the effects of adverse yaw @ low speed

[NewWings]

Would someone please tell me how or pronound of the effects of adverse yaw as airspeed is reduced? thsx

 

[Raskal]

Interesting question-why do you ask?

Had to think awhile, but the best I could come up with is that adverse yaw itself isn't really changed by speed, but the effects of it (or untoward effects) are. For example, in slow flight adverse yaw is present like any other time, but due to the reduced speed/airflow greater control movements are required to elicit a response from the ailerons, so it might seem like it is more pronounced.

The problem is that in slow flight the aircraft is much closer to the stalling speed, so the possible side effect of adverse yaw is actually stalling the down-aileron wing and putting the aircraft into an uncoordinated and at least partially stalled condition which of course can eventually end up in a spin.

Usually this comes up in the "level the wings with rudder" rule during or close to a stall. Adverse yaw is the reason, and especially in older or certain types of aircraft it is extremely important. Try using different amounts of rudder and aileron during slow flight and eventually the relationship will become apparent.

That answer your question?