Can you hear a plane at 20 000 feet?

Yes, depending on the type of plane, which would determine how loud it is and what the frequency of its sound output was, in normal cruising flight.

What is acceptable noise level?

A safe or acceptable noise level for constant exposure is 68 db or below. Hearing damage can occur when exposed to a constant background noise of 80 – 90 db. City traffic is typically 85 db.

How the aircraft noise can be measured?

The loudness of sound is generally measured in terms of decibels (dB). ‘A-weighted decibels’ (dBA) are often used in measurements of aviation noise. This adjusts decibel values to take account of the frequencies that people are most sensitive to, as the human ear is less sensitive to sounds at low and high frequencies.

How far away from an airport should you live?

All other things being equal, a home you buy within a 3 1/2-mile radius of an airport should go for 2\% to 5\% less than a similar home seven to eight miles from the airport, said David H.

What is the loudest sound ever recorded?

The loudest sound in recorded history came from the volcanic eruption on the Indonesian island Krakatoa at 10.02 a.m. on August 27, 1883. The explosion caused two thirds of the island to collapse and formed tsunami waves as high as 46 m (151 ft) rocking ships as far away as South Africa.

How loud is a jet aircraft taking off?

On the ground, aircraft engines, takeoff preparations, and braking are sources of noise on aircraft. A study of noise on Airbus A321 aircraft reported levels of 60-65 decibels (dBA) before takeoff; 80-85 dBA during flight; and 75-80 dBA during landing.

Can you hear airplanes at altitude on the ground?

So yes you can hear airplanes at altitude on the ground. As has been said already, of course you can hear them, in the right conditions.

How far away from SeaTac can you hear Planes?

80 miles out from SeaTac and guessing 6 miles away on horozontal axis we seldom can hear commercial airlines over ambient noise, a freeway about two miles away. But what’s even more fun is being outside at nighttime. When I’m stargazing, it’s amazing how much easier it is to hear an airplane, since the ambient noise is so low.

How close to the ground can an airplane fly under IFR?

When operating under IFR, between the surface and an altitude of Flight Level (FL) 290, no aircraft should come closer vertically than 1,000 feet.

How to fly safely at high altitudes without pressurization?

Two things are essential for safe high-altitude flight without pressurization: an appropriately high index of suspicion and a finger oximeter. Your threat-o-meter should go up with altitude, from attentive above about 10,000 feet to concerned at 15,000 and then fully spring-loaded from the lowest flight levels.