Saturday, March 17, 2012

Light-Sport Aircraft Yahoo group RE: Why does it TURN (not just slide sidewards) when you bank w/ no





> Somehow the bank must be creating more drag on the lower wing (or less
  >on the raised wing) creating the turning force.
,


Please see this:
http://www.splung.com/content/sid/2/page/circular

Go down to the two pictures of an airplane
and see the small arrow labeled "F"
on the second airplane picture.
That "F" is what causes the airplane to turn.
That "F" represents the force which we call
"the horizontal component of lift".
It only exists when the airplane is banked.

To some extent, the airplane did "slide" sideways.
Imagine the pilot was flying North and making a turn to West.

At the start of the turn his course was 360°.
After banking the craft, this "slide" causes the course to change to 355°.
Continued banking causes a slide from 355 to 350,
then 350 to 345,
and so on and so on,
until he levels the wing and continues flight on a course of 270°.
Mike

-------------

Oh ratz   ;-)   I can already sense the knives being sharpened.

The "slide" above -could- be defined by someone else
in -their- preferred way,
and then my usage would of course be wrong.

My usage above is more like when a politician "slides to the left",
meaning he moves towards the left.
Imagine you are walking  around an athletic track......
you make continuous small slides (or moves) to the left...
changing your course from 360 to 359 to 358 etc.

Bottom-line doesn't change.....
We turn by banking the wing and we bank the wing primarily with ailerons.
There are other controls used (primarily) for "speed and altitude"
control, namely "elevator and throttle".


Mike


.



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