rrrrrrrrrr-sound of airbus/boeing engines
rrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr sound is typical of high bypass turbo fan engines. the rrrrrrrrrrrrrrrrrrrrrrrrr is the sound from the compressors and fan. by-passing causes less shear at the rear end hence less jet noise; compare the modern aircraft 767 etc to a 727 or 732. the latter has very little by-pass so the jet noise becomes the dominant noise.
I believe that this thread was about the noise signature in the air heard by the passengers or those on the ground in front of the engine.
Join Date: Mar 2006
Location: Ormond Beach
Age: 49
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I witnessed a C-5B (aka BED) take off today. It was surprisingly quiet, made a vacuum cleaner-like whine. Then I noticed taxpayers' money coming out the exhaust. Must have a silencing effect, methinks.
