Cabin. At a pressure altitude of […***…] and a true Mach number of […***…] in straight and level flight in still air under ISA conditions, the guaranteed A-weighted Sound Pressure Level (SPL) and the Speech Interference Level (SIL) shall be as follows: HAL - A320 Family HAL A321 PA – LA 9B […***…] *** Confidential Treatment Requested […***…] Noise levels shall be measured […***…].
Cabin. At a pressure altitude of [****] the guaranteed A-weighted Sound Pressure Level (SPL) and the Speech Interference Level (SIL) shall be as follows: Guarantee [****] SPL [dB(A)] [****] SIL [dB] [****] [****] SPL [dB(A)] [****] SIL [dB] [****] Noise levels shall be measured at a height of [****] above the passenger compartment floor on the aisle center lines in the passenger seated area.
Cabin. At a pressure altitude of [*CTR*], shall be as follows: Guarantee [*CTR*] SPL [dB (A)] [*CTR*] SIL [dB] [*CTR*] [*CTR*] SPL [dB (A)] [*CTR*] SIL [dB] [*CTR*] Noise levels shall be measured at a height of [*CTR*] above the passenger compartment floor on the aisle center lines in the passenger seated area.
Cabin. During ground operation, with the APU and the air conditioning in normal operation and passenger doors open or closed, the guaranteed A-weighted Sound Pressure Level (SPL) and the Speech Interference Level (SIL) in the passenger seated area shall be as follows: Guarantee Passenger seated area SPL[dB(A)] * * SIL [dB] * *
Cabin. The standard cabin seating arrangement consists of a pilot and co-pilot’s seat and two rear seats. A fifth seat will be offered as an option. The cabin length is 11.5ft (3.5 m) from the front pressure to the aft pressure bulkhead. There is a recessed center aisle to facilitate entering the two front seats. The cabin volume is 170 cubic feet (4.8 m3).
Cabin. At a pressure altitude of ** and a true Mach number of ** in straight and level flight in still air under ISA conditions, the guaranteed A-weighted Sound Pressure Level (SPL) and the Speech Interference Level (SIL) shall be as follows: Guarantee SPL [dB(A)] ** SIL [dB] ** Noise levels shall be measured at a height of ** above the passenger compartment floor on the aisle center lines in the passenger seated area.
Cabin. At a pressure altitude of 35000 ft and a true Mach number of ** in straight and level flight in still air under ISA conditions, the guaranteed A-weighted Sound Pressure Level (SPL) and the Speech Interference Level (SIL) will be as follows: Guarantee SPL [dB(A)] ** SIL [dB] ** LA 8C — 4 of 9 USA — Airbus A330 Purchase Agreement EXECUTION PRIVILEGED AND CONFIDENTIAL **Confidential Treatment Requested. Noise levels will be measured at a height of ** above the passenger compartment floor on the aisle center lines in the passenger seated area.
Cabin. At a pressure altitude of [*CTR*], the guaranteed A-weighted Sound Pressure Level (SPL) and the Speech Interference Level (SIL) shall be as follows: CT1001520_LA11I_AAL_A320Family_EXECUTION LA11I - 6 of 11 Guarantee [*CTR*] SPL [dB(A)] [*CTR*] SIL [dB] [*CTR*] [*CTR*] SPL [dB(A)] [*CTR*] SIL [dB] [*CTR*] Noise levels shall be measured at a height of [*CTR*] above the passenger compartment floor on the aisle center lines in the passenger seated area.
Cabin. During ground operation, with the APU and the air conditioning in normal operation and passenger doors open or closed, the guaranteed A-weighted Sound Pressure Level (SPL) and the Speech Interference Level (SIL) in the passenger seated area shall be as follows: SPL [dB(A)] ** SIL [dB] ** Noise levels shall be measured at a height of 1.0 m above the passenger compartment floor on the aisle center lines in the passenger seated area.
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 A321-211 CFM 56-5B-3 ENGINES Interference Level (SIL) will be as follows: - the A-Weighted SPL will *** 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.
