A pilot begins with three months of intensive formation aerobatic training, starting with relatively simple manoeuvres (such as loops and rolls in echelon or line astern) performed at altitude, and progressing through more complex and demanding ones (such as corkscrews, ripple rolls and rollbacks), close formation line abreast aerobatics (which requires constant fine attention to power and trim settings), and eventually working up to the full six-aircraft display routines. Only when a routine is well-practised at altitude is it brought down in gradual steps to the minimum safe level of . First season pilots fly as Roulettes 2, 3 or 4, while the more experienced pilots fly as Roulettes 5 and 6. Roulette 1 is the team leader, and Roulette 7 flies the spare aircraft, is responsible for public relations, and often provides commentary at flying displays.