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 are the various fees associated with flying? [closed]

I am aware of airport landing fees, fuel fees etc, but it was brought to my attention that there is airspace charges? And especially in Canada, the fees are horrendous. What are the various types of ...
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What is the legal altitude to fly through Yosemite Valley (US)?

I have a question regarding flying in the Yosemite Valley national park, which I flew over last weekend in an open-cockpit gyroplane. The sectional states you must be a minimum of 2,000 ft about the ...
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528 views

Is there a standard format to exchange airspace information in electronic form?

I am looking for information about airspace definitions. On maps they look great and a pilot has no problem reading maps and NOTAMs, but what about autopilots? Do they use some kind of standardized ...
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Why do some Canadian Class E airspaces have no ATC frequency on VFR maps?

PPL student here, studying airspace. Looking at the airspace around Vancouver, BC (see Vancouver VTA) I see that most of the lower mainland is class E controlled airspace. "No Contact" tells me that ...
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Are there any ILS approaches in Class E airspace?

When descending on an ILS you can descend to 100' above the TDZE if you have the approach lighting system in sight. Cody Johnson wrote an article explaining how one pilot mis-interpreted what the ...
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Is it possible for a non-towered airport to have keyhole extensions Class E starting at the surface?

(skyvector.com, modified) The Springfield, OH airport, KSGH, is a non-towered airport with both precision and non-precision instrument approach procedures. To support these approaches, there are a ...
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What's the north boundary of the KINS Class D? (Or: does a SUA designation take precedence over controlled airspace?)

This is inspired by the question regarding aerobatics over a surface class D area. KINS (Creech AFB) sits right outside the south boundary of the Nellis Range Complex (R4806W to be precise). ...
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May aerobatics be performed over a controlled airport without getting a waiver?

CFR 14 Part 91.303 states: Aerobatic flight. No person may operate an aircraft in aerobatic flight-- (a) Over any congested area of a city, town, or settlement; (b) Over an open air assembly of ...
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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 close can I fly to a bridge?

I want to take some pictures of a bridge. How close can my pilot get me?
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How are range violations during a launch countdown handled?

I was watching the ULA Atlas V IBIRS countdown tonight but the launch was scrubbed (after some technical issues) ultimately because of a range violation: an airplane was in the restricted area. I've ...
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Why is it assumed on sectionals that the area outside of a 700 AGL Class E (Echo) transition area is Class E starting at 1,200 AGL?

In this Bold Method article (http://www.boldmethod.com/learn-to-fly/airspace/class-g-airspace/) it is stated that anything beyond the hard lines of this examples 1,200 ft AGL Class E (blue) transition ...
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What separation and information does ATC provide in different airspace classes?

I am busy studying radio for my PPL in South Africa, but I'm struggling to understand the ICAO definitions of the different airspace classes, and how ATC separates traffic in them. I understand that ...
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1answer
149 views

Where to find comprehensive description of Special Use Airspaces (SUAs)? [closed]

Can you suggest me some document or website where I can learn about Special Use Airspaces? My goal is to understand the following topics: SUA definition Types of SUAs SUA pubblication SUA creation ...
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Is an ultralight aircraft allowed to fly near Class B airspace?

May an ultralight vehicle operating under FAR part 103 operate within Class G and E airspace while within the mode C veil surrounding a Class B airport? Quoting directly from Title 14 CFR 91.1 ...
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721 views

What is the difference between directs and shortcuts in the Route Availability Document?

I am studying about directs and shortcuts in aviation. While flying, an airplane can move from an airway to another by using directs or shortcuts. What I want understand is the difference between ...
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1answer
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What is the difference between SUA (Special Use Airspace) and FUA (Flexible Use Airspace)?

The EUROCONTROL Concept of the Flexible Use of Airspace (FUA) is that: an ASM concept currently applied in the ECAC area and based on the fundamental principle that airspace should no longer be ...
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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 the criteria for determining whether an airport will be towered or uncontrolled? [duplicate]

I thought about this in reference to the question about Schamburg Airport in Chicago. Is there a particular criteria for an airport, for instance the amount of instrument traffic going into and out ...
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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? ...
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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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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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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, ...
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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 ...
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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 ...
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570 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 ...
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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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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?
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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 ...
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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 ...
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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 ...
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869 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 ...
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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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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: ...
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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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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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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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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 ...
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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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1answer
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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 ...
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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?
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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 ...
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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?
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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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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 ...
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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: ...
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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 ...
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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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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 ...
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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 ...