Talk:Airspace class

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This article uses alot of jargon and codes, and isn't very clear to people with little or no knowledge on the subject, such as myself --Phantom784 23:33, 9 May 2006 (UTC)

I'll see if I can find time to re-write, however I doubt that there'll be much change as aviation is unavoidably full of jargon. It is tedious to explain in lay terms every time it is used: that's what we have wikilinks for.BaseTurnComplete 21:08, 15 June 2006 (UTC)

Contents 1 SIX Classes of Airspace? 2 I need reference for ICAO airspace classification definition. 3 Canadian airspace 4 Class C&D VFR Clearance

[edit] SIX Classes of Airspace?

As it in http://www.faa.gov/ats/asc/publications/02_ACE/APPEND_A.PDF, There are six classes, instead of seven, of U.S. airspace: CAT I: Class A to E Airspace as controlled, and CAT II: Class G, as uncontrolled airspace.

--Natasha2006 17:13, 16 March 2007 (UTC)

Correct. The United States does not use class F airspace, as explained in the "United States" subsection of the article. ChadScott 21:19, 16 March 2007 (UTC)

[edit] I need reference for ICAO airspace classification definition.

I am looking for official ICAO definition on airspace classification for reference. I tried to search it on www.icao.int, but didn't get it. May someone who knows about it tell me please?

--Natasha2006 14:38, 23 March 2007 (UTC)

I believe the official definitions are published in the ICAO annex 11, but I haven't found an on-line version of it. You can, however, order printed volumes from the ICAO. -- ChadScott 03:18, 28 March 2007 (UTC)

Annoyingly, ICAO does not make its documents available on the web. Instead, it charges for CD or paper copies. My personal opinion is that this is not satisfactory for the de facto global aviation regulator in this day and age, but there you go.BaseTurnComplete 20:35, 28 March 2007 (UTC)

[edit] Canadian airspace

Can someone knowledgeable please fill in the Canada section? It's way too basic. ChadScott 03:07, 28 March 2007 (UTC)

[edit] Class C&D VFR Clearance

Under "ICAO Definitions" it is stated that "VFR aircraft require radio contact prior to entering airspace (Not to be confused with ATC clearance)".

However under "United States" it is stated that "The U.S. uses a modified version of the ICAO class C and D airspace, where only radio contact with ATC rather than an ATC clearance is required for VFR operations."

This leads me to believe that the ICAO section is actually quoting a US specific variation. Can this be confirmed? —Preceding unsigned comment added by 87.254.76.48 (talk) 21:56, 4 October 2007 (UTC)

It appears that someone had changed the ICAO definition to the US-only one. Per ICAO, all flights need an ATC clearance to enter Class C and D airsapce.BaseTurnComplete (talk) 22:05, 6 February 2008 (UTC)