Turn dynamics

Hi Jose,

When I formulated the scenario, I broke it down into two phases.

The first phase was related to the forces perpendicular to the relative
wind, or the action of pulling back on the stick and increasing your
angle of attack enough to meet the increased lift requirement, with no
change in airspeed. This essentially satisfied lift = 2*weight. I
then looked at the changing forces parallel to the relative wind
(thrust/drag) in the second phase.

The increase in drag due to the higher load factor would slow you, and
you'd soon find yourself pitched down and descending, followed by a
restauration of the initial airspeed flown before and during the turn
(with no change in power, that is). As I understand, one could apply
additional power to maintain altitude and airspeed in the turn though.

My questions pertained to the second phase, and regarded the increase
in drag/power required and their effect on the maintenance of altitude.

Perhaps we're saying the same thing? (and perhaps not...in which case
I'd appreciate another round of clarification)

Thanks for your input.
Alex


Jose wrote:
you pull back on the stick to augment the
angle of attack, maintaining airspeed. Everything's good so far?

No, not really. When you pull back on the stick, you will lose
airspeed. In order to maintain airspeed, you will need power. If you
also apply power at the same time as you pull back on the stick (at the
same time you are in the 60 degree banked turn) then you can maintain
airspeed and altitude.

Once you get your head around the need for power at this point, the
answers to the rest of your questions should become clearer.

Jose
--
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