CFN – Pilot Dan Baz is answering your flying questions here on the Cornwall Free News.
If you have a question about flying you can email Captain Dan or post below.
What happens to the waste from toilets and sinks ?Question asked by Christopher
The waste water from washrooms and liquids from galley sinks drain overboard. These liquids exit through drain masts on the bottom of the airplane. The drain masts extend approximately 10 to15 cm’s below the skin of the fuselage. The liquids evaporate or almost instantly turn to ice crystals, depending on the outside air temperature. The air temperature at airplane cruising altitudes can be as low as minus 70 degrees Celsius. To prevent these liquids from freezing onto the drain masts, the masts are electrically heated.
A bit more about Captain Dan:
Captain Dan Baz enrolled in Flight School at the age of 16.
He has completed studies in Aircraft Engineering and Master of Business Administration. He has been at the controls of many different types of aircraft, from single engine Cessnas to large intercontinental jets on global routes.
Over the last four decades he has flown thousands of hours up in the blue sky.
Have a question for the Captain ? Send it to Captain Dan Baz firstname.lastname@example.org Every week a question from the readers will be selected and answer posted in this column.