What aircraft is silent?

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.

How are some jets silent?

A very low specific thrust (i.e. very high bypass ratio) turbofan is proposed for the aircraft. Engine handling and low jet noise are facilitated by the use of a variable area final nozzle, to rematch the fan. Acoustic treatment in the intake and exhaust ducting minimizes turbomachinery noise.

Is there a silent jet?

The B-2 Spirit stealth bomber has been engineered with low observable technology to reduce its radar and infrared signature, making it hard for the enemy to pick up.

Can jet engines be silent?

Technology developed at Ohio State University may bring about quieter jet engines. Researchers created a silencer technology that creates electrical arcs to control turbulence in engine exhaust airflow — the chief cause of engine noise. These images show the results of lab tests of simulated engine airflow.

Which airplane has the quietest cabin?

The Airbus A380 is considered to have the quietest long-haul cabin in the skies. So much so that pilots have complained of poor sleep because they can hear every baby cry and lavatory flush in their crew rest bunk at the rear of the aircraft.

How do you make a plane quieter?

Adding the aerogel insulation to the engines on a commercial aircraft would reduce noise by up to 80% or 16 decibels.

How are stealth planes quiet?

As with most planes, the B-2’s noisiest component is its engine system. But unlike a passenger jet or B-52, the B-2’s engines are buried inside the plane. This helps muffle the noise. The efficient aerodynamic design helps keep the B-2 quiet as well, because the engines can operate at lower power settings.

Do stealth aircraft make noise?

These engines suck in a small amount of air and accelerate it out the back at high speed to produce thrust. This process tends to be very noisy. For this reason, stealth planes (as well as newer commercial aircraft) use engines that are called high-bypass turbofans.

Will airplanes become quieter?

Have aircraft become quieter over the years? Yes, they have. A lot quieter. Over the past 50 years individual aircraft have reduced their noise impact by 75%.

How much quieter are new planes?

A lot quieter. Over the past 50 years individual aircraft have reduced their noise impact by 75%. Indeed, compared with the first jet aircraft, noise from modern aircraft has been reduced by 97% on departure – a 15 decibel reduction – and 94% on arrival – a 12 decibel reduction (1).