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Questions tagged [ground-operations]

Servicing an aircraft on the ground before or after flight

2
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0answers
86 views

Can 7 AKE containers adjacent to each other be securely locked in a 777-300ER's aft cargo bin?

Is it possible to securely lock 7 AKE (LD3) containers adjacent to each other in a Boeing 777-300ER's aft cargo bin from position 31 to 41 (41 included)? According to my experience it's impossible to ...
0
votes
1answer
51 views

What's the difference between CPM and LDM?

I know CPM is cargo pallet message and LDM is load distribution message, but what's the difference between them ?
0
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1answer
105 views

Does the FAA allow a jet bridge to approach an aircraft that has engine #2 running?

Does the FAA allow a jet bridge to approach an aircraft that has engine #2 running?
0
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0answers
109 views

What is DPI? How is it Useful? And How does it work?

I have heard of DPI (departure planning information) status for a flight. I wanted to know what is this Status for? How is it computed or determined? What are the different status for it if any and ...
0
votes
0answers
49 views

What is Remote Holding and what is the link between Remote Holding and De icing and Off block of flight?

I wanted to know the sequence events before the flight is taxi out to Runway? Can it have a request for Remote Holding ? If so when is it before Off Block ? For Deicing Is it requested before or after ...
3
votes
1answer
222 views

What if the tower Is obstructed by clouds?

I know towers use radar to watch aircraft, obviously. But what about ground controllers? What if their view is obstructed by a low cloud level/fog? Is there such a thing as ground-based traffic ...
2
votes
1answer
128 views

Are there specific names for airport vehicles used for de-icing?

Do de-icing vehicles used at airports for de-/anti-icing procedures have special names? I-ve searched the internet but have not found the exact names of these vehicles.
3
votes
1answer
142 views

How do typical ground marshaling signals differ for helicopters?

There are common hand signals used by ground crew for fixed wing aircraft like 'taxi forward', 'spin up engine #1', 'turn right', or 'stop', for example: At most airports, general helicopter traffic ...
1
vote
1answer
126 views

Can an increased current rating of a Ground Power Unit damage an aircraft? [closed]

Assuming you are working on an Aircraft, where the Ground Power Unit (GPU) is rated at 28V DC with max. 1000 amperes. What is the danger involved if your are to increase the current rating of the GPU ...
5
votes
1answer
172 views

Any FAA or other regulations prohibiting taxiing between parked aircraft?

So the other day I was getting checked out at a local FBO, after returning to the ramp, instructor told me to taxi between two parked (tied-down aircraft). It was a tight squeeze but I taxied at about ...
9
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0answers
305 views

Denver International Airport pneumatic tube systems

Wikipedia says: Denver International Airport uses many pneumatic tube systems, including a 25 cm diameter system for moving aircraft parts to remote concourses, a 10 cm system for United Airlines ...
4
votes
2answers
167 views

How is the type of deicing fluid chosen and how much time is required for application?

From my understanding there are 4 different types of deicing fluids. How exactly is it determined what type of fluid needs to be used? How much delay does every type of fluid cause on average? What ...
16
votes
3answers
4k views

Why ground a plane while fueling?

Why does a plane need to be grounded while fueling, but we never ground our cars? Does the potential for a spark magically exist for an airborne vehicle but not for an earth bound one?
3
votes
0answers
65 views

What is the ground clearance area required for certification for a blimp/airship that needs to be tethered?

Does anyone know how much ground space needs to be allocated for keeping a blimp/airship tethered? I assume it is likely a circular area with the diameter being (2 x total length) + safety factor.
2
votes
1answer
369 views

How many crew members load and offload luggage on an Airbus A380?

What are the standard ground needs of a modern double-decker airline. How many crew members load and offload luggage on a modern double-decker airliner on any typical trip?
4
votes
1answer
389 views

What is the minimum and maximum number of jet bridges used on an Airbus A380?

