3 ms·

I cannot imagine how unbelievably loud and damaging having a 777 fly 75 feet above my house would be.

jakub_g 5y ago
I live on the coast, 15km from major airport and sometimes in the summer planes fly directly over my apartment, including really huge ones, just a few storeys above (I'd say 100-150 ft, maybe more). With open windows, it's madly loud. With closed windows it's a loud but somehow tolerable.
- Toutouxc 5y ago
  Perhaps an order of magnitude more? You'd expect an airliner at about 4000 ft at 15 km from the airport, assuming it's trying to land. It's also illegal to fly lower than 1000 ft above inhabited areas in most of the world.
  - jakub_g 5y ago
    The airport is sea level, I live on a little hill in a 3-floor building and the airplanes cruise over my head at what feels like 15th-20th floor max.
  - ashtonkem 5y ago
    Typically sound follows the inverse square rule, so the difference between the same plane at 1000 feet should be a 1/169th (1/13^2) of the noise at 75 feet. So two orders of magnitude.
ghaff 5y ago
Planes taking off from Boston Logan can fly as low as 300 feet over the neighboring town of Winthrop--and average about 700. I've kayaked in the area and you basically have to stop talking every few minutes when a plane takes off. Arriving flights are even a bit lower (although not as loud).
- easton 5y ago
  There was an episode of Cheers about this, where Carla buys a house extremely cheap and then believes it is haunted. After sleeping a night there, she finds out it’s because it is close to where planes land at Logan Airport, which calms her nerves.
  - ghaff 5y ago
    Ha. Don't remember that. I was kayaking with a long ago girlfriend and we were in the parking lot for the Winthrop boat launch. And I do remember we got into some conversation with a local and HE TALKED VERY LOUDLY. Which was something we joked about for a time. You could actually land your boat at the end of Logan airport from there. But I assume if you were to do so, serious people with serious weaponry would pay you a visit very quickly.
- ashtonkem 5y ago
  Following up from another thread, excluding reflections and what not, a plane at 75 feet should be 16x louder than the same plane with the same throttle settings at 300 feet. Sound follows the inverse square rule, where a change in distance of X reduces the perceived noise to 1/x^2. Since 300/75 = 4, you get a factor of 16 in perceived difference. Yikes.
quickthrower2 5y ago
I have trees that tall near me. I assume near airports they prune back tall trees though.

I live on the coast, 15km from major airport and sometimes in the summer planes fly directly over my apartment, including really huge ones, just a few storeys above (I'd say 100-150 ft, maybe more). With open windows, it's madly loud. With closed windows it's a loud but somehow tolerable.

Toutouxc 5y ago
Perhaps an order of magnitude more? You'd expect an airliner at about 4000 ft at 15 km from the airport, assuming it's trying to land. It's also illegal to fly lower than 1000 ft above inhabited areas in most of the world.
- jakub_g 5y ago
  The airport is sea level, I live on a little hill in a 3-floor building and the airplanes cruise over my head at what feels like 15th-20th floor max.
- ashtonkem 5y ago
  Typically sound follows the inverse square rule, so the difference between the same plane at 1000 feet should be a 1/169th (1/13^2) of the noise at 75 feet. So two orders of magnitude.

ghaff 5y ago

Planes taking off from Boston Logan can fly as low as 300 feet over the neighboring town of Winthrop--and average about 700. I've kayaked in the area and you basically have to stop talking every few minutes when a plane takes off. Arriving flights are even a bit lower (although not as loud).

easton 5y ago
There was an episode of Cheers about this, where Carla buys a house extremely cheap and then believes it is haunted. After sleeping a night there, she finds out it’s because it is close to where planes land at Logan Airport, which calms her nerves.
- ghaff 5y ago
  Ha. Don't remember that. I was kayaking with a long ago girlfriend and we were in the parking lot for the Winthrop boat launch. And I do remember we got into some conversation with a local and HE TALKED VERY LOUDLY. Which was something we joked about for a time. You could actually land your boat at the end of Logan airport from there. But I assume if you were to do so, serious people with serious weaponry would pay you a visit very quickly.
ashtonkem 5y ago
Following up from another thread, excluding reflections and what not, a plane at 75 feet should be 16x louder than the same plane with the same throttle settings at 300 feet. Sound follows the inverse square rule, where a change in distance of X reduces the perceived noise to 1/x^2. Since 300/75 = 4, you get a factor of 16 in perceived difference. Yikes.

quickthrower2 5y ago

I have trees that tall near me. I assume near airports they prune back tall trees though.