Questions tagged [runways]

A runway is a "defined rectangular area on a land aerodrome prepared for the landing and takeoff of aircraft" (ICAO definition).

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25
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2answers
6k views

What is this runway marking on Kirkwall Airport's runway?

What are these markings on Kirkwall Airport's runway? From where they are on the runway, they seem like the touchdown markers, is that what they are?
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2answers
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Why would the runway separation for parallel triple simultaneous precision approaches be dependent on airport elevation?

Based on FAA advisory circular AC 150/5300-13A, Airport Design, when operating triple simultaneous precision instrument approaches the parallel runway separation could be reduced from 5000 feet to ...
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2answers
553 views

Are there any runways that aren't labeled reciprocally to each other?

Runways are generally labeled by their magnetic azimuth between 01 and 36. This means that runways are normally labeled on each end with a number that is reciprocal to the other by 180 degrees. Do ...
4
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1answer
875 views

How is the ALSF-II approach lighting system built and powered?

The ALSF-II approach lighting system includes lead-in groups, a decision bar, red side bars and sequenced strobes: ALSF-II approach lights for KRFD - Chicago-Rockford Intl (source). Does anyone know ...
9
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1answer
1k views

How close is an obstruction allowed to be in an instrument approach?

Inspired by this answer, and the comments that followed. City politics aside, i.e. hypothetically, can KBOS rwy 14 be used for landing aircraft that don't comfortably need more than 5,000 feet of ...
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3answers
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Why does Logan Airport's Runway 32/14 only have arrivals on the 32 heading?

I was going through this PDF document on Logan International Airport's runway usage and I saw that Runway 32/14 only has arrival activity. Why is that the case? Is this the the reason or part of it ...
5
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1answer
3k views

Why do METARs report wind relative to true north rather than magnetic?

Why isn't the wind in a METAR given in magnetic heading, to match the runway numbers? Especially for areas where there is a double-digit magnetic declination. Secondary/optional question: does the ...
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2answers
3k views

What factors are considered when a runway is planned?

What environmental factors are considered when a new runway construction is planned (e.g. winds, weather, sun direction, etc.)?
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3answers
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Is there a minimum distance between a runway and a public road?

Does the FAA require a minimum distance the between the TDZ of a runway and a public road? The reason I ask is because an aircraft landing at a small GA airport (Garnett Municipal, K68) came across ...
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1answer
232 views

How can a 777ER fly from the 9000 ft runway at Bologna (LIPE)?

How can a 777ER be operated from the Bologna runway which is only 9000ft? I recently took the Emirates flight and the aircraft was full. I suppose that it was close to max weight. According to wiki ...
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2answers
605 views

Can you be cleared to cross a runway *behind* an aircraft on takeoff?

Taking KEWR as an example, let us say that aircraft are taking off from 4L at N and landing on 4R. Can I be cleared to cross 4L at say V, behind the aircraft taking off on 4L, without interrupting ...
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1answer
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Is the Runway Visual Range (RVR) communicated to the pilots?

During CAT IIIA/IIIB approach where the decision height is 50 ft/0 ft, if the Runway Visual Range requirement for the approach is not met, what is a pilot to do? I mean, 50 ft (or even 100 ft?) seem ...
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0answers
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How are runway changes performed when radar vectoring is available? [duplicate]

When the time comes to make a runway change, let's say because wind has changed direction, how is this performed? Aircraft might already be on finals, what does ATC do? Do they ask them if they want ...
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2answers
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Southwest corner of LAX has peculiar airplane parts, what is this area?

In the Southwest corner of LAX (at the intersection of Imperial Highway and Pershing Dr.) there is a strange looking area that appears to have some abandoned airplane parts. Also, it looks like a road-...
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3answers
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What is the cause of tire marks at the extreme ends of runways?

At LAX, planes (usually) take off from east to west. On the west end of the runways there are dark tire marks. What is the cause of thesey tire marks? Failed take offs? Late landings? Something else? ...
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6answers
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What is the biggest airplane that does not need a paved runway?

