Questions tagged [approach]

The phase of flight in which an aircraft is lining up with the runway and preparing to land.

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1
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1answer
128 views

Can you continue an ILS approach when weather falls below minimum?

If, after passing the final approach fix, weather deteriorates so that the reported values are now below required minima, is it allowed to continue the approach?
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2answers
86 views

During an instrument approach, what are the obstruction clearance given?

I was wondering wether each segments of the approach has different minimum obstruction clearance? (E.g. initial, intermediate and final) From both terrain and man made obstacles. If possible i would ...
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2answers
133 views

Approach when weather condition is below minimum

If airport weather condition is below minimum, but pilot report that flight weather condition is above minimum, Does controller can issue approach clearance to pilot? If weather condition get worse ...
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2answers
232 views

Can a 737 be on final at 160 knots, and also touchdown at 160 knots?

Would the 737, going 160 knots, float a bit more before touching down?
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3answers
215 views

Why can a localiser be used without a glideslope, but not vice versa?

An ILS consists, at its most basic, of two components: a localiser (to provide lateral guidance) and a glideslope (to provide vertical guidance). The two are typically used together, for an ILS ...
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1answer
116 views

What is the lowest RNP approach requirement without being RNP AR?

I was recently told by a friend that as soon as RNP for an approach is below the 1.0/0.3nm standard that it is required to be RNP AR. At least here in Australia, a curved segment anywhere on the ...
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1answer
89 views

Why is the JAC VOR an Initial Approach Fix for the KJAC VORDME Rwy 19 Approach?

See the attached KJAC VOR/DME Rwy 19 approach. QUESTION: Why is the JAC VOR an IAF for this approach? There isn't a procedure turn to use this VOR as a functional IAF, and the twin peaks (13,770' ...
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3answers
4k views

Why do aircraft leave the cruising altitude long before landing just to circle?

Often flights will leave the cruising altitude long before the actual landing. They will go down to a couple of thousand feet and stay at that altitude and circle for quite a while in waiting loops ...
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24 views

How much of an instrument approach must be in instrument conditions in order to qualify for currency as actual instrument? [duplicate]

I've always wondered if there is any guidance on logging of instrument approaches in actual conditions when the conditions are only actual for some portion of the approach. Hypothetical example: A ...
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2answers
344 views

Are go-arounds prohibited at St Barth (TFFJ)?

The description of this video claims that past a certain point — which is around the turn to final — on approach to TFFJ (St. Barth) runway 28, a go-around is prohibited. That sounds strange. I ...
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56 views

Ground Speed On Approach [duplicate]

I'm not a pilot, just a bit of frequent flyer and moderate aviation enthusiast. I sometimes get on Flightaware and check on the flights I frequent and see the path that was taken and flight time. I ...
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1answer
520 views

How will the lack of ground stations affect navigation?

VOR's and NDB beacons are getting closed day by day and they were used for making and then referencing the holding patterns and the entry procedures and how they were named. So How will we make ...
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1answer
194 views

Does ATC clear IFR helicopters for a visual approach if landing at a helipad on a high-rise?

I'm guessing that most helipads on downtown high rises don't have any instrument approaches. If a helicopter is on an IFR to a helipad without any instrument approaches, does ATC just clear them for ...
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1answer
246 views

Is there any plan to create GPS approaches to water areas for seaplanes?

Is anyone working on differential GPS approaches for seaplanes? They are a largely ignored resource with great capabilities for certain remote places
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1answer
158 views

Where does the factor 1.3 for Vapp come from?

The approach speed Vapp is usually given as 1.3 * Vs0, or 1.3 times the stall speed in landing configuration. Why 1.3? What created a consensus of 1.3 * Vs0 as the generally accepted textbook ...
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5answers
4k views

Why can't wing-mounted spoilers be used to steepen approaches?

In a comment on this answer to my previous question about tail-mounted airbrakes (lack of), @JohnK states: You won't see flight spoilers (speed brakes) being used to steepen approaches. You have to ...
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2answers
196 views

Do modern aircraft automatically manage the deceleration to Vref?

