NavList:

Marc wrote:

> IFR used to be I Follow Roads,  is that what you had in mind?

Ding! We have a winner. Tell 'em what they've won, Bob...  :-)

How'd you happen to know that little piece of trivia? Are you a flyer
too?

--
GregR

--- Marc Bernstein <bernstein.marc@gmail.com> wrote:

>
> IFR used to be I Follow Roads,  is that what you had in mind?
>
> On 7/17/06, Greg R. <gregr_ingest@yahoo.com> wrote:
> >
> > Red wrote:
> >
> > >  Incidentally, in the US, our airline industry *has* in fact
> abandoned the
> > > nautical mile, if they ever used it.
> >
> > Au contraire, as the holder of an FAA commercial pilot certificate
> (plus
> > instrument and ground instructor ratings), I think I can speak with
> a little
> > authority on that subject...  :-)
> >
> > Unless things changed overnight and nobody told us, nautical miles
> IS (are?)
> > the standard for measuring distances in air navigation these days
> (I
> > remember when the majority of airspeed indicators were in MPH and
> the mild
> > "consternation" that was caused back in the '70s when the industry
> > standardized on knots/nautical).
> >
> > Take a look at any IFR (Instrument Flight Rules) navigation chart,
> and
> > you'll see that the routes and distances between electronic NAVAIDS
> (mostly
> > VOR/VORTACs these days) are all labeled in nautical miles. Statute
> miles are
> > only useful for giving non-aviation passengers an idea of how fast
> we're
> > moving over the ground at any given time...  :-)
> >
> > --
> > GregR
> >
> > P.S. Bonus points to anyone who knows the "alternate" definition
> for IFR....
> > :-)
> >
> >
> >
> > ----- Original Message -----
> > From: "Red" <hellosailor@verizon.net>
> > To: <NavList@fer3.com>
> > Sent: Monday, July 17, 2006 8:50 AM
> > Subject: [NavList 766] Re: Units and area. was: gipsy moth iv
> >
> >
> > >
> > > Robert-
> > >  " It is also intesting to note that, near as I can reckon, the
> nautical
> > mile
> > > has never been abandoned by the aviation and marine industries in
> favour
> > of the
> > > kilometer. "
> > >
> > >  Incidentally, in the US, our airline industry *has* in fact
> abandoned the
> > > nautical mile, if they ever used it. While pilots may still use
> knots and
> > > nautical miles (I don't know how they'd vote) if you ask any US
> air
> > carrier they
> > > will tell you airspeeds and distances in plain statute miles and
> mph. They
> > tend
> > > to schedule aircraft at a convenient 500 statute mph these days,
> which is
> > also a
> > > bit less fuel thirsty than what the aircraft really can do. I
> don't know
> > of any
> > > official policies or pronouncements about this, that's just what
> "every"
> > carrier
> > > in the small number I've dealt with in the past ten years has
> used.
> > >
> > >
> > >
> > > >
> > >
> >
> >
> >
> > >
> >
>
> >
>


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