Since we don't need a control tower for instrument landings I was wondering what else that is thought to be needed could be skipped. I know some small general aviation is done on grass runways and I ...
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1answer
327 views

Can we use the term CONTAMINATED RUNWAY for other meanings, such as: oil spill or debris on the runway?

Contaminated Runway is used to say that the runway surface area (25%) is covered by 3.0 mm or more of: water, slush, snow and ice. But is it also possible to use this term to say about: heavy rubber, ...
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1answer
12k views

What's the difference between overrun and overshoot landings?

Is there a difference between overrun and overshoot landings or are they exactly the same, talking about a runway excursion?
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1answer
2k views

What is the purpose of Runway Grooving?

What is the purpose of runway grooving? How does the airport drainage system work? Why do airports remove rubber from the runway?
8
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1answer
1k views

Are ICAO and FAA airport signs and markings the same?

Are ICAO and FAA airport signs and markings the same or are there differences? If so what are the differences?
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1answer
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Why are the runways on Denver Int'l very separated from the terminals?

As you can see in the airport diagram the runways are very separated from the terminals: I've found a similar question about Schiphol runways and one of them is very separated because of the noise. ...
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11answers
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Is it possible to take off on an elevated short field by "falling"?

I understand this may be a dumb question to ask, but - in the opening sequence of Golden Eye - James Bond chases after a plane that has rolled off the side of a cliff in his motorcycle, and then ...
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0answers
187 views

Why are some runways apparently wobbly? [duplicate]

In this youtube video, there are several examples at 0:34, 1:15, and 1:27. You can see the runway looks wobbly. That last one appears to have at least three wobbles in it. These are runways on which ...
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2answers
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What are runway Aiming Point markers used for?

I'm interested in knowing what aiming points on runways are used for: Why do some runways have aim points and some do not? We say that pilots must use the maximum length of the runway. Therefore, why ...
2
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1answer
285 views

Is white/brown-out effect hazardous during the landing roll out?

Landing on unpaved runways or runways covered by snow or dust causes a white/brown-out visibility restriction. Does it disrupt the pilot's visibility during the roll out in a fixed-wing aircraft?
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5answers
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For what reasons might a taxiway be mistaken for a runway?

In this article, an airliner landed on a taxiway instead of a runway. What might be the reasons that a pilot can mistake a taxiway for a runway? (I mostly know the answer for this question, but I ...
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1answer
6k views

How are runway conditions measured?

Which method is used to measure the runway conditions? Is it impossible to land on a contaminated runway?
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3answers
2k views

Which came to be first - bigger airplanes, or longer runways?

I'm generally speaking about airports with runways long enough for airliners, be historic or still in use. In order not to turn this question to a chicken-egg discussion, here are my points: Would ...
8
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1answer
3k views

What are the FAA regulations on grass airstrips?

What are the FAA regulations on grass airstrips like grass height, lighting, necessary aircraft equipment, and the like?
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4answers
11k views

When an airport has helipads, why would a helicopter take-off or land on a runway?

At an airport with both runway and helipad (KASH) I have seen both being used for helicopter takeoffs and landings. Is there anything that causes the helicopter pilot to choose to use the runway ...
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2answers
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Why would aircraft take-off in the opposite direction as landing despite wind direction?

I have visited and flown out of Harare International Airport, Zimbabwe a number of times and the thing that always baffles me is: Why do aircraft use runway 23 to depart, but runway 05 to land? At ...
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2answers
5k views

Why would an airport use crossing runways for takeoff and landings?

I was listening to some RealATC this evening and came to this one about an accident at LaGuardia airport. This question is not about the accident in any way, but I am using this video because it has ...
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1answer
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What are the specs for runways at international airports? [duplicate]

1) What are the materials that international airport runways are made of? If runways consists of several layers, what are they made of, and what is their depth and other specifications? 2) What are ...
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1answer
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What's the point of having ILS on runway signs?

