Morphing control surface transition

An aircraft, comprising:

• a transition section forming a continuous contour across a gap between a pair of structures, the transition section including:
• at least one rib mounted within the gap is pivotable in response to a relative deflection of the pair of structures;
• a tip mounted to an end of the rib which is rotatable about a longitudinal axis of the rib;
• and a skin at least partially covering the tip and being deformable during pivoting of the rib;
• the tip rotates about the longitudinal rib axis into substantial alignment with the skin in response to pivoting of the rib.

A method of controlling airflow, comprising the steps of:

• installing a transition section between a pair of structures, the transition section including at least one pivotable rib having a tip mounted to an end of the rib, the tip being at least partially covered by a skin;
• deflecting the pair of structures relative to one another;
• pivoting the at least one pivotable rib during relative deflection of the pair of structures;
• deforming the skin elastically during pivoting of the rib;
• and
• rotating the tip about a longitudinal axis of the rib into substantial alignment with the skin during deformation of the skin in response to pivoting of the rib.

A method of forming a transition section subject to fluid flow in use, comprising the steps of:

• installing at least one rib between a movable structure and at least one of a fixed structure or an additional movable structure;
• mounting the rib such that the rib is pivotable about a rib pivot axis;
• mounting a tip to an end of the rib such that the tip is rotatable about ft longitudinal axis of the rib;
• and covering at least a portion of the tip with a skin such that the tip rotates into substantial alignment with the skin in response to a relative deflection between the moving structure and the fixed or the additional movable structure.