Aircraft Lavatory Notched Wall Design for Space Optimization
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Commercial aircraft lavatories are typically cramped, making it difficult for passengers to move comfortably due to their limited width, which conflicts with the need to maximize passenger seating capacity.
Innovation Solution
The lavatory enclosure is repositioned away from the central aisle and rows of seats to the rear of the aircraft, where it is configured with an internal wall having a notch that increases the lateral width, providing more usable space while maintaining a small footprint, and positioned adjacent to a cross-aisle for improved access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the lavatory enclosure width is increased to improve passenger comfort and movement space, then the lavatory usability is improved, but the aircraft seat capacity is reduced
Solution Approach 1:
The internal wall is designed with an intermediate section that protrudes laterally into the galley space, creating a notch that increases lavatory width in the lateral dimension without increasing the longitudinal footprint. This dimensional approach allows improved lavatory usability while maintaining the same floor space allocation, thus not reducing seat capacity.
2Productivity
If the lavatory is repositioned to the rear of the aircraft to optimize space usage, then the overall aircraft efficiency is improved, but the access to the lavatory becomes less convenient
Solution Approach 1:
The rear-positioned lavatory is made accessible through multiple pathways: passengers can reach it via the cross-aisle at the rear or by traveling along the central aisle. This multi-access design provides universal access from different locations, maintaining convenience while optimizing overall aircraft space efficiency.
3Area of moving object
If the internal wall is positioned closer to the centerline to maximize lavatory width, then the lavatory space is increased, but the galley space is reduced
Solution Approach 1:
The internal wall features a localized intermediate section that protrudes laterally only in the region above the toilet, creating a notch that increases lavatory width where most needed. The rest of the wall maintains its position to preserve galley space, providing local optimization without compromising overall galley functionality.
4Productivity
If the lavatory footprint on the floor is minimized to increase seating capacity, then the seat count is increased, but the lavatory becomes more cramped
Solution Approach 1:
The lavatory compensates for its small floor footprint by increasing width in the lateral dimension through the notched internal wall design. The intermediate section creates additional lateral space above the toilet area, allowing the lavatory to feel less cramped while maintaining a minimal longitudinal and lateral footprint on the aircraft floor.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
An internal wall (86) in an aircraft cabin separates a lavatory (72, 74) and a galley (34) of the aircraft. The internal wall (86) has an intermediate notch that increases a lateral width dimension of the lavatory (72, 74) above the notch and thereby improves the spatial environment of the lavatory.