Some Things to Be Learned.
He will soon learn that certain movements of the
steering gear produce certain effects on the rudders. If,
for instance, his machine is equipped with a steering
wheel, he will find that turning the wheel to the right
turns the aeroplane in the same direction, because the
tiller is brought around to the left. In the same way
he will learn that a given movement of the lever throws
the forward edge of the main plane upward, and that the
machine, getting the impetus of the wind under the concave
surfaces of the planes, will ascend. In the same
way it will quickly become apparent to him that an opposite
movement of the lever will produce an opposite
effect—the forward edges of the planes will be lowered,
the air will be "spilled" out to the rear, and the machine
will descend.
The time expended in these preliminary lessons will
be well spent. It would be an act of folly to attempt to
actually sail the craft without them.