Questions tagged [airspace]

Airspace means the air above a specific country (e.g. US airspace) but for aviation purposes it is usually divided into different types, each of which may have different regulations.

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What is the purpose of warning areas?

What purpose does the warning area serve? Is it like CFA'S, MOA'S?
7 votes
1 answer
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Why do aircraft fly over Paris when they're forbidden from doing so?

I though aircraft were forbidden to fly over Paris, but I can hear a lot of planes flying over Paris, and, looking at Flightradar24, they are really flying over the city. They are commercial planes, ...
2 votes
1 answer
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What happens procedurally when a country's airlines are now allowed to fly through another country's airspace for the first time? (new flight routes?)

CNN's July 15, 2022 Saudi Arabia opens airspace to Israeli flights begins Saudi Arabia on Friday opened its airspace to all civilian carriers, including all flights to and from Israel, in a step ...
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What is the difference between regulatory and nonregulatory airspace?

The first paragraph of the FAA PHAK Chapter 14 - Airspace says: The two categories of airspace are: regulatory and nonregulatory. Within these two categories there are four types: controlled, ...
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Where does the FAA define the dimensions of Terminal Radar Service Area (TRSA) airspace?

The airspace over the United States is classified into various areas of "alphabet" airspace (A, B, C, D, E, G). This is known as "regulatory" or "rulemaking" airspace ...
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Do military aircraft overflying other countries' airspace require special clearance?

Is there any special clearance, when military aircraft will overfly other countries' airspace? Are they continuously monitored?
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How did ICAO SARPS come to include the 250 knots speed limit for aircraft below 10,000 feet?

In certain airspace classes, a speed limit of 250 knots IAS is imposed for aircraft flying below FL100/10.000FT, according to the airspace classes defined by ICAO. How did this limit find its way into ...
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What is meant when "flying/operating below Controlled Airspace"?

I'm currently studying for my PPL(A) and I've heard this phrase a few times now: The QNH must be used for flight below the Transition Altitude when flying below Controlled Airspace RPS should not be ...
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Does FAR 91.155c apply to class E surface extensions?

Federal Aviation Regulation (FAR) 91.155 says under (c): Except as provided in §91.157, no person may operate an aircraft beneath the ceiling under Visual Flight Rules (VFR) within the lateral ...
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Why does the surface-level Class E airspace at SIT/PASI (Sitka Alaska) extend so far to the northwest?

The August 1992 Final Rule "Terminal Airspace Reconfiguration" (page 38963, Federal Register Volume 57 No 167, August 27 1992) (link to pdf of entire issue opening to this page) stated that ...
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What Class Airspace Surrounds TRI Cities? [duplicate]

I'm planning out a "fly the Appalachian Trail" route, and as the AT comes out of the Great Smokey Mountains and heads for its crossing of the Nolichucky river, it puts anyone flying along it ...
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Where can the airspace boundary coordinates for Fayetteville TRACON be found?

I would like a map depicting the airspace owned by Fayetteville TRACON that includes lat/long coordinates (i.e. not just a cartoon-y outline with no information). Ideally, I'd like to find a site ...
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Restricted airspace and lower limits

I am a new UAS pilot who will be flying agricultural fields. Naturally, my first flight location is close to a restricted airspace for military practice. I want to make sure I my flights are compliant....
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Can an IFR clearance be issued and flown through IMC in class G airspace?

Let's say an IFR flight was planned to depart from a non-towered airport with class G airspace extending from the surface to 700 feet AGL. The flight visibility and ceiling both go down to 0. Can the ...
6 votes
2 answers
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What class is the airspace at KGCN when the tower is closed?

I was wondering if someone could help me figure out how the airspace around the Grand Canyon National Park Airport (KGCN) works. The chart supplement here says: AIRSPACE: CLASS D svc 1 Jun thru 30 ...
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1 answer
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Does a class E airspace still exist when the associated control tower is closed?

An airport tower closes at 1600 hours: Does the extension (class E from surface up) airspace becomes non existing? Can I fly through since the tower is closed?
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Generally speaking, which assumes a greater (steeper) minimum climb or descent angle – approach procedures or departure procedures?

