quote:

---

> Please excuse this extremely silly question but can someone clarify if the
> wind direction quoted by ATIS comes from or goes toward the quoted bearing
> i.e. Wind 090 at 10 knots, does this mean the wind is coming from 090 and
> blowing towards 270 or the other way round?
>
> Thanks
>
> --
> Ibby (The artist formerly known as Chris)
>
>
>

quote:

---

> Please excuse this extremely silly question but can someone clarify if the
> wind direction quoted by ATIS comes from or goes toward the quoted bearing
> i.e. Wind 090 at 10 knots, does this mean the wind is coming from 090 and
> blowing towards 270 or the other way round?

quote:

---

> "Ibby (The Artist Formerly Known as Chris)" <donotemailme@nothere.com>
> wrote:
>
>
> Don't feel silly. I recall having the same confusion when I first started
> my flight training.
>
> As William pointed out, the ATIS is stating winds from their source, as in
> the winds are coming FROM 090 at 10 kts. This will help you to quickly
> visualize the winds in relation to the landing runway, since the objective
> is to land into the wind. (Runway number with a trailing ZERO is within
> ten degrees of its magnetic heading - as in runway 27 is *roughly* on a
> magnetic heading of 270.)
>
> Also worth pointing out is that ATIS-reported winds are *magnetic*
> direction (relative to magnetic north) whereas winds reported in a wind's
> aloft forecast are reported in true heading (relative to true north).
> This
> is done because flight planning begins with all headings first being
> related to true north, then converted to magnetic.
>
> --
> Peter

quote:

---

> Thanks for that. I have to say I don't get into the nitty gritty of
> True/Magnetic north in the sim (probably end up lost in real life though!)
> I presume on an active runway you land into the wind like stated, but also
> take off into the wind. Does taking off into the wind create more lift
> under the wings as I always presumed flying into a headwind would slow you
> down but I presume I'm wrong.
>
> --
> Ibby (The artist formerly known as Chris)

quote:

---

> Thanks for that. I have to say I don't get into the nitty gritty of
> True/Magnetic north in the sim (probably end up lost in real life though!)

quote:

---

> I presume on an active runway you land into the wind like stated, but also
> take off into the wind.

quote:

---

> Does taking off into the wind create more lift
> under the wings as I always presumed flying into a headwind would slow you
> down but I presume I'm wrong.

quote:

---

> Please excuse this extremely silly question but can someone clarify if the
> wind direction quoted by ATIS comes from or goes toward the quoted bearing
> i.e. Wind 090 at 10 knots, does this mean the wind is coming from 090 and
> blowing towards 270 or the other way round?
>
> Thanks
>
> --
> Ibby (The artist formerly known as Chris)
>
>
>

quote:

---

> Thanks for that. I have to say I don't get into the nitty gritty of
> True/Magnetic north in the sim (probably end up lost in real life
> though!) I presume on an active runway you land into the wind like
> stated, but also take off into the wind. Does taking off into the
> wind create more lift under the wings as I always presumed flying
> into a headwind would slow you down but I presume I'm wrong.

quote:

---

> The only silly question is the one never asked. A lot of people get
> confused by this, especially those involved marine forcasts...marine lists
> it as the 'TO' direction, aviation as has already been explained is
> 'From'.
>
>
>
> "Ibby (The Artist Formerly Known as Chris)" <donotemailme@nothere.com>
> wrote in message news:dv9al6$mqi$1@nwrdmz02.dmz.ncs.ea.ibs-infra.bt.com...
>
>

quote:

---

> Sometimes a general (ie not metar) weather forecast can be confusing too,
> such as 'today there will be a westerly wind' - is that coming from the west
> or going to, who knows.
>
> Steve
>
> "PPS" <jgardner@nitroREMOVETHISgraphix.Kom> wrote in message
> news:myXRf.12867$C7.9470@bignews2.bellsouth.net...
>
>

quote:

---

> Sometimes a general (ie not metar) weather forecast can be confusing too,
> such as 'today there will be a westerly wind' - is that coming from the
> west or going to, who knows.
>
> Steve

quote:

---

> In the US, as far as I know, the only 'From' is marine, everything else is
> 'To', and to this day I have no idea why :-)

quote:

---

> PPS <jgardner@nitroREMOVETHISgraphix.Kom> wrote:
>
>
> Do you have that backwards, since aviation is a FROM, right? Or have I
> lost my way somewhere along this thread?
>
> Additionally, the weather forecasters around my parts (northeast US)
> assume
> FROM when they are stating the forecasted winds.
>
> "We will have a strong southwesterly wind this afternoon as that low
> pressure system pulls out of the region."
>
> Looking at the isobars on their prog charts confirms this.
>
> --
> Peter

quote:

