2006-11-08 04:58:13 · 11 answers · asked by hiitsme 1 in Science & Mathematics ➔ Astronomy & Space
You cannot hear a plane when it is flying at 30,000 feet - it would be like hearing a bus driving in a city 5 miles away. So the only time you hear planes is when they are lower, approaching airports.
All airports operate nightime curfews to keep air traffic noise down. Long haul flights have to be timed to take account of these, even if they overfly some areas at their cruising altitude in the middle of the night.
2006-11-08 05:04:58 · answer #1 · answered by Anonymous · 3⤊ 0⤋
Where did you get that idea from? I can hear the sound of planes flying at night.
2006-11-08 13:00:20 · answer #2 · answered by kja63 7 · 1⤊ 0⤋
I have heard the sound of flying planes at night many, many times. Maybe you aren't paying attention.
2006-11-08 13:48:49 · answer #3 · answered by campbelp2002 7 · 1⤊ 0⤋
The ambient noise during the day obscures many sounds and some of them are flying aircraft!
2006-11-08 15:50:25 · answer #4 · answered by Billy Butthead 7 · 0⤊ 0⤋
Are you awake at night? If not of course you can't hear the plane b/c your asleep...
2006-11-08 13:02:19 · answer #5 · answered by Jaclyn 1 · 1⤊ 0⤋
There are fewer commercial flights at night and you're probably inside or asleep. The noise from them is the same.
2006-11-08 13:00:28 · answer #6 · answered by Gene 7 · 1⤊ 0⤋
Because you are sleeping at night?
Actually, the sound would seem louder at night because there is less ambient noise to interfere.
2006-11-08 13:00:33 · answer #7 · answered by Anonymous · 1⤊ 0⤋
Because you must be asleep at that time... I hear them at night all the time.
2006-11-08 13:00:06 · answer #8 · answered by Anonymous · 1⤊ 0⤋
maybe you don't sleep near an airport? you can hear them at night, too.
2006-11-08 13:00:30 · answer #9 · answered by nemahknatut88 2 · 1⤊ 0⤋
Probably because we're asleep...
2006-11-08 13:00:33 · answer #10 · answered by Anonymous · 1⤊ 0⤋