ER wrote:
> > D. Glenn Arthur Jr. mused:
> > > Which reminds me ... Are fighters actually much louder than
> > > jetliners, or is it just that when they pass over my house
> > > they do so at a much lower altitude than jetliners do?
>
> and John Francis replied:
> > The former. Military aircraft don't have to meet noise pollution
> > specifications, and also use inherently noisier engine designs
> > (because the important metric is raw power, not fuel efficiency).
> >
>
> Depending on where Glenn lives, the answer could also be "both."
>
> It would be for me.
Southwest Baltimore, far enough from BWI that most of the airliners
I see away from the horizon are high enough to make contrails, and
far enough from Andrews AFB[*] that military craft passing overhead
are unusual (but a formation of four went over this morning).
Hmm. Just realizing that since I'm not _that_ far from BWI, they
must climb pretty steeply after takeoff.
[*] The Naval Academy and Aberdeen Proving Ground are closer, as
is Fort Meade, but I don't know of airstrips at those locations.
I could be mistaken.
-- Glenn
