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The Series 100 has a maximum capacity of 39, the Series 200 has the same capacity but offers more powerful engines, the Series 300 is a stretched, 50-seat version, and the Series 400 is further stretched to a maximum of 90 passengers. [42] Models delivered after 1997 have cabin noise suppression and are designated with the prefix "Q". [43]
Design: 400 km/h (249 mph) Continuous operation: 400 km/h (249 mph) Current operation: 350 km/h (217 mph) 556: 10 business, 28 first and 518 standard 576: 10 business, 28 first and 538 standard 4M4T 10.14 MW (13,598 hp) August 15, 2016 CR400BF–C 576: 10 business, 28 first and 538 standard 541: 10 business, 28 first and 503 standard
However, the finally released High Com system, which was marketed by Telefunken since 1978, worked as a broadband 2:1:2 compander, achieving almost 15 dB of noise reduction for low [10] and up to 20 dB RMS A-weighted for higher frequencies, [19] [3] [10] [15] reducing the noise power down to 1% [15] while avoiding most of the acoustic problems ...
The Airbus A400M Atlas [nb 1] is a European four-engine turboprop military transport aircraft.It was designed by Airbus Military, now Airbus Defence and Space, as a tactical airlifter with strategic capabilities to replace older transport aircraft such as the Transall C-160 and the Lockheed C-130 Hercules. [3]
Noise and print-through are interrelated, and directly depend on the size of oxide particles. A decrease in particle size invariably decreases noise and increases print-through. The worst combination of noise and print-through occurs in highly irregular formulations containing both unusually large and unusually small particles. [43]
Mains hum, electric hum, cycle hum, or power line hum is a sound associated with alternating current which is twice the frequency of the mains electricity.The fundamental frequency of this sound is usually double that of fundamental 50/60 Hz, i.e., 100/120 Hz, depending on the local power-line frequency.
A Dolby noise-reduction system, or Dolby NR, is one of a series of noise reduction systems developed by Dolby Laboratories for use in analog audio tape recording. [1] The first was Dolby A, a professional broadband noise reduction system for recording studios that was first demonstrated in 1965, but the best-known is Dolby B (introduced in 1968), a sliding band system for the consumer market ...
IEC 61400-11:2012+AMD1:2018 CSV Acoustic noise measurement techniques (Consolidated Version) IEC TS 61400-11-2:2024 Acoustic noise measurement techniques - Measurement of wind turbine sound characteristics in receptor position; IEC 61400-12:2022 Power performance measurements of electricity producing wind turbines - Overview