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Questions tagged [taxiing]

The process of driving an aircraft on the ground, e.g. from the gate to the runway.

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Are interlocked "traffic signals" possible/in use for taxiing?

I am a frequent viewer of the Youtube channel VASAviation which shows various interesting incidents regarding ATC. Recently there were two similar videos (first and second) where ATC directed a plane ...
user16790133's user avatar
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1 answer
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How do planes on taxiway get back to terminal after an accident?

When there is accident that blocks the runway, how do other planes that are on taxiways or holding points move back to terminal? After all, the runway is closed due to the accident and planes cannot ...
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May an airplane with folding wings legally taxi on the street?

In order for any vehicle larger than a bicycle to be street legal, it must be registered under the state/province's Department/Bureau of Motor Vehicles as a highway vehicle. There already exist light ...
CoastCity Lapse 00crashtest's user avatar
5 votes
2 answers
191 views

What determines the name of the runway if it is not active (for atc instructions)

I was not succesful with finding an answer to this anywhere on the web. Let’s assume we have multiple runways in the airport and ATC controller gives us instructions to cross certain runway that is ...
pedrouan's user avatar
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1 answer
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Are crosswind corrections during taildragger taxiing the same as with tricycle gear?

When doing crosswind corrections during taxiing with a tail dragger, is it the same with the tricycle gear or not? Confused with the elevator part.
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3 votes
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Taxiing with a crosswind

Let us say we have a right quartering headwind, we should “fly into the wind” so yoke to the right then that our right aileron will deflect up and left aileron down. How does this avoid the chances of ...
AerospaceX's user avatar
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Typical maximum airliner throttle settings during taxi

What is the typical maximum throttle setting during taxi of a big airliner, e.g., A350, B777, etc.? Thank you. Fabián
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5 votes
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When provided with a taxi clearance do you need to immediately comply or can you take your time?

I'm a student pilot and I'm just wondering on if I receive a taxi clearance at an airport then read it back can I wait a minute or two before I actually start taxiing or do I start to go immediately? ...
imp's user avatar
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What are the separation requirements on the ground?

What are the FAA regulations for aircraft separation on the ground, outside of active runways?
Anonymous Physicist's user avatar
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386 views

Can any aircraft do donuts under their own power without significant damage?

I was reading this question and trying to think of ways to park an aircraft tail-to-terminal without using reverse thrust, and this question popped into my head: Are there any aircraft that could, ...
Vikki's user avatar
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What would happen if you tried to take off in a vacuum?

What would happen if the pilot of a pressurized rocket-powered airplane-shaped vehicle attempted to take off in a vacuum? I would expect the plane to just taxi no matter what the pilot did; is this ...
Someone's user avatar
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How does a 10 second delay after switching on the APU BLEED prevent an engine stall while carrying out a one engine taxi on departure in the A320?

My question mainly pertains to the delay of 10 seconds. As per the A320 FCOM when performing a one engine taxi at departure before starting engine 2 a 10 second delay has to be catered for after ...
Jai's user avatar
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3 votes
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Why were taxiways marked with numbers (as opposed to letters) back in the day?

I learned through the USAir Flight 1493 and SkyWest Airlines Flight 5569 collision that many taxiways at KLAX were marked with numbers (e.g., Taxiway 45, Taxiway 33) instead of letters (e.g., Taxiway ...
Charles Nicholson's user avatar
1 vote
1 answer
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How fast can a Cessna 172 taco?

What is the highest speed at which a Cessna 172 can taxi without lifting off the ground? If you removed the wings, how fast could it taxi? (Answers only answering the first part are fine; I doubt the ...
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Has a plane ever run out of fuel while taxiing?

When planning a flight, the pilots calculate the fuel load, allowing for diversions, delays, etc. While listening to an ATC recording of 30 minute taxi times at JFK, I wondered whether a plane has ...
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What is this guy doing while walking along with the moving plane at the FRA airport?

While the aircraft was moving backwards (targeting takeoff), a guy was attached to it by a thread, probably "listening" to something, and was following the plane by walking at the same pace. ...
Déjà vu's user avatar
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What is "taxi speed" for an Airbus?

In the FCOM we can see a lot of "taxi speed", for example after landing: AT TAXI SPEED, ALL REVERSER LEVERS......STOW But what is taxi speed? Is there any definition or particular number? ...
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9 votes
3 answers
3k views

Apply back-pressure during taxi?

