In elevator control, to minimize the average waiting time or journey time of passengers.

The elevator controls showed four levels, basement through third.

With his left hand, Socks managed the elevator control.

The 36-unit building was built in the late 1930's, and he said the elevator controls were updated in recent years.

This is due to the fact that the elevator control on a helicopter works differently between hovering and moving forward.

The elevator control was rather light and could not be used harshly.

The lack of elevator control also prevents the ability to "pull back" during turns to prevent altitude loss and speed increase.

Even in good weather, the elevator control required the attention of two strong men.

Aileron and elevator control is affected through use of a side stick.

One hand on the elevator control, I ask Tyler if he's ready.