder for directional control in climb-out.

Front 10

How do you stop a Dutch Roll?

Back 10

1. Use the yaw damper at all times.
2. Don't overcontrol
3. Don't fight the rudder.