I have no need for a ruling from the FAA. I'm perfectly clear with why airplanes turn. A 20 year career as a fighter pilot tends to clarify that quite nicely. You have now changed your wording to angle of bank being controlled by ailerons. That was my big issue. Teaching students that ailerons control roll (angle of bank) is an important distinction. In your previous post you did say turning, and now you say angle of bank. I have no issue with your wording now. I think the distinction is important if the student is to understand how airplanes fly. Yes, at low G and maintaining the G makes the two things in question, lift and roll, closely related (one to actually make the turn, lift, and the other to point the lift, roll). It is still important to understand how they work and how they are related. To simply teach that ailerons are the primary turn control as you stated earlier is teaching at a rote level. To teach that ailerons control angle of bank as you state below is correct, and to teach why there is a difference moves beyond rote to understanding.
Jim Bair
- If you want a ruling from the FAA Jim, go right ahead and ask for it.
I never said rolling and turning is the same thing,
but I have zero hesitation in saying that they are enormously closely
related.
At least for 99% of airliner flight.
For normal flight we are not limited to "1g flight",
and could easily have 1.4g.
The vast majority of turns done, eg; from base to final and other similar turns,
are done with less than 1.3g. (possibly even less than 1.2g)
The pilot making these turns, in most cases, knows that he will turn by
banking the wing, and that he will bank the wing with the aileron.
There is no need to insult him as a "rote learner".... it's more than likely
that this pilot -does- know that he will control his airspeed while
flying the turn.
And that he will control this airspeed primarily with the elevator.
When the pilot elected to bank the wing to 30° for the purpose of turning,
he then also controlled the bank with the aileron... eg, if the bank
became too great like 33° he would reduce the bank using aileron,
and if he the bank was a tad shallow eg, 27° he would increase it with aileron.
As most pilots know, the rate of turn is determined by two things,
the angle of bank and the airspeed.
But most pilots flying at (say) 60 knots on downwind
are not going to increase their rate of turn onto base by reducing airspeed
to 40 knots. They'd likely just keep their 60 knots.
And if they need to turn more sharply, they will increase the bank
to 40° rather than 30°.
Controlling this angle of bank at 30 or 40 is done with ailerons.
(just like those NASA pilots in the space shuttle did it ;-)
Regards,
Mike
PS: Now let's wait patiently and see if Rich Stossel gets it right. ;-)
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