Why are Airbus planes quieter?

The engines on most jet aircraft you will fly on these days are almost all of the high-bypass variety. In addition, the advent of geared turbofan engines has resulted in quieter engines. Geared turbofans can be found most commonly on the Airbus A220 and A320neo series, and on the Boeing 737 MAX.

Why is the A320 better than the 737?

To start with cabin width, the Airbus A320 family offers a wide cabin, with the passenger seat fraction wider than Boeing 737’s (by about 7 inches). A wider cabin aisle means more room for passengers and more passenger comfort while traveling. The fuselage curve of B737 is inward and narrower than the curve of Airbus.

Why do Airbus engines sound different?

The A320 series is known for having a distinct whine, essentially caused by the pressure equalisation vents for the fuel tanks, which are open to the external airflow.

Which aircraft is the quietest?

The quietest commercial aircraft in service today are likely the Airbus A220 and Embraer E2. These would be followed by the A320neo and 737MAX. While you might be able to tell the noise level difference between these two groups, it is unlikely you could tell the difference within the group without looking.

Which is faster 737 or A320?

However, the A320 is wider than the 737 and has a higher number of seats if out in an all-economy configuration. The 737 is 0.009 Mach faster than the A320, despite this, the A320-200 actually has a higher range than the 737-800.

Which is safer A320 or B737?

Both the A320 and B737 are extremely safe aircraft. The Boeing 737 has an accident rate of approximately 1 in 16 million flight hours whilst the A320 is very slightly lower at 1 in 14 million flight hours. To put it in perspective, you are far more likely to be involved in a car crash than a plane crash.

Is the A320 loud?

Actually all turbofan engines do that noise if you are referring to a low buzzing sound, not just A320. It highly depends one where you are sitting. If you sit right next to the engine, particularly the few rows ahead of the engine, you will hear it the loudest.

Why does the A320 bark?

Where does the barking dog noise come from? Flight controls, brakes and steering systems (among others), are powered by hydraulic systems on aircraft such as the A320 or Boeing 737. Those hydraulic systems operate under pressure, some 3,000 psi. It’s the PTU that makes the barking noise.

Are jet engines getting quieter?

Aircraft engines today are significantly quieter, thanks to dramatic advancements in aircraft engine design. Examples of engine design improvements that reduce noise include high bypass ratio turbofan, acoustic liner technology and the use of mixers and chevrons.

Are private jets quieter than commercial?

Typically, private jets are quieter than commercial planes both inside and out. The engines on a commercial plane are much more powerful and can generate sound levels up to 140 decibels and can be heard from miles away on the ground.

How loud is a Boeing 737 compared to an Embraer A320?

However, because of the logarithmic scale used in reporting decibels, this means the Boeing is about 50\% “louder” than the Embraer aircraft. Similarly, the 737 is 0.9 decibels louder than the A320, or about 10\% “louder”.

Is the Airbus A350 quieter than the Boeing 787?

Airbus claims the A350 is “five decibels quieter than competing aircraft [the Boeing 787], and up to nine decibels quieter towards the front of the cabin. This means four times less noise.” This, of course, is without Airbus actually releasing their data.

How loud is the Boeing 787 when taking off?

One reviewer claimed the Boeing 787 registered 90 decibels on takeoff measured with an iPhone app, which is 10 decibels lower than the aircraft in the Journal study referenced above (or about half as loud). A United Airlines Boeing 787-9 takes off from LAX, April 2016. The chevrons on the engine are evident.

How can we reduce the noise of aircraft?

The study notes that “ [a]ircraft noise has been significantly reduced by evolution of noise-reducing engine technology (e.g., Pratt and Whitney PurePower Geared TurboFan engine reduces noise footprint by 75\%) combined and with the introduction of newer aircraft models and airframes with a lower noise profile (e.g., Boeing 787 and Airbus A380).”