Patent ID: 7174704

Claim:
A nozzle for a gas turbine engine having a longitudinal axis, comprising: a centerbody extending rearward along said longitudinal axis, said centerbody including a throat section of increased diameter relative to the remainder of said centerbody; an inner shroud surrounding said centerbody, said inner shroud having an outer surface and an inner surface, said inner surface including at least a middle section of decreased diameter relative to the remainder of said inner surface, said inner shroud being selectively moveable along said longitudinal axis in forward and aft directions relative to said centerbody; an outer shroud surrounding said inner shroud, said outer shroud having a forward edge, an aft edge, and an inner surface extending from said forward edge to said aft edge, said outer shroud being movable in forward and aft directions relative to said center body; and means for independently selectively moving said inner and outer shrouds in forward and aft directions relative to said centerbody, wherein said centerbody, said inner surface of said inner shroud, and said inner surface of said outer shroud collectively define a fluid flowpath through said nozzle.