Generally speaking, which assumes a greater (steeper) minimum climb or descent angle – approach procedures or departure procedures? Which would typically require a larger extent of airspace protected ...
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1 answer
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Are there any "VFR corridors" in the US apart from the one in San Diego?

As far as I can tell, the only VFR Corridor (see AIM 3-5-5(b)) that exists is in San Diego. Is that correct or are there others elsewhere in the US?
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Can ATC issue instructions to exclude certain aircraft over international waters?

As an example, the Anchorage Air Route Traffic Control Center's sector extends all the way to the North Pole, far beyond 200 nm of the US coastline. Suppose that the US decides to "close its ...
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What routes are available for airliners to fly from Europe to Japan without entering Russian airspace?

Under the present circumstances it seems like for an European vector flying above Russian airspace can be dangerous (I don't know if Russian airspace is currently closed). However reaching Japan from ...
3 votes
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Is the airspace at KUGN class G from the surface to 1200' AGL where class E starts when the tower is closed?

The chart supplement for KUGN here says "AIRSPACE: CLASS D SVC 1200-0200Z other times CLASS E." Does that mean that when the tower is closed, the class D airspace switches to class E surface area ...
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3 answers
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What does "approved" mean in these quotes?

Class C service provides approved separation between IFR and VFR aircraft, and sequencing of VFR aircraft to the primary airport. Class B service provides approved separation of aircraft based on IFR,...
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What regulations are in place for ultralight vehicles flying over US national parks?

A flight instructor i met with recently said that flying ultralight over national parks is a crime. The law section of the powered paragliders bible has nothing on parks. One would think that ...
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1 answer
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What does "outside controlled airspace above 1200ft AGL" mean?

I came across the following question when prepping for my PPL written exam: "During operations outside controlled airspace at altitudes of more than 1,200 feet AGL, but less than 10,000 feet MSL, ...
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How does an airspace class change from E to D affect already airborne aircraft?

In the US, there are some airports with a part-time tower. When the tower is in operation, the airspace around the airport is class D and requires communication with the tower. When the tower is ...
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In the US, what is the process for filing a DROTAM? [closed]

For drone pilots in the US, what is the process for filing a DROTAM?
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What is the meaning of this "Navigational Warning" and does it apply to the aviation industry? [closed]

This was posted at https://sattrackcam.blogspot.com/2021/09/an-upcoming-trident-ii-d5-slbm-test-in.html Th blog post notes something as a "navigational warning". A few days ago a ...
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1 answer
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Where can I find airspace maps for Turkey?

I am trying to learn more about airspaces. It would be nice if I had the airspace map of my region to look and observe. skyvector.com shows very few information about Turkey, not useful.
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In the US, are there any operational control towers located in surface-level Class E airspace or in Class G airspace?

(This question pertains to the airspace of the United States.) FAR 91.126 gives some general rules for operating at or near airports in Class G airspace, and FAR 91.127 gives some general rules for ...
8 votes
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How did ATC procedures and airspace structure change after San Diego PSA collision?

In 1978, a Pacific Southwest Airlines aircraft collided with a Cessna 172 while approaching the San Diego airport in California. The GA aircraft was piloted by a student, and crossed the approach ...
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Why would the Pakistan airspace closure cancel flights not headed to Pakistan itself?

The India-Pakistan feud has heated up again, with Pakistan closing its airspace as a result. I know many international routes fly over Pakistan, and that the closure would cause issues, but this ...
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What airspace class is the New York Hudson/East River SFRA airspace, and what is its visibility requirements?

In general, the airspace below a Class B shelf is Class E airspace until 1200' or (more often) 700' AGL, and then Class G to the surface. Immediately surrounding the Hudson and East Rivers in New York ...
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In the US, can airspace simultaneously be E2 and E4? What happens at KSTC to the airspace in the dashed magenta boundary when the tower closes?

In the US, can the same airspace simultaneously be E2 and E4? Consider the case of KSTC -- St. Cloud Regional Airport, MN. http://vfrmap.com/?type=vfrc&lat=45.546&lon=-94.059&zoom=10 On ...
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How to sightsee in Class C and D airspaces?

