As the aircraft passes through the shear level, airspeed and lift are lost. The aircraft starts to to sink and drops below the glide path. The pilot sees this as a deviation and corrects with increased pitch and power. However, since there is sufficient altitude to correct, the pilot is able to land safely. Figure 6 illustrates the situation where the shear encounter is farther down glide path.
Reaction time is more critical.
Again, the initial reaction of the aircraft to the shear and the pilot's correction are the same. But, in this case, if the pilot overcorrects and the aircraft goes above the glide alope and airspeed increases sufficiently, there is insufficient altitude to recover, and the aircraft may land long and hot. The case in Figure 7 is the most serious. When the altitude of the encounter is too low to effect a recovery or the shear itself is sufficiently strong to overcome the aircraft performance, the aircraft lands short. A decreasing tail wind has the opposite effect.