Typically in most aircraft, the pilot manually reduces the speed gradually until reaching the landing zone/flare zone. Modern aircraft have FMC. Does the FMC automatically manage the speed gradually ...
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3answers
573 views

What prevents the use of a multi-segment ILS for non-straight approaches?

An ILS, consisting of a localiser beam to provide lateral guidance (which can also be used on its own for a non-precision approach) and a glideslope beam to provide vertical guidance, is (currently) ...
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2answers
728 views

Did Kai Tak have a straight-in approach to runway 13 for higher-performance aircraft?

Runway 13 at Hong Kong’s Kai Tak Airport (closed in 1998 and replaced by the current airport at Chek Lap Kok) had a hideously difficult approach in which pilots would fly in from the west, following ...
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3answers
220 views

How does one tell whether a corkscrew approach is stabilized or not?

A corkscrew approach is an unusual type of approach used in places like BGW/ORBI to minimise an aircraft's exposure to antiaircraft fire on the way down; it involves staying at cruise altitude until ...
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2answers
4k views

Should you blow through the final approach course if the ATC forgot about you? [duplicate]

So you were being vectored for the final approach course (ILS/RNAV/whatever) and the controller forgot about you for some reason (busy). Assume you called them and they were not replying. Also assume ...
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659 views

Why, and how, are barometric altimeters accurate enough for approach and landing?

The barometric altimeter is used as the primary altitude indicator during approach and landing right up until the aircraft crosses the threshold (after which the radar altimeter takes over and makes ...
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3answers
191 views

How to reverse course when there is no published course reversal?

Coming from the SW on the RNAV RWY 15 KONO, how do I align myself with the final approach course? There is only one IAF and no published course reversal. Is it up to me how I get established inbound?...
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1answer
237 views

Why do some aircraft approach the runway with a long detour and others with a short one? [closed]

I am currently analyzing flight data. For some flights landing at Frankfurt Airport. As you can see in the graphic, some of the planes fly out about 100km to then fly again towards the runway. Some ...
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1answer
391 views

Is the callout “minimums” on the 737 used to describe DH on precision approaches

So, I have heard that decision height (DH) is used to signify the height on a precision approach which the pilot has to decide whether to continue or not. But, in the 737, I only hear "approaching ...
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159 views

When to turn during missed approach when MAP not identifyable

Not a duplicate of When to go missed on a non-precision approach? please read carefully before duplicating this contains some subtle points. Reposting after clarifications that emphasise this is a ...
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0answers
245 views

Are the terms “Coupled approach” and “Hand flown approach” strictly defined?

I was looking on SE and also Google for the answer, but couldn't find anything. My question is when to log an approach as coupled or handflown? All of the approaches I fly are CAT I but the aircraft's ...
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1answer
68 views

Learn in-depth about airplane operations [closed]

Currently seeking a book or manual that teaches a civilian how a cargo aircraft operates and what it's pilots do, say a 787. Preferably a high-level overview at a per flight phase: Pre-flight: Flight ...
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1answer
362 views

Instrument approach DME VS instrument approch ILS DME

what is the diffrence of Instrument Approach DME and Instrument Approach ILS DME? Is it same as LOC DME APCH and ILS DME APCH?
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1answer
687 views

Does ATC prefer ILS over RNAV?

Listening to APP for several major (US class B) airports, it seems that every flight is vectored to intercept the localizer. Is it really possible that 100% of flights filed an ILS approach? If so, ...
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1answer
312 views

RNAV (RNP) Approach Height Loss Question?

While viewing the following approach chart, which is an RNAV(RNP) CAT C Approach, there are several landing minima, stating a HEIGHT LOSS OF 50' AND 150', what does that specifically mean?
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1answer
3k views

What is timed approach?

I have tried to find what timed approach is, but I cannot find any reference to it. Could you let me know what it is and when it is used?
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0answers
134 views

Diversions because of fog: What are the reasons?

It's fog season again around my local airport MUC (EDDM), and I have noticed a number of diversions recently. Some planes were holding a bit before attempting to land, performed a go around and then ...
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1answer
317 views

If an approach chart says “GPS required”, do I need GNSS capability to fly it?

