A variable area nozzle assembly for an aircraft propulsion system, the variable area nozzle assembly comprising:
- a fixed nozzle structure extending circumferentially about a nozzle axis;
- a translating sleeve assembly including a translating sleeve, the translating sleeve is movably mounted to the fixed nozzle structure, the translating sleeve is translatable along the nozzle axis within the fixed nozzle structure between and to a first axial position and a second axial position;
- a plurality of nozzle segments forming a variable area nozzle extending circumferentially about the nozzle axis, each nozzle segment of the plurality of nozzle segments is pivotably mounted to the translating sleeve, the plurality of nozzle segments includes a first nozzle segment and a second nozzle segment, and the first nozzle segment is circumferentially adjacent the second nozzle segment;
- and
- a plurality of segment hoop locking assemblies including a first segment hoop locking assembly, the first segment hoop locking assembly includes a lock crank, a hoop crank, a first hoop crank receiver, and a second hoop crank receiver, the lock crank is pivotably mounted to the translating sleeve, the lock crank is pivotable about a pivot axis, the hoop crank is connected to the lock crank, the hoop crank includes a first locking aperture and a second locking aperture, the first hoop crank receiver is mounted on the first nozzle segment and disposed within the first locking aperture, the second hoop crank receiver is mounted on the second nozzle segment and disposed within the second locking aperture, and the lock crank is pivotable about the pivot axis to configure the hoop crank in a first locking condition and a second locking condition such that:
- with the translating sleeve in the first axial position, the lock crank in a first pivot position relative to the pivot axis positions the hoop crank to configure the hoop crank in the first locking condition to restrict circumferential movement of the first nozzle segment relative to the second nozzle segment;
- and
- with the translating sleeve in the second axial position, the lock crank in a second pivot position relative to the pivot axis positions the hoop crank to configure the hoop crank in the second locking condition to restrict circumferential movement of the first nozzle segment relative to the second nozzle segment;
- wherein the variable area nozzle extends axially between and to an upstream nozzle end and a downstream nozzle end, the upstream nozzle end forms a throat cross-sectional area of the variable area nozzle, the downstream nozzle end forms an outlet cross-sectional area of the variable area nozzle, and translation of the translating sleeve along the nozzle axis varies a cross-sectional area of the throat cross-sectional area and the outlet cross-sectional area;
- and
- wherein the fixed nozzle structure includes a downstream structure end, in the first axial position the translating sleeve positions the variable area nozzle in a retracted position with the downstream nozzle end disposed axially upstream of the downstream structure end, and in the second axial position the translating sleeve positions the variable area nozzle in an extended position with the downstream nozzle end disposed axially downstream of the downstream structure end.