Common use of Cabin Noise Clause in Contracts

Cabin Noise. 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) will not exceed the following values, considering leather seats are part of the cabin lay-out.

Cabin Noise. At a pressure altitude of ** 35,000 ft and a true Mach number of ** 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, considering leather seats are part of the cabin lay-out.

Cabin Noise. 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) will not exceed the following values, considering leather seats are part of the cabin lay-out.