Questions tagged [clearance]

The permission from air traffic control to take an action, e.g. to land on runway 5.

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3
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1answer
113 views

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
2k views

Do seaplanes need to get clearance for takeoff?

Do seaplanes need to get clearance for takeoff? Do they have ATC? How do seaplanes get clearance to takeoff?
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2answers
146 views

Is it possible to fly VFR above the IMC floor or VFR-On-Top without a specifically filed route, both using an IFR flight plan to go through IMC?

*Note, I'm not trying to recommend this, but I am curious if it can be done. In this question, Steve V.'s answer made me wonder about this: One time during my commercial training, my instructor and ...
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2answers
564 views

How late can a landing clearance be given?

I regularly fly VFR in an (EASA-) airport where the tower is sometimes rather busy and the frequency full which led a few times to me receiving landing clearances as late as 10-20ft AGL above the ...
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1answer
612 views

What is an ATC clearance? Does a VFR flight have to get a ATC clearance?

1) Do all flights have to get an ATC clearance to fly in controlled airspace such as class C airspace? I know that IFR and VFR flights are provided with ATC service in class C airspace, but I am not ...
8
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1answer
1k views

What does “to the numbers” mean in landing clearance?

Last night I was left downwind, abeam the tower, on my second circuit of the pattern. The controller said “helicopter xyz, cleared for the option runway 24, to the numbers”. I already had been given a ...
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3answers
192 views

If cleared to cross a runway and expedite but are slow to get away, are you obliged to stop?

Suppose ATC says "Big Jet, cleared to cross runway 36, expedite" and you acknowledge "Cross runway 36, wilco, Big Jet". As you start to move forward you immediately realize that you are unable to go ...
16
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2answers
978 views

What are the procedures for flying supersonic over international waters?

Supposing I owned a supersonic aircraft eg a MiG-21 and wanted to fly the jet out into international waters for a supersonic speed run. Are there any particular ATC procedures for doing so?
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2answers
490 views

Does Clearance Delivery operate in the same way for airports in Bravo, Charlie and Delta airspace?

Something tells me that Clearance Delivery might offer different instructions at airports within Bravo, Charlie, and Delta airspace, e.g. if I take off VFR from KLAX vs from a class Delta out in the ...
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1answer
169 views

When do I have to contact Centre when departing/arriving at an airport with an ATF?

I'm looking at St-Frédéric airport in Quebec, Canada (CSZ4) and specifically at the "COMM" section. It says that there is an Aerodrome Traffic Frequency (ATF) on 122.8 but it also seems to say that ...
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0answers
64 views

How hard is it to fly a US-registered private jet over Cuba? [duplicate]

I know that commercial airlines have airspace passage agreements that allow them to fly over Cuba, but what about private jets? Is it easy for a pilot of a US-registered private jet departing from ...
7
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1answer
793 views

For how long is an engine start clearance valid?

If a pilot receives a clearance to start the engines, is the clearance void if he doesn't start them within a certain amount of time? How much time is allowed for starting the engines and where is it ...
3
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1answer
425 views

Can I get pop-up IFR clearance to waypoint (intersection)?

Let's say I departed from the airport to fly to the practice area (VFR). However, there is a thick cloud layer between where I am at right now and practice area. I already got a report that practice ...
4
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1answer
172 views

Is a clearance needed to depart a helipad in class B airspace?

I have noticed statements like the following on sectionals: This would seem to suggest that a clearance is needed to "depart" any helipad, even if you are staying under the wedding cake. Is that true?...
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2answers
555 views

What are ATC's considerations when they instruct to intercept final approach course instead of simply clearing for approach?

When ATC provide radar vectors for an instrument approach, they sometimes instruct pilots to intercept the localizer or final approach course before giving an approach clearance, and other times give ...
1
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1answer
759 views

How is the phraseology of IFR clearances different between the US and Europe?

In this question, a comment says that the phraseology of IFR clearances is very different between Europe and the US: especially the VFR phraseology (but not only) is really different in europe ...
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2answers
2k views

Which clearances are issued by ATC without the pilot requesting them?