If an aircraft is /Y, /C, or /I (RNAV no GNSS), can they fly an approach chart that says "DME/DME/IRU or GPS required"? GPS in my mind is a GNSS. If you don't have DME/DME/IRU and are RNAV (non-GNSS) ...
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2answers
1k views

What does the letter “D” next to the VOR frequency and name mean?

In most charts there is the letter D next to the VOR freq. What does this mean? I assume the H and L in brackets in other charts mean high and low VORs (correct me if im wrong). But what does the D ...
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1answer
277 views

Are there any airports that require arriving/departing flights to fly under an obstruction?

Are there any airports with approaches and/or departures that require pilots to fly under an obstruction at some point (thus meaning that, for at least a short segment of the approach or departure, ...
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1answer
190 views

What is the source for the “rule” forbidding configuration changes below 200ft AGL?

I keep hearing from countless instructors, and even some DPE's, that in single engine aircraft, no configuration changes are allowed below 200AGL (i.e. flaps). Some have also stated that this is ...
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4answers
307 views

Do different planes (category) aim differently in the 'final stages before flaring'?

(youtube.com) Do different planes (categories A through D) aim differently in the final stages before flaring? I'm asking about precision runways. The reasons I ask: An ILS' glide slope is not ...
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5answers
6k views

Do any airports have a steeper standard approach than London City?

Watching the CS100 certification of the 5.5deg steep approach into London City, I wondered if there were any airports with steeper standard approaches. By standard I mean published. I have seen very ...
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3answers
824 views

Why would a pilot on final to a towered airport not speak up when ATC clears another aircraft to land on the same runway, without mentioning them?

Every time I watch AOPA's Accident Case Study video Communication Breakdown, I'm left wondering. Here's an aircraft (in this case, '1DA) on final approach for landing on a towered airport, when ...
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1answer
264 views

Is it possible to load (and not activate) the approach procedure on a Garmin 1000 or 430?

I noticed sometimes when I fly with a G1000, or Garmin 430 and am doing multiple practice approaches I can't always load my next approach. It forces allows me to activate the approach, which would ...
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1answer
538 views

Why wouldn't KJFK offer the ILS for 22L?

(Source: Flightradar24) The above was from last Sunday around 17z. I was watching FR24 with the ATC feed. The airport was operating in 'arrival priority' with approaches to both 13L (Canarsie) and ...
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1answer
1k views

Why are there many different approach lighting systems?

Why not just have only 2 or 3? What's the point of having such a number of different configurations? What's the practical application of each lighting scheme? I mean, do they really help pilots in a ...
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0answers
89 views

Are ASR and PAR approaches commonly used in Europe?

How common are ASR and PAR approaches these days? Are they still practiced anywhere in Europe?
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101 views

Approach speed Exceedance

What are the possible effects when an aircraft exceeds its approach speed limitations? i.e. unstable approach? Go around? Runway overrun I know a lot of factors come into play, however, I wish to ...
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2answers
342 views

Does having lead-in lights in sight allow descent below MDA?

Does having lead-in lights in-site during an approach that includes them allow for a pilot to descend to 100 feet above the touchdown zone elevation? 14 CFR 91.175 allows a pilot to make such a ...
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0answers
170 views

What are the differences between FCLP markings and equipment and the LA on a ship?

Most Naval and Marine Corps Air Stations have these markings on at least one or more of their runways: It’s a Field Carrier Landing Practice (FCLP) area and used to maintain proficiency amongst ...
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1answer
351 views

Could a 'wind wall' help to reduce the wind shear problem at St Helena airport?

I've seen a fair number of articles online about "The World's Most Useless Airport" (St. Helena, HLE/FHSH), which was unable to open to full commercial flights (as was the intention) due to the wind ...
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1answer
122 views

Why do some IAPs lack an Intermediate Fix and/or include other fixes between Final Approach Fix (FAF) and Intermediate Fix (IF)?

I have noticed that some Initial Approach Procedures (IAP) do not mention an Intermediate Fix, but they do include at least one fix before the Final Approach Fix. Take, for example, this IAP of the ...
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4answers
1k views

Why would the Speedbrake be required for such a long time on approach? [duplicate]

As far as I was aware, the Speedbrake is designed to slow the aircraft down. On landing, I do understand why they are required. Once the aircraft has hit the tarmac, they are deployed to 1) slow the ...