![]() ![]() The noise emitted from these tests can be disruptive for nearby residents or sensitive activities. ![]() These engine tests are undertaken outside at various locations, depending on factors like wind direction, runway use and aircraft type. On-wing aircraft engine testing is any engine test performed while the engine is attached to the aircraft. Following overnight maintenance, the engines must be tested before aircraft go back into operation early the following morning. Regular maintenance is essential to a safe commercial aviation industry in New Zealand. There’s a reason why workers in those industries are provided hearing protection.Engine testing occurs during the night as plane maintenance can't occur during the day when aircraft are flying. We’re talking inside factories, near trains, or near other heavy equipment. You don’t see people hanging out by jet engines revving up for takeoff, and even airport security forces typically wear hearing protection.įor prolonged periods of time, noises 70 dB and above should be avoided at all costs. In bursts, we can tolerate up to 120 dB before we risk potentially permanent damage to our eardrums and hearing.Ībove 150 dB, you get into the realm of bursting your lungs or other sensitive organs, and most things louder than that are theoretical or highly controlled. The average person isn’t typically exposed to sounds above 100 dB on a regular basis, but those who are risk damage to their hearing. Theoretically loudest undistorted sound possible at sea levelĪs we see from this table, jet engines are among the upper limit of the loudest sounds on Earth, with only stun grenades measuring louder. Quietest room on Earth (Microsoft facility) Let’s take a look at some common sounds and how they match up against a jet engine in volume. Jet engines are incredibly loud, but how loud are they compared to some other quiet and loud sounds? Still very loud, as it turns out. Image Credit: PublicDomainPictures, Pixabay Jet Engine vs. Keep this in mind as you read on to the next section, where we list common sounds from quietest to loudest in decibels. So, when you’re looking at different decibel values, every decibel makes a big difference. By extrapolation, 100 dB is roughly 10,000 times louder than 10 dB. For instance, 20 dB is 10 times louder than 10 dB, and 100 dB is 10 times louder than 90 dB. ![]() In layman’s terms, every 10 decibels increases in volume 10 times. What makes decibels different from other measurements is that they scale logarithmically instead of linearly. Let’s check out how a jet engine fares against some of the other loudest sounds on Earth.ĭecibels are a way of measuring how loud a sound is. From about 100 feet away, the same sound would be between 140 dB and150 dB, which is still enough to cause permanent hearing damage.įew other sounds compare in decibels to the power of a jet engine, but some come surprisingly close. Not that you would hear it-the human eardrums can only withstand up to 150 dB before they rupture. In decibels (dB), a typical jet engine weighs in at roughly 160dB. If you’ve ever heard a jet start, you know they’re ear-piercingly loud. ![]()
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