Instead of being helpless in such circumstances, his previous period of tuition stands him in good stead, and he is able to run over his motor with an expert eye, and so discover the little defect which may be causing all the trouble.

Apart from the "Gnome," there are other makes of engine in the aviation school to which the pupil may direct his attention, with good results. Thus the novice acquires a general knowledge regarding aeroplanes and their motive power, and prepares himself for the second stage of his tuition.

This resolves itself into a series of flights, which end in his taking control of an aeroplane himself. But, first of all, he takes his place in the passenger-seat of a military machine, and is piloted round the aerodrome by an officer-instructor of proved skill. For his first few flights, the beginner merely sits in the machine, and accustoms himself to the novel experience of being in an aeroplane.

This first acquaintance with flight generally proves confusing. The engine of an aeroplane makes a din which is trying to the novice. Then the pace of the machine, when it moves across the ground, and the rapidity with which it soars in flight, are confusing, also.

It is, therefore, a sound policy to allow a beginner to make several trips with an experienced officer, before he attempts to control a machine himself. By so doing, the pupil has an opportunity of getting over his first bewilderment, and contrives to be in a fairly cool and collected frame of mind when his turn comes to assume control of the levers.

After several trial journeys have been made, and the novice is no longer embarrassed by the strangeness of his position, he is allowed, by his instructor, to exercise temporary command over the aeroplane while it is in flight. This is accomplished by means of a dual control; a set of levers are before the pilot, and another in front of the pupil.

The former, after warning his charge to be ready, relinquishes his hold upon the levers, and the pupil takes charge of the machine. The instructor, of course, keeps a keen eye upon the behaviour of the machine; should the pupil make an error, the pilot is able to rectify it before there is any chance of an accident.

By this admirably practical system, a pupil can be led to a satisfactory state of proficiency without risk, either to himself or to his instructor. After he has controlled the machine, for a spell, during straight flights, he is given the opportunity of making a turn in the air.

This operation requires the exercise of skill and judgment. Apart from moving the rudder, or rudders, which send the machine round, the pilot needs to operate his "ailerons," or wing-warping device, as the case may be, in order to "bank" the machine over, and so facilitate the turning movement.

As soon as he shows sufficient skill in controlling an aeroplane, while with a pilot, the pupil is given an opportunity of flying by himself. As a rule, his previous tuition has been so valuable to him that he finds little difficulty in performing a solo flight, and so prepares himself for the obtaining of his certificate from the French Aero Club.