Trailing sheet assembly.
Disclosed is an air turn (5) for supporting and optionally drying a web (W), the air turn (5) comprising a plurality of air bars (12a,...,12g) having a trailing sheet assembly like an elongated wing type foil (112) with multiple relief holes and with an adjustable web-to-foil gap and angle. The apparatus of the invention allows for the ability to control the air vortex off the lower air turn in an air turn array and to control the pressure between the web (W) and foil (112), thereby eliminating web flutter. <IMAGE>