What is the minimum and maximum number of jet bridges used for embarking and disembarking on a typical Airbus A380 trip and why?
1
vote
1answer
2k views

What is the difference between a Stand and Gate in Airports? How do they differ ?

I have seen Aircrafts having been assigned a Stand and Gate, So wanted to know whether the stand and gate are same physical location of airport or they are different but have link between them.
37
votes
1answer
7k views

Why don't El Al 747's stay at the gates at JFK?

I was recently travelling through JFK in New York City and saw the El Al 747, presumably arrived as ELY1 and departing as ELY4, sitting on the apron near terminal 4. What I saw was similar to as shown ...
0
votes
0answers
219 views

Does the safe taxi distance vary behind jet types for light aircraft?

It would seem a light aircraft taxiing behind a business jet could be closer than a B747. Perhaps there is a law (country or international) regulating power setting of a jet taxiing. One authors ...
6
votes
3answers
2k views

Why not tow aircraft instead of single-engine taxi?

To save costs, budget airlines could potentially eliminate the single-engine taxi that is standard. Companies are looking into things like electric motors on the wheels of airliners for taxi, which ...
4
votes
0answers
54 views

Airbus towing: is it necessary to switch on the Y HYD pump?

So, somehow our operations came up with a new requirement: if one of our A320 or A340 is being towed, we are supposed to switch on the Y ELEC pump (if the engines are off). This shall prevent ...
12
votes
3answers
2k views

Why aren't there brake lights on aircraft?

Why don't aircraft have brake lights so you can see when an aircraft in front is slowing down? I know there are air traffic controllers to control aircraft but they cannot do much about an aircraft's ...
1
vote
3answers
209 views

What is the real impact of biofuels on aviation?

I have seen tons of initiatives about using biofuels (like the ASTM D7566), but it is operative at large scale?, there is background info about demonstrative flights, but I don’t see a manufacturer or ...
3
votes
2answers
288 views

Are gate ramps sloped?

If you’ve ever seen an airliner park at its gate, you’ll likely note that sometimes it will move beyond slightly beyond its designated parking line. However, you may see that after the brakes are ...
4
votes
3answers
718 views

How are the services kept running on a plane without an APU? [duplicate]

I have seen several aircraft that do not have an operative APU, so how are lights, air, and other systems kept running?
10
votes
3answers
2k views

During single-engine taxi, how is the asymmetric power compensated for?

For various reasons (e.g. noise, fuel savings), some airlines allow single engine taxiing. Obviously, this produces an asymmetric thrust during the taxi. If the left engine is used, the aircraft ...
3
votes
1answer
329 views

What is the maximum nose wheel deflection angle?

What is the maximum nose-wheel angle of deflection on modern commercial aircraft such as the Boeing 787? Can it deflect to 90 degrees or even more?
3
votes
1answer
505 views

What is the speed during push-back?

What is the usual or maximum speed during the push-back procedure of large commercial aircraft (say, B737, B787)? Is it fixed or dependent on the aircraft type or weight or anything else? Is it ...
11
votes
2answers
2k views

Why must some aircraft get permission to start their engines?

Some larger airliners must get ground control permission before starting their engines. Is this based on size? Does a Learjet need permission? Is this just turbines? For example does a DC3 or DC6 ...
4
votes
2answers
448 views

Does a stopper (chock) really prevent the plane from moving?

In Crime-Thriller movie American Made (2017), Barry put this stopper in front and in the back of the plane's front wheel. Do wheel chocks really prevent an airplane from moving?
14
votes
3answers
2k views

Are there any models for planning aircraft placement in hangars?

I work alone at night doing line operations (fueling, tugging/towing, etc.) and emergency services (police, fire and EMS) at my airport. When a pilot/customer comes in and wants to know if we have ...
28
votes
2answers
5k views

How do tugs push back the Antonov 225?

How do tugs push back aircraft with 2 nose gears such as the Antonov 225?
5
votes
3answers
529 views

What are the names of the vehicles to provide assistance to aircraft during the turnaround?

