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 A321 PA – LA 9B […***…] *** Confidential Treatment Requested […***…] Noise levels shall be measured […***…].
Cabin. At a pressure altitude of [****] shall be as follows: [****] 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*] the guaranteed A-weighted Sound Pressure Level (SPL) and the Speech Interference Level (SIL) shall be as follows: [*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 will be as follows: SPL [dB(A)] ** SIL [dB] ** 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. 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 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.
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 [*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. 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: ** Confidential Treatment Requested. USA — Amended and Restated Airbus A320 Family Purchase Agreement LA 8F-1 — 15 of 22 EXECUTION PRIVILEGED AND CONFIDENTIAL Front 40% of passenger seated area SPL[dB(A)] ** SIL [dB] ** Remaining 60 % of passenger seated area 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. ** Confidential Treatment Requested. USA — Amended and Restated Airbus A320 Family Purchase Agreement LA 8F-1 — 16 of 22 EXECUTION PRIVILEGED AND CONFIDENTIAL
Cabin. At a pressure altitude of ** and a true Mach number of ** 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: SPL [dB(A)] ** SIL [dB] ** 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.
