FAA pulls funding for LAAS landing systems

In article , Javier Henderson
wrote:

except in for the problems with ILS in Europe...

What's the problem with ILS approaches in Europe? Frequency congestion?

yes. and interference from FM radio stations.

--
Bob Noel

In article ,
lid says...

In article , Javier Henderson
wrote:

except in for the problems with ILS in Europe...

What's the problem with ILS approaches in Europe? Frequency congestion?

yes. and interference from FM radio stations.


And what do you base this on?
CAT IIIc approaches are in effect at major airports, and small reliever
airports everywhere are using ILS CATI. What "problems" do you refer to?

G Faris

The LAAS correction uplink is in the 150MHZ area. It would have been
more susceptible to FM interference than a Localizer. Just another
little tidbit of info.

Bob Noel wrote:
In article , Javier Henderson
wrote:


except in for the problems with ILS in Europe...

What's the problem with ILS approaches in Europe? Frequency congestion?


yes. and interference from FM radio stations.

Not quite. I had lunch with one of the FAA guys, and he told me there were
some significant technical hurdles that were not adequately addressed. They
were much further from fielding than anyone was led to believe.

I also heard that WAAS will never get close to Cat I cert...

Then again, he stated that legacy systems can't even meet the new
performance specs to begin with. Looks like the bar was set too high...


wrote in message ...


JJ wrote:

LAAS (Local Area Augmentation System) was to provide CAT 2 and 3 ILS
capability at major airports by fine tuning GPS and up loading
correction signals to aircraft. FAA has canceled the program. Looks like
the ground based ILS systems once slated for removal by 2010 are here to
stay.

They finally figured out the airlines are married to ILS, both
domestically
and internationally.

JJ wrote:

LAAS (Local Area Augmentation System) was to provide CAT 2 and 3 ILS
capability at major airports by fine tuning GPS and up loading
correction signals to aircraft. FAA has canceled the program. Looks like
the ground based ILS systems once slated for removal by 2010 are here to
stay.

There is a variation on this theme, however. Boeing has spent no small
amount of money developing and testing its own LAAS system at Mose Lake,
Washington. It does awesome things with appropriate equipment Boeings,
which is mainly a few 737-900s at the present time. The aircraft can fly RF
legs (radius to fix legs) so even the turns are positive course guidance
along a precisely defined arc segment. I suspect the Boeing model could
become a future private system for advanced RNP instrument approaches at
difficult airports,

"JJ" wrote in message
...
LAAS (Local Area Augmentation System) was to provide CAT 2 and 3 ILS
capability at major airports by fine tuning GPS and up loading
correction signals to aircraft. FAA has canceled the program. Looks like
the ground based ILS systems once slated for removal by 2010 are here to
stay.


I have not seen a news report of that anywhere. Do you have a link with more
details?

Big link but under www.aviationnow.com

http://www.aviationnow.com/avnow/sea...cut0203 4.xml

C J Campbell wrote:
"JJ" wrote in message
...

LAAS (Local Area Augmentation System) was to provide CAT 2 and 3 ILS
capability at major airports by fine tuning GPS and up loading
correction signals to aircraft. FAA has canceled the program. Looks like
the ground based ILS systems once slated for removal by 2010 are here to
stay.



I have not seen a news report of that anywhere. Do you have a link with more
details?