A Mobile Aircraft Secondary Barrier Cart which includes a main housing, with at least two retractable and expandable rigid barriers or a soft non-porous curtain that rise up from the main housing and encompass the entire forward galley/main cabin entrance and locks into place. The rigid barriers, when present, generally wedge into a female channel surrounding forward galley/main cabin entrance to hold the rigid barriers in placed. The purpose of the Mobile Aircraft Secondary Barrier Cart and the included curtain is to prevent unauthorized individuals from entering the Flightdeck when it is unlocked during flight.

A Mobile Aircraft Secondary Barrier Cart which includes a main housing, with at least two retractable and expandable rigid barriers or a soft non-porous curtain that rise up from the main housing and encompass the entire forward galley/main cabin entrance and locks into place. The rigid barriers, when present, generally wedge into a female channel surrounding forward galley/main cabin entrance to hold the rigid barriers in placed. The purpose of the Mobile Aircraft Secondary Barrier Cart and the included curtain is to prevent unauthorized individuals from entering the Flightdeck when it is unlocked during flight.

The Aircraft Secondary Barrier Cart includes a main housing, with at least two retractable cables with metallic safety-hooks at the ends that connect to the two female loops behind each bulk-head. When deployed, the two cables hold the barrier cart in place. The two retractable cables are connected to a ratcheting system to stabilize and strengthen the barrier cart's stability after deployment. The ratcheting system includes a release lever to disengage the two main-housing cables before stowage. The barrier cart includes a folding-barrier with elastic and polymer safety-hooks sewn in. When the curtain or net gets expanded, its safety-hooks attach to several female loops riveted into the upper portion of the forward galley entrance.

The Aircraft Secondary Barrier Cart includes a main housing, with at least two retractable cables with metallic safety-hooks at the ends that connect to the two female loops behind each bulk-head. When deployed, the two cables hold the barrier cart in place. The two retractable cables are connected to a ratcheting system to stabilize and strengthen the barrier cart's stability after deployment. The ratcheting system includes a release lever to disengage the two main-housing cables before stowage. The barrier cart includes a folding-barrier with elastic and polymer safety-hooks sewn in. When the curtain or net gets expanded, its safety-hooks attach to several female loops riveted into the upper portion of the forward galley entrance.

A secondary cockpit barrier is disclosed herein. The secondary cockpit barrier includes a cylindrical cartridge having an outer wall and an interior compartment, an internal roller bar disposed in the interior compartment of the cylindrical cartridge, a receiver stanchion including a plurality of guide holes, a vertical bar configured to engage the receiver stanchion, a barrier having a first edge coupled to the internal roller bar and a second edge coupled to the vertical bar, the barrier configured to extend through an opening in the cylindrical cartridge and from the cylindrical cartridge to the receiver stanchion, a plurality of latch guides coupled to the vertical bar, each of the plurality of latch guides configured to engage a guide hole of the plurality of guide holes, and a lock coupled to the receiver stanchion, the lock configured to secure the barrier in a deployed position.

An aircraft includes a flight deck including a flight deck door configured to be moved between an open position and a closed position, a first monument, second monument, and a secondary barrier door moveably secured between the first monument and the second monument. The secondary barrier door is configured to fold into a stowed position in which a path to the flight deck is open, and unfold into a deployed position in which the path to the flight deck is closed.