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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25
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5answers
9k views

Can civilian aircraft fly through or land in restricted airspace in an emergency?

This is a super hypothetical question of mine. I was wondering if civilian pilots who happened to be faced with a severe emergency could fly through or possibly request to land in restricted airspace? ...
4
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1answer
1k views

What is the difference between SUA and SAA?

I would like to understand the difference between Special Use Airspace (SUA) and Special Activity Airspace (SAA). I found the following definitions. Eurocontrol Lexicon for SUA (from FAA): ...
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0answers
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Is there a “maximum” airplane count in the visible sky at a given location? [closed]

At night, I look at the planes in the sky and count them. I can normally spot between 2-5 planes, never more. As the visible sky is always a constant area and there are security distances and aerial ...
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4answers
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What is the benefit or motivation for having Class G airspace?

I'm looking at the differences between Class E and Class G (AIM 3-2-6) airspace in the United States and I get that there are different flight condition requirements depending on AGL/MSL altitudes, ...
17
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2answers
1k views

How precisely are airspace borders defined?

I'm studying for the commercial drone certificate. In Tucson, AZ the class C airspace covers about half of the city, but the charts don't list the exact point that it ends. Here's a portion of the VFR ...
16
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3answers
2k views

What's usually going on in a “hot” military operations area (in the US)?

Like many people in aviation, I've been around pilots who've flown in or through the edge of a Military Operations Area (MOA) while operating under visual flight rules. Usually they ask ATC if the MOA ...
3
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1answer
504 views

When must delegated airspace be listed in the AIP?

Two states can agree, through a bilateral letter of agreement, to delegate the responsibility for providing air traffic services (ATS) within a certain airspace from one state to the other. There can ...
11
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1answer
2k views

What is a listening squawk?

A NATS video recommends the use of a listening squawk as one of the means to avoid infringing airspaces. What is it? And what is the equivalent of it outside of the UK? Say in the US.
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2answers
125 views

Is there any ATS into the Special Use Airpaces (SUA)?

The SUA has its own characteristics and limitations. Is there any unit responsible for providing separation, control or information, for pilots flying into or across any SUA?
6
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2answers
2k views

Is the airspace at KGPT class E or G when the tower is closed?

I'm a bit new to airspace and I'm trying to figure out if the airspace around Gulfport-Biloxi International (KGPT) changes to class G or E when the tower closes. Looking at KGPT's airspace on a ...
6
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2answers
507 views

Can a change in altimeter setting make you change the airspace?

If you are at 17999 MSL VFR, you twist in 29.92 into the altimeter, and it raises your altitude to above 18000, did you bust the class A? Then theoretically, could you be in class A airspace with a ...
7
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1answer
26k views

What are the differences between a VOR and a VORTAC? [duplicate]

In Brazil airspace, we do not have VORTACs to navigate (unfortunately). That's why my doubts about accuracy, the range, the possible systems/frequencies they operate, and if there is any restriction ...
12
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1answer
828 views

How do aircraft carriers treat foreign Flight Information Regions?

Aircraft carriers have the right to be anywhere as long as they stick to international waters. But as soon as a plane leaves the deck, that's somebody's FIR. Granted they can fly low, or even know ...
8
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2answers
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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 ...
4
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2answers
1k views

Can I land at an uncontrolled airport under class C without talking to ATC?

In this situation, I would be flying from Richmond Executive-Chesterfield (FCI) to New Kent Co (W96). Can I land at an uncontrolled airport under class C without talking to ATC? Picture source: ...
4
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1answer
632 views

Do all Class B and Class C towers operate 24/7?

For Class B airports, I think the answer is realistically yes, due to traffic flows. How about Class C airports? Are there any legal requirements that it has to operate in 24/7, or is a convention?
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2answers
866 views

What does dashed blue lines overlay with thick faded blue lines mean in an aeronautical-chart?

By looking at the dashed blue lines overlay with thick faded blue lines, can we say these are Class D airspace and Class E airspace above 1200' AGL?
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1answer
2k views

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.
12
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1answer
3k views

When do you contact ATC when departing from a non-towered airport into class C controlled airspace?

When you're departing from an airport within controlled airspace, when should you contact ATC? This is when the airport you were departing from is non-towered. Scenario: I am departing a non-towered ...
8
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2answers
9k views

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 ...
2
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1answer
4k views

What are the operational limitations on ADS-B DO-260A (as compared to DO-260B)?

First off, here is my understanding: I'm primarily concerned with retrofit aircraft. A number of Asian countries (and Australia) already require ADS-B to DO-260A standard. The European mandate is ...
4
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2answers
337 views

How many aircraft can an ATCo control simultaneously, on procedural and radar service?

Aispace is separated in sectors, and each one has its own frequency. What's the airspace capacity for procedural and radar services, for a single sector?
2
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1answer
72 views

Currency retraining [closed]

I am a private pilot who has not flown in 30+ years, but want to start again. I'm a little concerned about how airspace and avionics may have changed. Will be starting with CFI next week. Can ...
8
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4answers
496 views

What is minimal altitude that aircraft (rocket?) can fly above any country without any permission?

What is minimal altitude that aircraft (rocket?) can fly above any country without any permission? I mean, at what altitude ends country's airspace?
11
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2answers
6k views

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?
9
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2answers
1k views

What is “airspace underlying a Class B airspace area designated for an airport”?

For the purposes of airspeed restrictions within airspace, the FAA regulations list the following area description (emphasis mine): 14 CFR 91.117 (C) No person may operate an aircraft in the ...
13
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2answers
1k views

Where can I find old (historical) FIR map?

