> The article implied that the automated system would allow for
> /shorter paths/ (the shortest path is the great circle, so this
> statement indicates that trans-oceanic flights are not using great
> circle/GPS routing). Most likely, the flights are using 50 minute "plumb
> lines", with a he
Dennis Lee Bieber wrote:
> Of course, the great circle arc, except for paths with start/end
> latitude of 0 (equator) or with (lon1 - lon2) = 0, require a constant
> variation in compass heading -- and I don't think IFR currently make use
> of great circle arcs (and GPS to maintain them).
I'
Rocco Moretti wrote:
> Tim Daneliuk wrote:
>
>> Diez B. Roggisch wrote:
>>
>>> Tim Daneliuk wrote:
>>>
Casey Hawthorne wrote:
>
> Do your planes fly over the earth's surface or through the ground?
Why do you presume this has anything to do with airp
Paul Rubin wrote:
> Tim Daneliuk <[EMAIL PROTECTED]> writes:
>
>>Huh? When traversing along the surface of the earth, it's curvature
>>is relevant in computing total distance. An airplane flies more-or-less
>>in a straight line above that curvature. For sufficiently long airplane
>>routes (wh
Tim Daneliuk <[EMAIL PROTECTED]> writes:
> Huh? When traversing along the surface of the earth, it's curvature
> is relevant in computing total distance. An airplane flies more-or-less
> in a straight line above that curvature. For sufficiently long airplane
> routes (where the ascent/descent d
Tim Daneliuk wrote:
> Diez B. Roggisch wrote:
>
>> Tim Daneliuk wrote:
>>
>>> Casey Hawthorne wrote:
>>>
Do your planes fly over the earth's surface or through the ground?
>>>
>>>
>>>
>>>
>>> Why do you presume this has anything to do with airplanes?
>>>
>>
>> That was supposed to be a f
Diez B. Roggisch wrote:
> Tim Daneliuk wrote:
>
>> Casey Hawthorne wrote:
>>
>>>
>>> Do your planes fly over the earth's surface or through the ground?
>>
>>
>>
>> Why do you presume this has anything to do with airplanes?
>>
>
> That was supposed to be a funny remark regarding that your
> "str