There's a good explanation of procedures for Class B, all of which makes sense since pilots need specific clearance to enter Class B: How do I "sightsee" in a class Bravo airspace?? However, ...
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What should a Pilot do if they encounter foreign military jets? [closed]

Say you're flying an amateur-built plane just out over the waters of, say, Alaska. And then you encounter a fleet of maybe 5 foreign military jets directly above you, and then you get radio ...
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How do you request a 3D block of airspace to to freely maneuver your privately owned military jet?

Referring to this How can you fly your own military jet in terms of altitude and acrobatics? how can you request a block of airspace to freely maneuver your private military jet (barrel rolls, ...
3 votes
1 answer
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Is takeoff permitted from an aerodrome inside a CTR when it's outside the tower's operating hours? [closed]

I am departing from an airfield which is within the CTR of a nearby airport but outside tower operating hours. The chart doesn't specify this situation. According to ICAO rules, Am I allowed to take ...
3 votes
1 answer
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Where can I find US ARTCC sector boundary coordinates?

For an academic purpose, I would like to map US airspace using GIS tools with coordinates. I found the airspace boundary coordinates from the eNASR, but no luck with the sector boundaries. Any ...
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In the US, in actual practice, workload permitting, will ARTC facilities grant SVFR clearance for surface-level Class E "extensions" (E4 airspace)?

In the US, in actual practice, workload permitting, will ARTC Centers and Approach Control facilities grant clearance for Special VFR operations in surface-level Class E "extensions" (E4 ...
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Which parts of class E airspace can an ultralight (part 103) fly in without prior ATC authorization?

I'd like to clarify a very specific statement from 14 CFR Part 103: 103.17 OPERATIONS IN CERTAIN AIRSPACE No Person may operate an ultralight vehicle within Class A, Class B, Class C, or Class D ...
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How should I operate within the dashed magenta lines next to Class D airspace?

I am unsure of how to operate within this area (red dashed line) without connection to ATC. It appears to come off of class D airspace. Can anyone provide an explanation of what this area is and how ...
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In the US, how does the distinction between E2 and E3/E4 airspace affect pilots?

In the US, practically speaking, how does the distinction between the E2 and E3/E4 subtypes of Class E airspace affect pilots?
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What are E2 and E4 airspace?

We have a number of questions here about E2 vs. E4 airspace (see summary of links in this answer) but what does that mean? As far as I can see, neither the AIM nor the ATC Orders mention E2 or E4 ...
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Is the official weather report for an airport in Class D airspace controlling for its Class E surface extension?

If the official weather report for an airport for which Class D airspace is designated is showing IMC, is that controlling for a Class E surface extension (designated for that airport)? For example, ...
3 votes
1 answer
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Why is KLAX and KSEA depicted class D in IFR low enroute chart? [duplicate]

I was looking at ifr low enroute chart and just figured out that KSEA and KLAX are depicted as class D. Aren't they Class B airports? why do they have D mark?
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What are concrete examples for class G up to 14500?

It is said that there are some places where class G goes up to 14500 and then class E starts. However, I find they all overplayed with some special use airspace by looking at NorCal and SoCal ...
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What does Airspace 24 mean in this chart supplement?

I found this line in Leesburg Executive Airport (KJYO)'s chart supplement: I have looked in the Chart Supplement Legend under section 29 and there is no information about such an airspace. At the ...
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Why depict TRSA on a map?

Participation in TRSA services is completely optional. The depicted airspace is all still class E, and you can fly straight through it sans radio or transponder without violating any regulation. ...
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Why does only class C airspace have an "outer area"?

There is an area called "outer area" near class C airspace. As described by this AIM: Though not requiring regulatory action, Class C airspace areas have a procedural Outer Area. Normally this area ...
7 votes
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Can an aircraft flying VFR with a squawk code enter adjacent class C or D airspace after being handed over to the destination tower? [duplicate]

In the US, a VFR aircraft request VFR flight following and is given a squawk code after takeoff. 15nm before arriving at it's destination class D airport, the TRACON facility instructs the pilot to &...

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