Runway signs show the ILS category next to the runway designation. But if you flew and didn't drive to the airport, you already know (hopefully). Either way, you are taking off, so you don't really ...
6
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1answer
392 views

Conducting a Precision Approach on a Non-Precision Runway - What are my limitations?

Let's take ILS, for example. As stated in the FARs, the minimum RVR for a CAT I ILS approach would be 2400ft (1/2 SM) for a runway that does not have TDZ and Centerline Lighting. So, that is one ...
32
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3answers
8k views

Why can't runway 18 at Frankfurt Airport accept takeoffs or landings in the opposite direction?

Runway 18 at Frankfurt Airport is one example of a runway which is numbered on only one side. Aircraft can only takeoff in the 18 direction, and cannot takeoff in the 36 direction, nor land in any ...
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2answers
1k views

What considerations should be taken into account for landing on gravel airstrips?

For the pilot of a Cessna or Piper 4 seater, what techniques and other considerations should be given before operating on a gravel/dirt airstrip?
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2answers
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How are unpaved strips created and maintained?

I'm under the impression that some large craft are rated for "unpaved strips", which appear to be either some sort of gravel or perhaps dirt. The 727, and this runway, being a good example of this: ...
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4answers
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How heavy is too heavy to land on a grass strip?

This is actually a tricky question, because it's not just about gross weight, but about how much weight each individual tire imparts into the ground. This, of course, depends on the design of the ...
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3answers
7k views

Why don't airport have heated runways to deal with winter conditions?

It is for years that I ask myself as a frequent flyer why there is no Airport using a system, like built-in electrical resistances on Runways to avoid Delays/Cancellations and even closing Airfields ...
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2answers
3k views

Are there runways that are numbered only on one side?

For all runways I've known or seen, they're numbered on both sides, with the number on the opposite direction differ by 18. Are there runways that are numbered only on one side? I.e. due to certain ...
8
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2answers
788 views

How can I find our FAA airport designation number?

Several years ago we were issued an airport designation number by the FAA. The information was lost when my father died. How do I find out what our designation number is?
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1answer
3k views

Are runways "one-way"? [duplicate]

Do runways always handle traffic in the same direction? Another question asked how runways were labelled left and right (8L and 8R, for example). But of course "left" and "right" depend on your ...
8
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1answer
1k views

More than one runway with the same heading. How are they labelled? [duplicate]

Given that runways are labelled by magnetic heading. What happens in airports that have more than one in the same direction? How are they labelled? Are there any such airports?
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3answers
3k views

In the U.S., Is it ever legal for an aircraft to occupy the runway turnaround area while another is taking off or landing?

In voretaq7's answer to the question Is there a name for the area for aircraft to back track near the runway threshold?, it is mentioned that runway turnaround areas are considered part of the runway ...
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2answers
10k views

Why are magnetic headings used for designating runways?

Runways are numbered based on compass heading. Why? Does this help pilots in locating the runway, even in today's GPS age? Or are there some other technical reasons behind this?
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2answers
2k views

Is there a name for the area for aircraft to back track near the runway threshold?

Some airports have an area, on the threshold, used to back track the aircraft, mainly because of the their wingspan, they look like a half wheel. Is there any designation for this area?
11
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1answer
4k views

How is a runway inspection carried out?

During the Concorde's takeoff run, this piece of debris still lying on the runway, was run over, cutting a tyre and rupturing it. A runway inspection, scheduled for 15h, had not been carried out. ...
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2answers
915 views

Is reverse thrust needed on a long runway [duplicate]

Every time I have landed on a airplane reverse thrust is needed, but what if the runway is 18,000ft long. Because if the runway is longer couldn't you save fuel by not using the reverse exhaust
9
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1answer
746 views

What are the safety concerns and efficiency benefits of two in-line runways?

Heathrow Hub is an independent proposal to expand capacity at Heathrow Airport by extending both of the existing runways up to a total length of about 7,000 metres and dividing them into four so that ...

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