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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136 views

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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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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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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220 views

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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170 views

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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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 ...
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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 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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361 views

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, ...
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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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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 ...
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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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Can I Restrict Commercial air Traffic above My Land for ordinary use and enjoyment? [duplicate]

I have 7.72 acres in the Southern California Desert. It's outside of Palm Springs Ca. My land was granted to My Grandfather in 1961 as a homestead. The patent states that I have ALL Rights, Privileges,...
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350 views

How do you figure out which frequency to contact approach on for a class bravo transition?

I'm about 20 hours into my PPL, so maybe I just haven't gotten to this part yet. Suppose I'm flying KFCM to KRNH and I want to request clearance across the bravo. How do I figure out which approach ...
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Which altimeter setting is used to define airspace boundaries?

Let's say that we're flying VFR over the top of Class D airspace at 3,000 feet. The Class D extends up to 2,900 feet - we're above it, but just barely with a 100' buffer. We're also talking to ...
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415 views

What do these double Class Bravo airspace floor and ceiling limits mean?

While browsing SkyVector I came across these double Class B airspace limits within the same section (is that what you call it?). I'm wondering what it means and what the difference is between this and ...
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Does this chart show a heliport in class D airspace without a control tower?

I was looking at the Los Angeles area on sky vector, and I noticed a tiny little triangular class D area right next to LAX. It shows that the height of the class D goes up to 2,500, but I couldn't see ...
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In what airspace may gliders fly in clouds in the UK without an IFR flight plan and without contacting any air traffic control facility?

In what airspace may gliders (sailplanes) legally be flown in clouds in the UK without an IFR flight plan and without contacting any air traffic control facility? Also, how high does this class (...
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If operating an ultralight with private pilot certificate, which rules apply?

If a holder of a private, commercial, or ATP pilot certificate operates an ultralight aircraft; and that aircraft is also equipped with the radios and transponders required by an airspace for GA ...
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Clarification on the SEA-TAC VFR map

I've been looking at the SEA-TAC VFR map, and something caught my eye... On this map one can see that the SEA-TAC airport has a class B designation in a strange inverse-rhomboid shape, surrounded by,...
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Why should lower limit of a Control Area (above 3000 ft) coincide with a VFR cruising level?

In ICAO Annex 11 it is recommended: When the lower limit of a Control Area is above 900 m (3000 ft) MSL it should coincide with a VFR cruising level Why should it coincide with a VFR cruising level?
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On the LAANC map for sUAS operations, why does the permitted ceiling drop to zero southeast of KGFL?

Above is a screenshot1 from the LAANC map for obtaining authorization to operate sUAS (model airplanes, "drones", etc), centered on KGFL, which is Floyd Bennett airport near Glens Falls NY. ...
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On old sectional charts, what was the purpose of the domestic ADIZ regions and what was the difference between a "Defense Area" and an "Open Area"?

Looking at an old US sectional chart from 1956, I noticed a few oddities around where Air Defense Identification Zones (ADIZs) were placed. Compared to modern airspace where the US ADIZ is strictly ...
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What are the pros and cons of PPL training at class C airport?

I'm looking to start PPL training soon, and the closest airfield is Austin-Bergstrom International, which is a class C. The only downside I see to doing training at KAUS is that the few PPL programs ...
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When a Tower and the Approach Control closes who takes over the airspace?

When a Tower and the Approach Control closes, who takes over the airspace? and also what about When a Tower, within an Approach Control, closes, who takes over the airspace?
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187 views

What training is required for a class B endorsement?

14 CFR 61.95 requires solo student pilots to have an endorsement to (a) fly through class B airspace or (b) takeoff/land at a class B airport. However, the requirements to get it are pretty vague: (...
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551 views

What is the difference between a waypoint and a significant point in an airspace?

I know ATS routes are made up of waypoints, but what are Significant Points used for? Is there a difference, or are they really just two names for the same thing?
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What purpose does a control area really serve related to managing air traffic flow?

I can understand that we have control zones at busy airports to streamline the flow of landing and departing traffic. But in Control areas of many airports i have seen that routes go straight through ...
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143 views

How is the term "Coast" defined for FAA regulatory purposes?

14 CFR 91.1 defines the applicability of part 91. This paragraph defines two areas of jurisdiction where certain parts of part 91 apply: within the United States, including the waters within 3 ...
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549 views

Do US state governors have jurisdiction over their airspace?

Do local governments have any control over their local airspace in the US. Could a governor singlehandedly close or restrict the airspace above his state? I know the FAA controls national airspace ...
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What is the status of a bravo airspace when the associated TRACON is evacuated?