My CFI (PPL) has on a few occasions pointed out that I need to apply back-pressure during taxi, even if we're taxiing on the apron at ~5 knots. While I can understand the benefits of doing so during ...
Chris's user avatar
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12 votes
3 answers
5k views

Why does the Cessna 152/172 nose wheel turn only when the aircraft is moving?

According to the POH, ground control is achieved by a spring loaded steering bungee. But how does it work and why the nose wheel does not move when the aircraft is stationary?
Nish's user avatar
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How Do Airline Pilots Park Right on the Line? [duplicate]

I’m sitting here at the airport waiting on my flight and I’ve always wondered: how do airline pilots park those big birds (737s and above in size. I can understand smaller regional jets where you’re ...
Jon's user avatar
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What is the best way to move a touring motor glider over a wet grass surface?

In a flight club we operate an SF-25C (about 480kg empty). In fall and winter the surface (grass) of our taxiways often gets to wet so if we would move the aircraft we would damage the field and we ...
Chris's user avatar
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What does it mean when a hold short sign is out of service?

I prepared for "SELCAL" exam and in one of the routes I heard such information as RW 32 hold short sign at TWY L is out of service. I just don't understand this phrase. I appreciate it if ...
Cookie's user avatar
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1 vote
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Does center of gravity change between ramp weight and takeoff weight?

Most documentation gives percentage weight distrubtion between main and nose gear for ramp weight. I'm curious if this weight distribution would be the same for takeoff weight.
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Pilots use of the term "with" then a letter when talking to ground [duplicate]

In ground comms when taxiing a pilot may say for example: "Kennedy ground, DELTA412 HEAVY, is in KILO-FOX, short of ALPHA with PAPA". I get that this means they waiting a KF exit of the ramp ...
AnthonyWJones's user avatar
3 votes
1 answer
259 views

Does lack of a curved taxi-line indicate a turn is not permitted?

Does the lack of a curved taxiway centerline between two taxiways indicate that a turn is not permitted? Take for example the complex of taxiway connections at KATL here: 33.636153, -84.421919 (see on ...
a25bedc5-3d09-41b8-82fb-ea6c353d75ae's user avatar
2 votes
1 answer
402 views

Why is taxiing super slow after an ILS CATIIIB landing in almost zero visibility?

I have experienced my very first ILS CAT IIIB automatic landing at my own home airport Lucknow (VILK). I'm super excited but also have myriads of questions related to many unique procedures I saw ...
Avgeeker's user avatar
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55 votes
8 answers
11k views

Why don’t airplanes use turn signals?

Why don’t airplanes use turn signals like cars do? Would this improve safety for ground operations at uncontrolled airports? Could a similar concept be used to indicate in air maneuvers? For example: ...
TayE's user avatar
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26 votes
1 answer
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Are there any drawbacks to requesting progressive taxi every time?

Unless you know the airport like your own backyard, it seems like requesting progressive taxi would always be the safest option to essentially eliminate the possibility of taking a wrong turn or ...
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How serious is the problem of "stopping too far" next to the jet bridge?

In the answer to the recent question "How does an airliner adjust ...", there is the mentioning of the signal: "STOP TOO FAR". But what to do if you see this? In other words, if ...
h22's user avatar
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Has there been any attempt to use an underground cable system, a la a cable car, to tow aircraft along taxiways? [duplicate]

I've been looking at some proposals to try to reduce the time that an airliner's main engines are run at idle or near idle when taxiing to and from runways--a situation that uses non-trivial amounts ...
lapsedwondering's user avatar
0 votes
3 answers
534 views

Taxi to spot?? Hot spot? What is meant by this?

I heard ground controller at KPHL say taxi to spot so and so? What do they mean by this during taxi procedures.
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25 votes
2 answers
6k views

How can this kind of confusion about taxi instructions occur?

A few days ago, I (a student pilot on a solo) had landed on runway 9 for a full stop taxi back. The taxi instructions were "alpha to 27 remain on this frequency". I missed some words in between these ...
Hrothgar's user avatar
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How does ATC direct aircraft on ground from the parking to the runway?

For medium size airports, ATC will direct aircraft with a single message like this "Taxi to runway 29 via Papa, Sierra". I was wondering if it was the same thing for bigger airports (like ...
FlyingRandomGuy's user avatar
5 votes
2 answers
5k views

What is the difference between stopbars and Intermediate Holding Position Lights?

I know that stop bars continuously light red and stand at before taxi route joint, holding points, or at the runway entrance, but what about the Intermediate Holding Position Lights? How can we ...
Volkan Eroğlu's user avatar
11 votes
3 answers
5k views

What is the name of the movement which is carried out by plane beginning from the runway and ending at takeoff?

