Common use of Cockpit noise Clause in Contracts

Cockpit noise. At a pressure altitude of 35000 feet and a true Mach number of 0.82 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 not exceed the following values: Guarantee ---------- SPL dB(A) [...***...] SIL dB [...***...] Noise levels will be measured at the Captain's and First Officer's seat position at head level with normal cockpit air conditioning and ventilation in operation.

Cockpit noise. At a pressure altitude of 35000 feet 35,000 ft and a true Mach number of 0.82 0.85 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 not exceed the following values: Guarantee ---------- SPL dB(A) [...***...] ** SIL dB [...***...] ** Noise levels will shall be measured at the Captain's ’s and First Officer's ’s seat position at head level with normal cockpit air conditioning and ventilation in operation.

Cockpit noise. At a pressure altitude of 35000 feet ** and a true Mach number of 0.82 **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 not exceed the following values: Guarantee ---------- SPL dB(A) [...***...] * SIL dB [...***...] * Noise levels will be measured at the Captain's ’s and First Officer's ’s seat position at head level with normal cockpit air conditioning and ventilation in operation.

Cockpit noise. At a pressure altitude of 35000 feet ** and a true Mach number of 0.82 ** 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 not exceed the following values: Guarantee ---------- SPL dB(A) [...***...] * SIL dB [...***...] * Noise levels will be measured at the Captain's ’s and First Officer's ’s seat position at head level with normal cockpit air conditioning and ventilation in operation.

Cockpit noise. At a pressure altitude of 35000 feet ** and a true Mach number of 0.82 ** 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 not exceed the following values: Guarantee ---------- SPL dB(A) [...***...] * * SIL dB [...***...] * * Noise levels will be measured at the Captain's ’s and First Officer's ’s seat position at head level with normal cockpit air conditioning and ventilation in operation.

Cockpit noise. At a pressure altitude of 35000 feet and a true Mach number of 0.82 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 not exceed the following values: Guarantee ---------- SPL dB(A) [...***...] SIL dB [...***...] Noise levels will be measured at the Captain's and First Officer's seat position at head level with normal cockpit air conditioning and ventilation in operation.