Abstract: A duct element configured to be used as a shapeable coupling element in a fluid flow line in any industrial application, for example within a rocket engine. The duct element includes a deformable tubular covering in a form of a bellows including inwardly projecting annular projections; and a protective sleeve including an end segment fastened in the tubular covering and including a free end that projects towards an inside of the tubular covering. The protective sleeve includes a plurality of other segments engaged in part one within another, each of the other segments including at a periphery of an outside surface thereof at least one attachment element fastened to the outside surface and that co-operates with at least one annular projection.

Abstract: The fastener fitting (40) has a first fastener zone (42) for fastening to an element (24) of the deployment mechanism. This fastener fitting (40) has two longitudinal arms (46A, 46B) that extend substantially in parallel and in the same direction from the first fastener zone (42). The free ends of these arms that are remote from the first fastener zone are separate, with each arm being provided with a distinct fastener surface (48A, 48B), these respective fastener surfaces together forming the second fastener zone.

Abstract: A duct element configured to be used as a shapeable coupling element in a fluid flow line in any industrial application, for example within a rocket engine. The duct element includes a deformable tubular covering in a form of a bellows including inwardly projecting annular projections; and a protective sleeve including an end segment fastened in the tubular covering and including a free end that projects towards an inside of the tubular covering. The protective sleeve includes a plurality of other segments engaged in part one within another, each of the other segments including at a periphery of an outside surface thereof at least one attachment element fastened to the outside surface and that co-operates with at least one annular projection.

Abstract: A test bench for a reaction engine including a nozzle having a divergent. The bench includes a mechanism for holding the divergent in position, capable of holding the divergent so that its axis is vertical, and capable of interacting with a downstream portion of the divergent located in the downstream half thereof to limit distortion and/or displacement of this downstream portion. The test bench enables the divergent to remain undamaged even if lateral forces are applied to it during testing.

Abstract: The fastener fitting (40) has a first fastener zone (42) for fastening to an element (24) of the deployment mechanism. This fastener fitting (40) has two longitudinal arms (46A, 46B) that extend substantially in parallel and in the same direction from the first fastener zone (42). The free ends of these arms that are remote from the first fastener zone are separate, with each arm being provided with a distinct fastener surface (48A, 48B), these respective fastener surfaces together forming the second fastener zone.