Aircraft having thrust vectoring for switchably providing upper surface
blowing. The aircraft generally includes a wing and an engine. The engine can be
rotatably supported to supporting structure to allow the engine to be controllably
rotated relative to the wing, and/or the engine can include a thrust vectoring
nozzle. The engine's thrust vectoring capabilities allow the exhaust flow to be
controllably vectored to switch on or off upper surface blowing depending on the
aircraft's phase of operation. During a first phase, the exhaust flow can be vectored
to flow across the upper wing surface to provide upper surface blowing to augment
lift. During a second phase, the exhaust flow can be discharged generally downstream
or rearwardly. The engine is positioned relative to the wing such that the exhaust
flow does not provide upper surface blowing during the second phase.
