Material Could Make Aircraft as Quiet as a Hairdryer

Professor Michele Meo say suspending the aerogel within honeycomb structures inside a plane's engines could significantly cut noise.

An incredibly light new material that can reduce aircraft engine noise and improve passenger comfort has been developed at the University of Bath (UK). The aerogel weighs just 2.1 kg per cubic meter, making it the lightest sound insulation ever manufactured.

The aerogel’s meringue-like structure makes it extremely light, meaning it could act as an insulator within aircraft engine nacelles with almost no increase in overall weight. The material is currently being further optimized to offer improved heat dissipation, offering benefits to fuel efficiency and safety.