Convertible lavatory system for an internal cabin of an aircraft

A method for an aircraft comprising:

• an internal cabin;
• and
• a lavatory system within the internal cabin, wherein the lavatory system is convertible between a standard configuration and an expanded configuration, wherein the lavatory system in both the standard configuration and expanded configuration is configured to be usable, wherein the lavatory system comprises:
• a first lavatory unit;
• and
• a second lavatory unit,
• wherein one or more doors of one or both of the first lavatory unit or the second lavatory unit are moveable between different positions to provide the standard configuration and the expanded configuration,
• the method comprising:
• converting the lavatory system between the standard configuration and the expanded configuration;
• extending one or both of a first door of the first lavatory unit, of the one or more doors, or a second door of the second lavatory unit, of the one or more doors, across a passageway between the first lavatory unit and the second lavatory unit to provide the expanded configuration.

An aircraft comprising:

• an internal cabin;
• and
• a lavatory system within an aft area of the internal cabin, wherein the lavatory system is convertible between a standard configuration and an expanded configuration, wherein the lavatory system in both the standard configuration and expanded configuration is configured to be usable, wherein the lavatory system comprises:
• a first lavatory unit including a first door, and a first toilet within a first internal chamber, wherein the first door is configured to open into the first internal chamber of the first lavatory unit, wherein the first door is moveable between a first closed position in which the first internal chamber is closed in the standard configuration, and a first open position in which the first internal chamber is open in the standard configuration;
• a second lavatory unit including a second door, and a second toilet within a second internal chamber, wherein the second door is configured to open into the second internal chamber of the second lavatory unit, wherein the second door is moveable between a second closed position in which the second internal chamber is closed in the standard configuration, and a second open position in which the second internal chamber is open in the standard configuration;
• a passageway separating the first lavatory unit and the second lavatory unit,
• wherein the passageway leads to an aisle within the internal cabin;
• and
• an end area between a first end sidewall of the first lavatory unit and a second end sidewall of the second lavatory unit, wherein the end area includes a cabinet that retains a trash receptacle, emergency equipment, and a sink,
• wherein one or both of the first door or the second door is configured to extend across the passageway between the first lavatory unit and the second lavatory unit to provide the expanded configuration.