---

> Ya, I inverted myself...more coffee!
>
>
> "Beech45Whiskey" <pjricc@ZZgmail.com> wrote in message
> news:11j87zwawxa3y.dlg@ID-259643.user.individual.net...
>
>

quote:

---

> Is that what you call it ? :-)

quote:

---

> Ibby (The Artist Formerly Known as Chris) wrote:
>
> Taking off into the wind effectively shortens the required length of
> runway - ergo makes the endeavour safer.
> As conversely, taking off with a tail-wind effectively lengthens it = BAAD
> !
>
>
>
>

quote:

---

> "Ibby (The Artist Formerly Known as Chris)" <donotemailme@nothere.com>
> wrote:
>
>
> The pole around which the Earth spins and the pole around which the
> earth's
> magnetic field enters and exits the earth are not one and the same
> (magnetic north is not in the same physical location as true north up
> there
> in the Artic Circle).
>
> To visualize the difference between true and magnetic north, get yourself
> a
> basketball/racquetteball/baseball/kickball/etc. (but not a football).
>
> Now, draw a dot on the top center of the ball. This represents true north
> (which is the pole around which the earth rotates). If the ball is small
> enough, hold the ball in your hand and place one finger at that dot at the
> top and your thumb on the bottom of the ball. Spin the ball in your grasp
> with your other hand and you are simulating a rotating earth.
>
> Just offset of that top-center dot, place another dot (just a little bit
> away from the top-center dot, somewhere on the top of the ball but not too
> close to the first dot you drew). This represents magnetic north, which
> is
> the pole from where the magnetic field emanates.
>
> Without looking it up at the moment, I forgot which direction the magnetic
> field flows, so I don't remember if the field exits the earth at the top
> or
> enters the earth at that point, but this fact is irrelevant here.
>
> With those two dots at the top of the ball, now place a dot at various
> points around the ball's "equator." Draw two lines from each of these
> dots, one up to the "true north" dot on your ball and the other up to the
> "magnetic north" dot you drew.
>
> Notice how some of your "equator" dots have two lines that diverge to
> their
> respective norths? There is the difference between magnetic north and
> true
> north.
>
>
> That is preferable. See below.
>
>
> Taking off or landing into a steady wind reduces your ground roll, or the
> distance you need to roll on the runway, before either lifting off or
> stopping (depending on what it is you are doing).
>
> Taking off or landing *with the wind* (downwind, as it were) increases
> your
> ground roll. Since runway length is finite, it is preferable and safer to
> use as little as possible for either event.
>
> --
> Peter

quote:

---

> It's the direction where you have to point with your nose to smell your
> neighbors barbecue best in the summer.
> --
> Regards
> Axel

quote:

---

>
> Do you have that backwards, since aviation is a FROM, right? Or have I
> lost my way somewhere along this thread?

quote:

---

> Peter

quote:

---

> Anal/cranial inversion sound better? :-)
>
>
> "William" <alone@home.com> wrote in message
> news:L7YRf.291$xz6.50@bignews1.bellsouth.net...
>
>

quote:

---

> Cue Abbot and Costello!
> Who's on what base?
>
> --
> Ibby (The artist formerly known as Chris)
>
>
>
>
>

quote:

---

> Anal/cranial inversion sound better? :-)
>
>
> "William" <alone@home.com> wrote in message
> news:L7YRf.291$xz6.50@bignews1.bellsouth.net...
>
>

quote:

---

>I was thinking more about the coffee part :-)
>

quote:

---

> Caffiene, nicotine, sugar, the 3 basic food groups, never post without
> plenty of each :-)

quote:

---

> Anal/cranial inversion sound better? :-)
>
>

quote:

---

> I'm vegetarian so I would probably face the other way!
>

quote:

---

>Additionally, the weather forecasters around my parts (northeast US) assume
>FROM when they are stating the forecasted winds.

quote:

---

> Logic told me that if that barb were a flag (because that's what they
> reminded me of), it would point in the direction the wind is blowing,
> not where it came from.

quote:

---

>
>

quote:

---

> Please excuse this extremely silly question but can someone clarify if the
> wind direction quoted by ATIS comes from or goes toward the quoted bearing
> i.e. Wind 090 at 10 knots, does this mean the wind is coming from 090 and
> blowing towards 270 or the other way round?
>
> Thanks
>
> --
> Ibby (The artist formerly known as Chris)
>
>
>

quote:

---

> basketball/racquetteball/baseball/kickball/etc. (but not a football).

quote:

---

> Don't you like football Peter, it's the World Cup this you know! Rumour has
> it that the USA team aren't at all bad. At least they are kicking the ball
> now instead of picking it up and running off with it ;-)