| 摘要 |
A retrofit secure cockpit door is intended primarily for a passenger aircraft. The door is bullet-resistant and fire retardant and is provided with a patented Z-bar lock which will withstand a force of approximately 1,000 pounds and thus will allow the door to be opened safely, so that the pilot or copilot may receive a coffee or other item from the flight attendant. The upper portion of the door has an elongated, vertically-oriented bullet-resistant transparent window. This window is always substantially aligned with the center of the main aisle in the passenger compartment, regardless of the configuration of the bulkhead separating the cockpit from the passenger compartment, and regardless of the disposition of the cockpit door mounted loin the bulkhead. The lower portion of the secure cockpit door has a horizontally-oriented slot for receiving a meal tray from the flight attendant. This slot is a bullet-resistant plate mounted on the inside of the door and secured thereto by a manually-releasable lock. The bulkhead surrounding the door is retrofitted with the bullet-resistant, flame-retardant material. |
