The less noisy heli
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Join Date: Oct 2005
Location: Far East
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Oh,I'm sorry
)
Then AS355,S76.May be you have compare chart for them?
May be I have to refine my question
Which of modern commercial helicopters have minimum noise level in flight ?
Sorry,I\'m not native Eng speaker
Then AS355,S76.May be you have compare chart for them?
May be I have to refine my question
Which of modern commercial helicopters have minimum noise level in flight ?
Sorry,I\'m not native Eng speaker
In the <3000kg class for twins, I believe the newest MD900 has just stolen the crown from the EC135 as the quietest european helicopter.[Before the MD takeover from a non european management].
EC-120
EC-135
MD-900
MD-520N
Are all pretty quiet. From reading about the subject I´mled to believe that the MD-900 is a bit quieter than the EC-135 when using the US mode of measuring overflight noise at 1000´ with severeal sensors.
You mention "heavy horses"? Did you mean in the SA-365 & S-76 class?
I would think that the EC-155 would be the winner as far as noise is concerned in that class, but that´s just a guess!
EC-135
MD-900
MD-520N
Are all pretty quiet. From reading about the subject I´mled to believe that the MD-900 is a bit quieter than the EC-135 when using the US mode of measuring overflight noise at 1000´ with severeal sensors.
You mention "heavy horses"? Did you mean in the SA-365 & S-76 class?
I would think that the EC-155 would be the winner as far as noise is concerned in that class, but that´s just a guess!