Requesting a hold from ATC for descents

Sam Spade writes:
B A R R Y wrote:
Sam Spade wrote:

It was eons ago. Primarly to keep the noise in near the airport. It
was when the majority of airline jets made much more noise

Like 727's?

The 707s (especially the non-fan models) the same type of DC-8, and the
Convair 880 were the really bad noise makers. 727s and early DC-9s were
not quite so loud on low-level flight.

What the original program did was try to keep arrivals high enough so
level offs did not have to occur below 6,000 feet, agl. It was the
spool up of the engines at say 3,000 to 4,000 feet on "downwind" that
spread noise all over town.

The above 10,000 program for fuel came along later.

Those living near NAFs are finding that things have retrogressed.
USN apparently failed to include a noise level requirement in the
specs for the newest F/A-18s. They are loooooud. They're easily
tracked out to five to ten miles by ear alone.

Sam Spade writes:

Well, the 727 APU cannot be used in flight.

I heard it on the ground. It was very noisy.

I don't know where your expertise on 727s comes from, but I know where
mine comes from and the 727 was relatively quiet compared to most other
airline airplanes at its time of entering service.

Sure, but that was a noisy time compared to the present.

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