Well, we have finished with take-off velocity, which covers both take-off speed and angle. Take-off height (level 3 of the model, see Figure 2.5) is mainly dealt with by critical feature 4 (CF4), which has now covered flight distance from level 2 of the long jump model –although we still need to look at the landing component of the take-off height, which we will do in the next paragraph–leaving us with the take-off and landing distances. From Figure 2.4, it should be obvious that the take-off distance is the distance of the centre of mass in front of the take-off foot at take-off minus the distance of the take-off