CNN article on problems in Air Travel, as seen by FAA

"John Kulp" wrote

GPS allows for closer spacing and straighter flight paths allowing
more flights to be handled in the same time span. About 25% more.

If they are heavies, the separation for wake turbulence is what the limiting
factor for separation, isn't it?
--
Jim in NC

On Mon, 29 Oct 2007 22:27:34 -0400, "Morgans"
wrote:


"John Kulp" wrote

GPS allows for closer spacing and straighter flight paths allowing
more flights to be handled in the same time span. About 25% more.

If they are heavies, the separation for wake turbulence is what the limiting
factor for separation, isn't it?

Well, wake turbulence is certainly a factor, particularly for the A380
which may slow down things even further. Which raises the question as
to whether it should be penalized more than others if they start to
use penalties.

John Kulp wrote:


Well, wake turbulence is certainly a factor, particularly for the A380
which may slow down things even further. Which raises the question as
to whether it should be penalized more than others if they start to
use penalties.

If it takes up more of a scarce asset then of course it should pay more.

Morgans wrote:

"John Kulp" wrote

GPS allows for closer spacing and straighter flight paths allowing
more flights to be handled in the same time span. About 25% more.


If they are heavies, the separation for wake turbulence is what the limiting
factor for separation, isn't it?

You need up to six miles behind a heavy. Your spamcan needs four miles
behind a large, such as a B737. To say GPS increases available capacity
25% is ludicrous.