When specifying cooling equipment, engineers are faced with myriad decisions affecting performance and layout. One critical consideration is the noise emitted. As population density rises in major ...
Secondly, while the aircraft is taking off and landing, noise levels measured 100 m (330 ft) from the vertipad stayed below 65 dBA over more than 20 VTOL tests, with the aircraft rising to or ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results