Boeing 737 ambient noise during ascent
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Boeing 737 ambient noise during ascent
Hi all,
I have noticed that while the aircraft is ascending, the ambient noise from within the cabin increases, especially around the 20,000ft and onwards mark.
From what I can tell, the engines appear to be at a constant thrust but the noise increases. Is this due to the air getting thinner the higher the aircraft goes?
Cheers
I have noticed that while the aircraft is ascending, the ambient noise from within the cabin increases, especially around the 20,000ft and onwards mark.
From what I can tell, the engines appear to be at a constant thrust but the noise increases. Is this due to the air getting thinner the higher the aircraft goes?
Cheers
Hi Paul,
Possibly the noise of increased airflow as speed increases. I notice changes in cabin noise levels when accelerating or decelerating to/from 250kts below 10000ft, and again when slowing to configure for approach.
Hope this helps.
Possibly the noise of increased airflow as speed increases. I notice changes in cabin noise levels when accelerating or decelerating to/from 250kts below 10000ft, and again when slowing to configure for approach.
Hope this helps.
It would have to be related to pressurisation. IAS reduces as you climb above the mach-changeover point, which means less particles per second banging on the windows and therefore less impact noise. Hence the comment by Rainboe (bragger! ).
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Going from a CI of 35 to a nice low CI of 10 made a lot of differences, flying is relaxing and quiet in the Classic now (except for the screaming of those flying behind us).
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