airplanetire
Posts: 1783
Joined: Sun May 13, 2001 11:59 pm

Category 1 Versus Category 2 Airports.

Sun Dec 01, 2002 9:04 am

What is the difference in a Category 1 and a Category 2 airport? I was looking at this thread where there was some talking about how EZE is now a category 2: http://www.airliners.net/discussions/general_aviation/read.main/973589/
What other categories are there? What restrictions does category 2 impose? It seems that it doesn't allow addition of services to the US, but anything else?
 
flyf15
Posts: 6633
Joined: Tue May 18, 1999 11:10 am

RE: Category 1 Versus Category 2 Airports.

Sun Dec 01, 2002 9:07 am

What is discussed in that thread is a category imposed on an airline, not an airport. In reference to airports, the "Category" would most likely be in reference to the types of ILS approaches available at that airport, being I through IIIc.
 
airplanetire
Posts: 1783
Joined: Sun May 13, 2001 11:59 pm

RE: Category 1 Versus Category 2 Airports.

Sun Dec 01, 2002 9:24 am

Oops. I misunderstood that. Sorry and thanks for clearing that up.
 
ArgInMIA
Posts: 475
Joined: Fri Nov 09, 2001 4:07 pm

RE: Category 1 Versus Category 2 Airports.

Sun Dec 01, 2002 3:37 pm

I must say that actually the Category was impossed to the whole country not only one airport or airline..
Alto.. Mucho mas alto.. hasta la cumbre
 
backfire
Posts: 3467
Joined: Fri Oct 06, 2006 8:01 am

RE: Category 1 Versus Category 2 Airports.

Sun Dec 01, 2002 8:18 pm

You're confusing two different things here:

FAA International Aviation Safety Assessment scheme (IASA)

IASA is the FAA's international monitoring programme which it uses to measure whether any particular country complies with ICAO standards.

If a country complies with ICAO, it is classified Category 1. If not, it's Category 2.

Countries classified as Category 2 are restricted in their operations to the USA. For example, airlines in Category 2 countries cannot expand US services with their own aircraft -- they must wet-lease them from other operators (from Category 1 countries).


Instrument Landing System (ILS) categories

This is completely unrelated to the IASA scheme. An ILS allows aircraft to land in low-visibility conditions. The higher the category of ILS, the more accurate the guidance, and the closer the aircraft can be to touchdown before a go/no-go decision has to be made by the crew regarding the landing. In other words, the worse the visibility, the higher the category of ILS needed to make a safe approach.

Your basic ILS is Category I. For the worst weather, you're looking at needing Category III and above (IIIa, IIIb and so on). These high-category ILSs allow zero-visibility landings and are essential for airports such as London Heathrow where the hub is too busy to allow British weather to mess things up.

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