airstream
- n a relatively well-defined prevailing wind
- n the flow of air that is driven backwards by an aircraft propeller
- At this critical speed, the airstream, accelerated by crowding over the curved surfaces, reaches at certain spots the speed of sound.
- The airstream passing through the turbine generated enough pressure to activate the part of the hydraulic system that controls the flight spoilers, rudder and ailerons.
- The combination of the wings' shape and the skydiver's position modifies the airstream to create the lift needed to float forward.