An Unmanned Aerial Vehicle (UAV) comprising a light weight noise reducing shroud to attach to the UAV, and a light weight noise reducing propeller to attach to the UAV, 5 wherein the shroud and/or the propeller are configured to reduce, absorb and/or diffuse sound waves. Also a shroud, and an aircraft. Figure la
A SHROUD FOR AN AIRCRAFT
2022-05-19
Patent
Electronic Resource
English