During the turnaround many vehicles support the aircraft on the gate. What are the name of those "vehicles"and their purpose?
4
votes
1answer
147 views

What do Turnaround Supervisors do before departure?

Before the plane is able to take off, what calculations do Turnaround Supervisors have to do and what do they have to check before the plane departs?
39
votes
2answers
4k views

What are the advantages of towbarless pushback tugs?

After watching the video below I wondered the reason for towbarless tugs. Lifting the front wheel of a 575 ton aircraft seems like it requires an awful lot of expensive and complex hydraulics when the ...
19
votes
3answers
2k views

Why are airplanes sometimes led by a vehicle?

Airplanes are sometimes led by a vehicle on taxiways until they reach the runway or stand, why is this?
5
votes
1answer
580 views

What is the minimum number of engines required for taxiing an airliner?

What is the minimum number of engines required for taxiing for jet airlines from a fuel savings perspective, for 4 engine configurations and 2 engine configurations? Is using fewer engines counter ...
1
vote
1answer
2k views

On the A320, why is it not recommended to use the HP ground unit when the APU Bleed is on?

Can someone explain what the HP ground unit is used for? And what damage happens to the bleed system if it is used?
13
votes
4answers
695 views

Drop the rope or drag the rope?

I was the safety officer at a glider operation earlier this year and we had a new tow pilot who forgot to drop the rope. By radio, I instructed him to drop the rope before landing. The downsides of ...
4
votes
0answers
216 views

How far can one be from an helipad when marshalling an helicopter?

I considered 25 meters (as per UN SOP's) but after working years with MI-8's the downwash can flatten a big man. I'm interested in procedures from the FAA etc. ...
3
votes
5answers
354 views

Why are autonomous vehicles not used at airports for on-ground services?

Autonomous vehicles have been around for over an decade, other industries such as the maritime industry have already been using unmanned vehicles at ports. Curious to know why airports are reluctant ...
19
votes
3answers
5k views

How can two planes be on the same taxiway facing opposite to each other?

Curious to know how two planes can be on the same taxiway facing opposite to each other at the same time? Please have a look at the satellite view of the following coordinates in Google Maps: (-27....
1
vote
1answer
357 views

What is the minimum separation for aircraft operating on or intersecting the same runway?

How capturing of this photo was ever possible: (photo courtesy of jetphotos.com) Shouldn't there be a bigger time / distance separation of three aircrafts using, operating or intersecting the same ...
2
votes
1answer
383 views

Is the cargo door on this airplane really malfunctioning?

Recently, I saw that video: EDIT: I removed the Facebook video link which would require sign up for anyone without an account. I've re-uploaded the video here: https://vid.me/8WYI In general, this ...
5
votes
1answer
737 views

Are parked airliners always connected to a ground power unit?

I'm wondering if commercial passenger planes, like the A320, are always connected to the ground power unit (GPU) when they are at the gate? Even if for a quick turnaround.
18
votes
2answers
3k views

What is this aircraft with large pipes at the flight deck windows?

This image comes from a site about aircraft tractors: What is the type? Why the large pipes at the flight deck windows? What is this place? Why is this plane here?
9
votes
3answers
1k views

Why do buses at some airports differs from conventional ones?

Why do buses at airports differ from conventional ones? Why do they have such wheels or cover wheels at all? Source.
1
vote
1answer
243 views

What is the cart and cable connected to this plane? [duplicate]

During boarding I noticed many times that planes are "connected" with some orange cable. It's curious to know what is it. Does anybody knows?
12
votes
1answer
2k views

Why are only captains allowed to taxi the aircraft?

At most airlines, only the captains are allowed to taxi the aircraft (i.e. Lufthansa). Even if the copilot is pilot flying, the captain will taxi the aircraft to the runway, and later from the runway ...
6
votes
1answer
751 views

How many types of tape do airplane mechanics use?

I was reading this blog linked from this answer, and it mentions “We never use, and don’t even stock, duct tape,” explains a veteran airline mechanic. “Some of the tapes we use cost hundreds, ...