Скачать или смотреть Unlock Airplane Lavatory Door From The Outside.

Unlock Airplane Lavatory Door From The Outside.

Can You Unlock An Airplane Lavatory Door From The Outside?
Today, we're going to reveal a hidden secret of airplane lavatories. Imagine this scenario: you're on a flight, and you spot that red 'occupied' sign on the lavatory door. You might assume it's impossible to open from the outside, right? But what if we told you there's a way? Behind that lavatory sign on the exterior, there's a concealed external lock mechanism, designed for emergencies and passenger safety. While passengers typically lock the lavatory door from the inside, flight attendants and crew members have access to this mechanism, enabling them to unlock the door from the outside when necessary. This ingenious design ensures that in rare emergencies, such as someone needing assistance inside or a malfunctioned door, the lavatory door can be opened externally.

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Note: "The appearance of U.S. Department of Defense (DoD) visual information does not imply or constitute DoD endorsement."


ADDITIONAL READINGS:
An aircraft lavatory or plane toilet is a small room on an aircraft with a toilet and sink. They are commonplace on passenger flights except some short-haul flights. Aircraft toilets were historically chemical toilets, but many now use a vacuum flush system instead.

History
Early aircraft fitted with a toilet include the 1919 Handley Page Type W, the 1921 DH.29 Doncaster and the 1921 Caproni Ca.60.[1] However, the Caproni 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.[2] The British Supermarine Stranraer flying boat, which first flew in 1934, was fitted with a toilet that was open to the air. When the lid was lifted in flight, airflow produced a whistling noise that led to the aircraft being nicknamed the "Whistling Shithouse".[3] The Short Sunderland flying boat, which saw military service from 1938 to 1967, was comparatively well equipped, carrying a porcelain flush toilet.

During World War II, large bomber aircraft, such as the American Boeing B-17 Flying Fortress and the British Avro Lancaster, carried chemical toilets (basically a bucket with seat and cover, see bucket toilet); in British use, they were called "Elsans" after the company that manufactured them. These often overflowed and were difficult to use. The intense cold of high altitude required crews to wear many layers of heavy clothing, and the pilot might have to take violent evasive action with little warning. They were unpopular with bomber crews, who would avoid using them if at all possible. Bomber crew members sometimes preferred to urinate into bottles or defecate into cardboard boxes, which were then thrown from the aircraft.

Small aircraft
During World War II, smaller aircraft such as fighters were fitted with devices known as "relief tubes". These consisted of a funnel attached to a hose that led to the outside and which could be used for urination. These devices were awkward to use and could become frozen and blocked in the intense cold of high altitude.

Such devices are still sometimes fitted to modern military aircraft and small, private aircraft although they are difficult for women to use. Male glider pilots undertaking extended soaring flights may wear an external catheter that either drains into a collection bag or is connected to tubing that dumps the urine to the outside. If the latter approach is used, care must be taken when designing the system so that the stream of urine does not make contact with other parts of the aircraft, where it may eventually cause corrosion.

Passenger aircraft
Lavatories per passenger provided aboard aircraft vary considerably from airline to airline and aircraft to aircraft. On board North American aircraft, including low-cost, charter, and scheduled service airline carriers, the normally accepted minimum ratio of lavatories to passengers is approximately one lavatory for every 50 passengers. However, in premium cabin and business cabins, passengers may have access to multiple lavatories reserved primarily for their use. These ratios of lavatories to passengers vary considerably, depending upon which airline is being used with some first class passengers having one lavatory for every 12 passengers. Additionally, many of the larger long-haul airlines elect to equip their aircraft with larger lavatories for this particular group of passengers willing to pay higher fares.


Cutaway model of a lavatory module for passenger aircraft
Smaller commuter aircraft and regional aircraft designed for short-haul flights may not be equipped with lavatories. Recently, many regional airlines in North America have commenced the trend of eliminating the refilling of hand-washing basin potable water tanks in order to reduce weight, fuel consumption, and service costs.[citation needed] To facilitate sanitation, disinfectant hand-wipes are provided.