Was she exerting too much vertical force on the handle, which dissipates the forward thrust?
In many crashes the airplane gyrates (changes direction), with high side and vertical forces, while coming down.
If an individual places too much downward vertical force, or shakes the gates, the ride emergency stops.
The spinnaker generates forces along the three axes, and the vertical force has a great importance for pitching.
A strong vertical force may have lead to some types of damage not seen in previous earthquakes, according to this theory.
They found this in not only the vertical force, but also in the anteroposterior and mediolateral forces.
The vertical forces are absorbed entirely by the steel springs.
It is given in eight-hour segments over two days, with the first day covering vertical forces.
Teeth are constantly subject to both horizontal and vertical occlusal forces.
Twenty-three had signs of "injuries from a vertical force".