What is the purpose of a bulkhead in an aircraft?

The purpose of a bulkhead in an aircraft is to divide the cabin interior, which helps in organizing space and creating separate areas for different classes of service or various sections of the cabin such as the galley, lavatories, and seating areas. It acts as a partition that contributes to the overall design and structural integrity of the aircraft's interior. By dividing the cabin, bulkheads also improve passenger flow and provide natural breaks in the seating arrangement, enhancing both passenger comfort and crew efficiency during the flight.

While bulkheads do not enhance fuel efficiency, increase speed, or specifically support in-flight entertainment systems, they play a crucial role in the overall functionality and organization of the aircraft's interior space, making them essential for effective cabin management and safety.