Cabin Noise. At a pressure altitude of 35,000 ft and a Mach number of M=0.78 in still air under ISA conditions, the guaranteed A-Weighted Sound Pressure Level (SPL) and the Speech Interference Level (SIL) will be as follows: - the A-Weighted SPL will not exceed *** over the whole seating area. - the SIL will not exceed *** along the front 40% of the passenger compartment and will not exceed *** along the remaining 60% of the passenger compartment length.
Appears in 3 contracts
Sources: Purchase Agreement (Us Airways Inc), Airbus A319/A320/A321 Purchase Agreement (Us Airways Inc), Airbus A319/A320/A321 Purchase Agreement (Us Airways Inc)