Washington: The United States is working to develop helicopters that do not make noise during their flight, for which the U.S. military is working with various experts.
According to U.S. media, the U.S. military is studying the sound characteristics of vertical take-off aircraft and multi-propeller helicopters to identify helicopters’ use during efforts to design vertical take-off aircraft and helicopters.
Helicopter noise is caused by air interaction with the propeller blades of the helicopters and the front propeller blades.
Ducom and the U.S. Army Research Laboratory, collaboration with Uber and Austin University of Texas, are studying the acoustic properties of vertical take-off and landing-capable aircraft using several small propellers distributed in their EcoSkelton.
Experts hope that it will be possible to eliminate their noise one day, and they will also be used on the battlefield.
The basic idea is that small wings’ sound is different from that of large wings because different physical mechanisms produce the sound.
The research team is also studying a certain number of propellers in helicopters called stacks.