Not Smoke, but Vapor | This Time, Footage from the U.S.
On Spirit Airlines flight #NK2628 from Charlotte to New York, operated by an Airbus A321 registered N676NK, vapor formed inside the cabin.Although the incident unsettled passengers, there was nothing to worry about.
The actual cause is quite different ⤵️
What occurred is the basic physics of cloud formation. As pilots prepare for takeoff, the ventilation system is kept on, allowing outside air to enter the cabin. If the incoming fresh air has a certain temperature and humidity, the water vapor (also known as moisture) in the air will reach its dew point when it encounters the cooler environment inside the cabin.
Mark Miller, a professor of atmospheric science at Rutgers University in New Jersey, explains: “The cold air mixing with the warm, humid air in the cabin sinks to the bottom. And if the cabin air contains enough water vapor, as it can on some summer days, a cloud can form. Running the ventilation at the start of the flight is the likely cause.”
Why doesn’t cabin fog appear on every flight❓
Because the reaction requires very hot and humid outside air, cabin fog is most often seen at tropical airports and during the hot summer months.