What is the name of the movement which begins after the plane lines up on the runway and takeoff clearance is received, and ends when the plane lifts off from the runway? Is it also called as 'taxiing'...
Volkan Eroğlu's user avatar
4 votes
1 answer
2k views

Why is engine #1 still used when taxiing with one engine?

According to the answer in this post Taxiing with one engine: Is engine #1 always used or do they switch? Engine #1 is used because it pressurizes the green HYD system which powers the Nose Wheel ...
dingdingdong's user avatar
2 votes
1 answer
1k views

Where are "standard taxi" instructions published? [duplicate]

Example: at KATL (Atlanta), the ground control sometimes gives taxi instructions as "standard taxi"; Where is that defined? Delta 2732 27-Right Lima Charlie "Standard Taxi." In that case, from a ...
Kent's user avatar
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5 votes
2 answers
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How much thrust is applied in a 737 to achieve taxi speeds?

I'd imagine not much, but maybe none? I wouldn't be surprised if the plane moves forward without brakes alone.
George Clooney In a Mooney's user avatar
9 votes
3 answers
3k views

When can a taxi clearance allow me to cross multiple runways?

I was just reading the FAA instrument procedures handbook and saw the paragraph below in Chapter 1. I'm puzzled by this, because I routinely get "Cross runways XX right and XX left on Alpha" ...
Foster Boondoggle's user avatar
2 votes
1 answer
4k views

What is the difference between "Bay" and "Stand"?

When should we use the word Stand and when Bay for ATC taxi clearance?
user44723's user avatar
7 votes
1 answer
854 views

Why does taxiing produce large lateral loads on the 747's engine pylons?

While reading through a bunch of old AARs recently, I found (in the context of a 1993 747 in-flight engine separation) this interesting tidbit: [...] Boeing engineers report that the modifications ...
Vikki's user avatar
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8 votes
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How are the 747-400 rudder pedals and tillers connected to the nose wheel?

The Boeing 747-400 Before Taxi Procedure says (emphasis mine): [...] Flight controls .............................................. Check C [...] Hold the nose wheel tiller during rudder check to ...
Bianfable's user avatar
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5 votes
1 answer
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Is an F-16 able to fire any of its weapons while on the ground? [duplicate]

I can recall at least one Hollywood movie, where this takes place (although not an F-16 in the movie). Is this at all possible? Can the F-16 fire its M61 while taxiing on the ground? What about other ...
AlphaCentauri's user avatar
2 votes
0 answers
205 views

Do visual docking systems improve safety?

Are there any studies that shows A-VDGS (Advanced Visual Docking Guidance System) is improving the safety of aircraft movements on airports?
Thor's user avatar
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10 votes
2 answers
1k views

Does taxiing in London City (LCY) happen on the runway?

I recently had a ride to LCY (London City). Awesome, by the way. They have only one runway (09/27) and no apparent taxiways. (Source: Google Maps) After landing, how do the aircraft get from the ...
PerlDuck's user avatar
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10 votes
1 answer
865 views

Is the taxi route omitted in low visibility (LVP)?

This video shows an auto land into Schiphol during bad weather / LVP (Low Visibility Procedures). After reporting vacated, the ATC instruction is quite short (around 2:45). Simply the gate number. (I'...
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28 votes
4 answers
8k views

Why are thrust reversers not used to slow down to taxi speeds?

In reading this question (Would more throttle when using reverse thrust reduce stopping distance?), it prompted me to remember that on many of my flights (typically on 737s or CRJ type aircraft), it ...
Milwrdfan's user avatar
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2 votes
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How to correctly interpret the taxi procedures in ICAO Doc 4444?

I have a question to ICAO Doc4444, Chapter 12.3.4.7, Taxi procedures for departure, c). My question is how to interpret the following, knowing that words in parentheses are mandatory, and words in ...
lem2015's user avatar
  • 21
2 votes
1 answer
498 views

What causes the nose landing gear knocking noise on a Boeing 777 while taxiing?

The NLG knocking noise heard on taxi-in to stand, what could cause this knocking noise?
Sam's user avatar
  • 21
6 votes
1 answer
318 views

NOTAM - What means "no shoulders along taxiways" in German?

can anyone explain to me what "no shoulders along taxiways" means? I know what shoulder markings are, but I don't know how to translate them. Are there German people? :) Thank you!
epus's user avatar
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