On 18 March 2020, an earthquake struck just south of KSLC, causing an evacuation of the control tower and TRACON facilities. The airport was closed. Later in the day, I found myself unable to ...
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365 views

What is the meaning of "transition area" as used by the FAA? Has the meaning changed over time since the term was introduced?

What is the meaning of "transition area" as used by the FAA? Does it currently have a specific meaning? Does the FAA still use the term at all? Has the meaning changed over time since the term was ...
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What is the floor of the class E airspace near KRHV when the tower is closed?

See the attached diagram snippet for KRHV in Northern California. The chart supplement says that when the tower is closed the airport surface is class G. At this time, what is the floor of class E in ...
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Why was the Iraqi airspace closed on 12 Mar 2020?

I was onboard BA105 on March 12, 2020 (London LHR to Dubai DXB), which was rerouted (I hope this is the correct term) to fly over Egypt. See the inflight map photo below: Close to arrival, the crew ...
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667 views

In reference to airspace, what does the FAA mean by "within the lateral boundaries of"? Is this construed to also imply a vertical limit?

Several FARs use the phrase "within the lateral boundaries of" (x airspace). What does the FAA interpret this phrase to mean? Specifically, what is the vertical extent of the airspace encompassed by ...
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What is the main reason why cruise flight in the transition layer is prohibited?

What is the main reason why cruise flight in the transition layer is prohibited? For example if we have a separation of 1000 ft between transition altitude and transition level, why should we not ...
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Can single engine aircraft fly in class A airspace?

A friend surprised me the other day by saying that single engined aircraft are not allowed to fly in class A airspace. I understand that the aircraft is under IFR in class A, with ATC clearance, (...
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603 views

What criteria are used to classify an airport as a satellite airport?

The AIM discusses services provided to satelitte airports of class C airspace. What determines whether an airport is considered a satellite? Distance, private or public classification, etc?
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623 views

Gas Venting Stations: What's The Big Deal?

On sectional charts you can see that, through various restrictions, regulators encourage pilots to avoid flying too close to Gas Venting Stations. These seem to be places where natural gas may ...
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192 views

What is the altitude required to bypass Russia's airspace restrictions for airlines? [duplicate]

Given that Russia charges a lot for flights over Siberia from Europe to Asia, would flying above the Kármán line (100km) effectively bypass this restriction (from legal perspective) ? If not, what ...
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Vancouver FIR meaning

In looking at Garmin Pilot, there is something labeled "Vancouver FIR" which has 3 segments. It's located over the northern Cascades and to the east of the northern tip of Vancouver Island (Canada). ...
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Is the capacity of an airspace sector related to the number of routes it crosses?

I've been searching for data about the capacity of sectors for my PhD research but somehow can't find any...the only thing I found is the routes it crosses ....can we conclude that it's the capacity ...
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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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Question about federal airways in Class E airspace going from 5500 MSL(USA)

Class E with a floor of 1,200 feet AGL is shown with the "fuzzy" side of the blue. And sometimes Class E has a floor higher than 1,200 feet. They will print the floor of the Class E altitude in the "...
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To which airspace does the border of two adjacent airspaces belong to?

Consider two adjacent airspaces of different categories. For example, airspace G is up to 2500' and above this is an airspace D. The border is at 2500'. Which airspace are you in if flying at exactly ...
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When can airliners fly from Israel over Tunisia's and Algeria's airspace?

Per flightradar24, on August 25th 2019, an Air Europa Boeing 787 flying from Tel Aviv to Madrid flew over Tunisia's and Algeria's airspace. I thought flights departing from Israel or flying to it are ...
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Where does one request a VFR transition route through class B?

Other than staying outside class B until being cleared in, is the point where one requests a transition route important? For example, the SFO B coastline transition is shown as starting up at San ...
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2answers
188 views

What happens to a plane that goes to / from an enclave when the surrounding country closes its airspace?

When Pakistan closed its airspace, planes that had routes flying over Pakistan had to deviate around that country. What would happen to planes en route to or from Lesotho, if South Africa closed its ...
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196 views

What additional airspace will be off-limits to an a/c w/ no elect. system or xponder under 91.225 (ADS-B) compared to under 91.215?

Under FAR 91.225 (requirement for ADS-B-out), what additional airspace over the 48 contiguous states in the U.S. will be off-limits to an aircraft w/ no electrical system or transponder, compared to ...
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A question about FAR 91.225(e)(2) -- pertains to ADS-B-out requirement and exemption for aircraft with no electrical system

This is a question about FAR 91.225 (requirement for ADS-B-out) and where aircraft with no electrical system will be able to fly. FAR 91.225 exempts aircraft with no electrical system from many of ...

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