Movable cover for a proprotor nacelle

An aircraft, comprising:

• a fixed nacelle disposed on a wing of the aircraft, the fixed nacelle comprising a nacelle opening;
• a proprotor pylon disposed on the wing and rotatable relative to the fixed nacelle between a substantially horizontal position and a non-horizontal position, wherein rotation of the proprotor pylon to the non-horizontal position exposes the nacelle opening;
• and
• a movable cover disposed on at least one of the wing and the fixed nacelle, said movable cover comprising a plurality of cover slats that are movable between a closed position where at least a portion of the cover slats collectively form a protective cover in front of the nacelle opening when the proprotor pylon is positioned in the non-horizontal position and a stowed position where at least a portion of the plurality of cover slats are stowed;
• wherein the plurality of cover slats are interlinked and movably coupled to a plurality of support tracks;
• wherein the plurality of support tracks are disposed on at least one of the following:
• the fixed nacelle, the nacelle opening, and/or the wing.