Slipping and Skidding - Dumb Question.
Sunny The Book Stick and Rudder by Langwiesche ? or like spelling,,gives detailed explanations for the basics in the days of old when the rudder bar got plenty of use tp produce a balance turn.
Been in Tiger ? the old Turn and Bank will show it all very distinctly. Might have to wait until its warmer !!
Been in Tiger ? the old Turn and Bank will show it all very distinctly. Might have to wait until its warmer !!
You don't need to get caught up in all the centre of gravity vs centre of lift stuff. Just use your feet to keep the aircraft aligned with the relative airflow. Like so. (Skip to 5:50 for the key point if you don't want to sit through the whole thing.)
Join Date: Aug 2015
Location: Cloncurry, Australia.
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Sunny,
Here is a simple demonstration to help with your understanding of slipping and skidding. The important thing about this demonstration is that it makes no mention of technical concepts such as lift, balanced forces, etc. It doesn't even involve aeroplanes.
When you drive to work tomorrow morning, take your cup of coffee, but before departing, drink it down to a level where the cup is half full. Then, whilst driving, hold the cup with one hand. As you go around corners, you will have to give the cup a bank angle so as to keep the coffee level relative to the orientation of the cup. You will find that the higher the speed in the turn, or the sharper the turn, the more steep the bank angle must be.
Going round a corner, the cup should be banked, and if banked at the correct angle, the liquid level will be level with the cup edges, so's to speak.
You can think of the bank angle of the cup as akin to the bank angle of the plane. And when the liquid is level relative to the cup, the "ball" is centered. The "skid" situation is thus very easy to see and grasp. The "slip" situation, too, but I'll leave that to you!
Good luck!
Here is a simple demonstration to help with your understanding of slipping and skidding. The important thing about this demonstration is that it makes no mention of technical concepts such as lift, balanced forces, etc. It doesn't even involve aeroplanes.
When you drive to work tomorrow morning, take your cup of coffee, but before departing, drink it down to a level where the cup is half full. Then, whilst driving, hold the cup with one hand. As you go around corners, you will have to give the cup a bank angle so as to keep the coffee level relative to the orientation of the cup. You will find that the higher the speed in the turn, or the sharper the turn, the more steep the bank angle must be.
Going round a corner, the cup should be banked, and if banked at the correct angle, the liquid level will be level with the cup edges, so's to speak.
You can think of the bank angle of the cup as akin to the bank angle of the plane. And when the liquid is level relative to the cup, the "ball" is centered. The "skid" situation is thus very easy to see and grasp. The "slip" situation, too, but I'll leave that to you!
Good luck!
