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Questions tagged [ground-operations]

Servicing an aircraft on the ground before or after flight

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8 views

What is a metering frequency and why would an airport have it?

I just read a post from a pilot complaining about how he thought a metering frequency was useless. It has something to do with being on the ground at an airport. What is it, what purpose does it ...
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1answer
16 views

How is the load & trimsheet form sent to ACARS?

After the last passengers and baggage are loaded onto the aircraft, the pilot in command is given a form called load & trimsheet which shows the passenger/baggage distributions, total weights and ...
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1answer
29 views

Is there a Risk of Tail Tipping during Push-back of a passenger aircraft?

I remember that there were countless incidents occurred in which the aircraft sits on the tail as the aircraft was heavily loaded at the back of the cargo and/or cabin compartments or the cargo ...
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3answers
2k views

How could the B-29 bomber back up under its own power?

I was watching some footage of the Enola gay I was interested in the part where the plane was backing up over the bomb (starts around 18:27). It appears to be doing ...
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1answer
136 views

Are there surveillance cameras in aircraft cargo bays?

I've heard that there are cameras on the fuselage and wings of some passenger aircraft. Is there a similar surveillance system in-built at the cargo bay/compartment of a passenger aircraft? During ...
21
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2answers
5k views

Why does the headset man not get on the tractor?

As far as I can see, the pushback operation of a passenger aircraft is carried out by a similar application at many airports. It's a towbarless tractor and driver who pushes the aircraft together with ...
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0answers
87 views

How should ground crews act to safely extinguish an airliner's brake unit fire?

When the brake unit was overheated and had just begun to catch fire due to excessive braking because of long taxi distance upon arrival, the ground personnel (not firefighters) made the first ...
6
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2answers
419 views

Does the person directing the plane to parking not risk getting ingested by a jet engine?

According to answers in this post, a jet engine can suck a human into its engines, even on idle power. Aircraft use their engines post landing taxi and into their parking space, and I notice people ...
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0answers
101 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 ...
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1answer
164 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 ?
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1answer
112 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?
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0answers
113 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 ...
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0answers
59 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 ...
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1answer
274 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
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1answer
131 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
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1answer
162 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 ...
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1answer
146 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 ...
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1answer
199 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 ...
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0answers
334 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 ...
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2answers
174 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 ...
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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?
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0answers
68 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
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1answer
385 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?
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1answer
421 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?
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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.
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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 ...
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0answers
255 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 ...
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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 ...
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0answers
68 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
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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 ...
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3answers
220 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
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2answers
293 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 ...
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3answers
759 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?
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2answers
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 ...
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1answer
362 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?
4
votes
1answer
591 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
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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 ...
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2answers
509 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?
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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 ...
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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?
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3answers
631 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?
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1answer
155 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?
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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 ...
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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?
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1answer
615 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 ...
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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?
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4answers
752 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
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0answers
218 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
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5answers
390 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 ...
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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....