Aircraft lavatory
![A Business Class lavatory with a window, on board an Air Canada Boeing 777-200LR (2011)](/Images/godic/202412/20/First_class_Lavatory_with_Window1130.jpg")
![A crewman on board a World War 2 Royal Air Force Vickers Wellington bomber. The container to the right of him is the aircraft's](/Images/godic/202412/20/Vickers_Wellington_-_Royal_Air_Force_Bomber_Command,_1939-1941._CH4781130.jpg")
![A toilet unit for one of the Airbus A320 family of passenger aircraft, prior to installation (2005)](/Images/godic/202412/20/Airbus-Bordtoilette1130.jpg")
![The toilets of a McDonnell Douglas MD-80 being serviced](/Images/godic/202412/20/Aircraft_lavatory_service1130.jpg")
An aircraft lavatory is a small room on an aircraft with a toilet and sink.
An early aircraft fitted with a toilet was the 1921 Caproni Ca.60, However, it crashed on its second flight and never saw service. The Handley Page H.P.42 airliner, designed in 1928, was fitted with toilets near the center of the aircraft.