``Then, if the Pilot is green, my chance will come,'' said
the Maximum Angle of Incidence. ``For if the Angle is
increased over the Best Climbing Angle, the Drift will rush
up; and the Speed, and with it the Lift, will, when my
Angle is reached, drop to a point when the latter will be no
more than the Weight. The Margin of Lift will have
entirely disappeared, and there we shall be, staggering
along at my tremendous angle, and only just maintaining
horizontal flight.''

``And then with luck I'll get my chance,'' said the Drift.
``If he is a bit worse than green, he'll perhaps still further
increase the Angle. Then the Drift, largely increasing, the
Speed, and consequently the Lift, will become still less,
i.e., less than the Weight, and then--what price pancakes,[[3]]
eh?''


[[3]] Pancakes: Pilot's slang for stalling an aeroplane
and dropping like a pancake.


``Thank you,'' from Efficiency, ``that was all most
informing. And now will you tell me, please, how the
greatest Speed may be secured?''

``Certainly, now it's my turn,'' piped the Minimum Angle
of Incidence. ``By means of the Elevator, the Pilot places
the Aeroplane at my small Angle, at which the Lift only
just equals the Weight, and, also, at which we shall make