I'm doing a research with FIR Ho Chi Minh (formerly named FIR Saigon). I've read a document which said: During the Fall of Saigon, ICAO, in 28th of April 1975, had divided FIR Saigon into 3 AOR: ...
4
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2answers
708 views

Is special permission required to take off from a field within restricted airspace?

I had a question about restricted airspace that I wanted to clear up before resuming my training Sunday; you know, to maximize time in the air. The airport I am training at is KMRH and it's ...
6
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2answers
6k views

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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3answers
329 views

Means of protection against hunter-killer UAVs [closed]

I would like to know all existing technological means of defending an area against the MQ-9 Reaper or other hunter-killer unmanned aerial vehicles (UAVs) used by the United States in countries like ...
4
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2answers
3k views

When is a transponder required below class B airspace?

I just wanted to clear up questions I have about flying within the 30 mile veil of Class B. My understanding is that the Class B is the inverted wedding cake, having tiers as the airspace moves ...
2
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2answers
3k views

What type of airspace is an Atlantic Low Control Area?

Could someone explain what the blue zipper line 'Atlantic Low Control Area' is in the images below? What type of airspace is this? How far off the coast does it start? Would it still be G to 1200 and ...
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2answers
2k views

What are the types of class E airspace? [closed]

I don't quite understand the various categories of Class E airspace.
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1answer
818 views

What is the main difference between Class C and B Radar Service?

What is the main difference between Class C and B Radar Service? Class C service provides approved separation between IFR and VFR aircraft, and sequencing of VFR aircraft to the primary airport. ...
3
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1answer
335 views

What do pilots operating under FAA 14 CFR 91 have to do to fly in any of the Special Flight Rules Areas (SFRAs)?

What do pilots operating under FAA 14 CFR 91 have to do to fly in any of the Special Flight Rules Areas (SFRA). Does each SFRA have its own requirements? I know there's a question already about the ...
9
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2answers
30k views

What is a Terminal Radar Service Area (TRSA) and what are its operational requirements?

Some fairly busy airports that you would expect to have Class B or C airspace have class D airspace at the airport and normal class E and G airspace around that. In addition, they have an area drawn ...
12
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7answers
12k views

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 ...
8
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1answer
6k views

Why do some non-towered airports have class E airspace from the surface up?

I've noticed that when it comes to non-towered airports, some are in class G airspace and others have class E airspace starting from the surface. At first I thought the airports with class E at the ...
7
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2answers
7k views

What are some examples of warning areas and restricted areas?

Can you please give me some examples of warning and restricted areas? How can an aircraft enter these areas? What are the procedures you have to follow before entering them?
17
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4answers
14k views

Does Flight Following automatically include permission to fly through class C or D airspace?

The situation is as following - I requested flight following at approach, got a squawk and instructed to maintain VFR with heading and altitude at my discretion. My route is through class D and class ...
6
votes
1answer
192 views

Class B and C Airpsace Ring Data in Text [duplicate]

Class B and Class C airspace has multiple rings where each ring can be a custom polygon shape. I want to extract following data into text: the shape of these polygon rings in lat/long (ideally a ...
2
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2answers
6k views

What are the key differences between controlled and uncontrolled airspace under the FAA jurisdiction?

The FAA utilizes the ICAO definitions for class A-E airspace as controlled and class G as uncontrolled (class F airspace is unused under the FAA). What are the key differences between controlled and ...
21
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1answer
2k views

How does aviation deal with satellite and Moon laser ranging, and other scientific lasers in the sky?

It seems there are many scientific laser ranging stations around the globe and some are mobile. Scientists Bounce Laser Off Soviet Lunar Rover Lost On Moon Decades Ago. Source Questions How ...
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1answer
4k views

How to find out if Restricted Area is “hot” before taking off?

For example, I often fly from KCHO to KOXB and almost always get cleared through R-4005 and R-4006. Occasionally they will be hot and I will have to go around, wasting time and fuel compared to if I ...
7
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1answer
2k views

What is the ceiling to prohibited space P-47 (or any other P-zone)?

On the Dallas-Fort Worth sectional, notice one of the few permanently Prohibited airspace zones west of the Mississippi; P-47, around the PanTex nuclear plant in Amarillo, just northwest of Husband ...
8
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1answer
646 views

What activities take place in the warning areas offshore of Washington, D.C.?

Looking at the Washington sectional, several areas offshore are designated "Warning" areas: W-386, W-107, W-105 etc. The only notes given are "National Defense Operating Areas. Operations hazardous to ...
6
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1answer
368 views

Who has authority over stadium TFR exceptions in VFR flight?

I fly in the Bay Area. I sometimes like to fly over SF through the San Francisco Class B. If I am in contact with Norcal Approach and in their airspace, I can ask them for an exception and they can ...
4
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1answer
537 views

What special airspace exemptions are granted for civilian fighter jets?

How do civilian fighter jet operations arrange airspace usage for conducting flight tours? Do they use military operation areas? If they fly into class A can they perform maneuvers, or do they need to ...
8
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3answers
548 views

Are there any widely applicable models for plausible aircraft auto-routing?

Aircraft travel in well defined airways, at different flight levels depending on direction and also have specific rates of ascend, descend and turn (e.g 2-min turn). Are there any known models that ...
9
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1answer
796 views

When airspaces adjoin vertically, which airspace class does the shared flight level or altitude belong to?

Airspaces have a lateral and vertical boundary, which results in airspaces adjoining other and thus having a shared vertical boundary. Which airspace class do these shared vertical boundaries belong ...