Re: Mechanics of Elevator Trim. In Detail.

Lost and Found

Found:

To the village that has lost its idiot: we've found him.





On Jun 9, 11:18 pm, Le Chaud Lapin <jaibudu...@[EMAIL PROTECTED]
> wrote:
> On Jun 9, 6:19 pm, "Robert M. Gary" <N70...@[EMAIL PROTECTED]
> wrote:
>
> > On Jun 9, 11:31 am, Le Chaud Lapin <jaibudu...@[EMAIL PROTECTED]
> wrote:
>
> > > On Jun 9, 1:06 pm, "Robert M. Gary" <N70...@[EMAIL PROTECTED]
> wrote:
> > > I think if the book said more about how it worked, there would be no
> > > misunderstanding.
>
> > I think if you walked up to an actual airplane there would be no
> > misunderstanding.
>
> My first experience with trim control was neither with a book or a
> plane, but with the instructor.  I think there are a lot of things
> that students are assumed to know that they do not, which can be
> frustrating, as there is no difficult in the concepts, but the
> ommission of facts, which hurts more than helps. It is the
> instructor's choice to determine how deep s/he should delve into the
> mechanics of flight.
>
> One instructor might say, "Move trim wheel up or down to relieve
> pressure on yoke."
>
> Another might say, "Trim wheel is connected to a trim tab on elevator,
> often located on one side of elevator only, and air moving across
> elevator results in aerodynamic force vector on tab that acts on
> elevator to position elevator so that point of equilibrium is reached,
> and such force being sufficient that you no longer need the yoke to
> position the elevator.  As you can imagine, speed and orientation of
> aircraft will have some effect on force...and therefore position of
> elevator.  Also, if only one tab, force applies  asymetrically to
> aircraft...etc."
>
> Both these explanations are true, but one of them eliminates the need
> for $30 product (or $30,000 aircraft) to know what is going on.
>
> -Le Chaud Lapin-