The steering action of the skis may be best understood by considering the blackened parts of each pair (in which the steering effect is neutral) as the sides of a boat, and the light point and heel of each pair as a bow and stern rudder respectively. It will then be seen that the boat is in each case helped to turn to the left by the action of both rudders, or that if it can in some way be made to turn to the left without the help of the rudders, they will at least not hinder it—than which, as a matter of fact, little more can be said in the case of the Telemark; though in the Stemming turn there is a strong steering action while the skis remain in this position, and a distinct, if weak, one in the Christiania.

The principal factors, then, in the control and steering of the skis are the edging or flattening of them, the distribution of the weight on them, and the placing of them in certain positions in relation to each other. How these various factors interact during the different swings, turns, &c., will be explained more fully in subsequent chapters, but before closing this one I want to give some explanation of how a turn on skis depends as to its character on whether the ski at the moment of beginning the turn is running straight down the hill or across it, on whether the speed is high or low, and the slope steep or gentle, and also on the quality of the snow.

The accompanying diagram shows the successive positions assumed by a ski (the leading one, the other is not shown) during a turn to the right, under various conditions.

The line passing through the middle of the skis shows the curve on which the runner himself travels during the turn; the line ending in a double arrow shows the sort of curve on which he would travel if the ski were able to cut round without side-slip as a skate does. It will be seen that if there were no side-slip he would in every case move steadily to the right of the line of his original course (shown by a dotted line in the diagram), but that, on account of the side-slip, the line on which he travels sometimes moves only slightly to the right of that line, even when the turn itself is a sharp one, that sometimes it moves to the left of it and then recrosses it, and that sometimes it remains entirely on the left of it throughout the turn. To understand how, according to the conditions, the curve of the runners actual course varies, is a great help to the balance, for at first one’s instinct is to balance the body as if the ski were cutting round like a skate, i.e. to lean inwards too much, which, of course, inevitably results in a fall.

In every case the turn is supposed to be made as sharply as the conditions allow. It will be seen that on hard snow the runner, when travelling fast, will skid almost directly sideways for some distance from the spot where he actually finishes turning.

Fig. 26.

a, b, c, d are turns made while the runner is travelling straight downhill, or, which amounts to the same thing, while he is running on the level at the end of a downhill slide. e, f, g, h are turns made while the runner is descending a slope obliquely. a to f are what are known as uphill turns, which bring the runner to a standstill; g and h are downhill ones, which enable him to join one tack to another when descending a hill in zigzags.

If anyone who has done no ski-ing at all reads this chapter, he will, no doubt, think it very complicated; but if, while actually learning to ski, and especially while learning the turns, he looks through it from time to time, I think he will soon understand whatever is not quite clear, and will, I hope, find that it helps him to correct his mistakes and to understand and remember his instructions.