Some clearances are only provided after specifically requesting them, such as the departure, engine-start, taxi or oceanic crossing clearance. Line-up and Take-off clearances are issued once the pilot ...
8
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3answers
3k views

When is the descent clearance requested from ATC?

Is there a rule / Standard Operating Procedure as to when request the descent clearance during cruise flight? Something like one minute before reaching the Top of Descent point?
13
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2answers
3k views

What is the correct phraseology for changing the runway of a landing clearance?

In the liveATC clip on this YouTube video, an American Airlines 767 arriving at SFO (San Francisco International) had been cleared to land on 28R, but, apparently while already on final, was told to ...
11
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1answer
662 views

Why wasn't Solar Impulse 2 cleared for takeoff?

I've recently been watching videos of the Solar Impulse 2 (HB-SIB) flights, and I noticed that on several occasions, instead of giving clearance for takeoff, the tower told the pilot that "departure ...
18
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8answers
2k views

Is it bad form to call “ready to depart” when you know you won't be cleared yet?

My local aerodrome is towered and has parallel hard and grass runways. Simultaneous parallel departures or landings are not normally allowed. On one occasion we had been instructed to "line up and ...
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2answers
847 views

When has a pilot legally accepted an ATC clearance or instruction?

At what point is a pilot considered to have accepted an clearance or instruction? Upon simple acknowledgement (e.g., Roger or ...
4
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1answer
2k views

What IFR clearances may a pilot obtain from ATC directly without a pre-filed flight plan with FSS?

I have known two types IFR clearance that a pilot may request with flight plan filing. Pop-up clearance: A pilot on VFR requests an IFR clearance to destination airport. ATC grants a clearance on a ...
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2answers
1k views

How do I know if an arrival procedure (STAR) clearance includes altitudes?

Air traffic control (ATC) can issue a standard terminal arrival route (STAR) to aircraft entering the terminal environment. The STAR usually communicates a predefined route of flight (fix1, fix2, fix3,...
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4answers
3k views

Does a request for a Pop-Up IFR clearance constitute filing a flight plan?

Introduction Pop-up IFR clearances are an accepted way to transition from VFR to IFR flight by obtaining an IFR clearance. They are well documented from a controller's perspective in this Tarrance ...
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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?
5
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1answer
764 views

What is meant by the term “Code on request”?

I recently flew from a small airport under a Bravo shelf into the nearby Bravo airspace above. When I advised the ground controller that I was doing as such, he cleared me to taxi, then added the ...
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3answers
2k views

What criteria does ATC apply to determine if an aircraft is established on the localizer if the pilot does not report it?

How close in time or distance will ATC let a pilot fly to the localizer, before cancelling the approach clearance, where the pilot has not reported being established? Is it the controller's call when ...
6
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1answer
377 views

Which FAR/AIM addresses Shortest Turn to Assigned Heading vs Runway Traffic Pattern?

Today I was in a simulator on runway 20R at KSNA. ATC gave me a VFR clearance and told me to fly heading 080 on departure. The runway has right traffic. I turned right and was told by ATC I should ...
27
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5answers
6k views

When is an aircraft cleared to land?

In Is there a minimum separation between a landing aircraft and another crossing its runway? it was explained that once an aircraft has clearance to land, that runway is reserved for the exclusive use ...
6
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1answer
2k views

Why was this helicopter denied entry to Class B airspace?

This question is somewhat related to this other one. I listened to this exchange between a helicopter and Newark. The helicopter wants to land at Newark. The controller tells the helicopter to ...
15
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1answer
7k views

How do you open and get a IFR clearance while in the air?

I once had a traffic controller give me a hard time about how I requested IFR clearance once in the air. I had previously filed an IFR flight plan, and took off from my untowered home airport. On ...
16
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2answers
18k views

How do you request a “pop up” IFR clearance?

If you are flying VFR into deterioration weather conditions and would like to continue the flight under IFR, or you would like to climb to a better altitude but are restricted by a cloud layer, what ...