  In this article, we study the behaviour of a looped string launched in
ambient air using motorised wheels. We show that the loop, once it reaches its
stationary state, is either in the pulley or the air-lifted state. The
transition between these two distinct states occurs at the so-called takeoff
speed. We prove that this speed differs from one string to another based on its
characteristics. However, it is independent from the loop's length and its
initial launch angle. This speed indeed corresponds to the threshold where air
drag starts compensating for the weight of the string.
