In any case, a really low cross-country flight is a wonderful experience. It is the only time one can get the feeling of an aeroplane’s terrific speed. The ground streaks past under the wings unbelievably fast. Different coloured patches of sand flow by; it’s like running your hand across a patchwork quilt. You lift your machine gently upwards to clear hummocks, and then ease her down again the other side to stay low, low, low. As one approaches the target, the adrenalin starts to pump, giving a tingling sensation between the shoulder-blades, and maybe some sweat trickles down.