Questions tagged [cargo]

Question regarding transport of goods using aircraft.

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79
votes
8answers
19k views

Why do aircraft models end their life as freighters?

There seems to be a tendency that aircraft models are more long-lived for cargo than for passenger service. For example, both the A300 and MD-11 are all but extinct in scheduled passenger service, ...
42
votes
8answers
12k views

What if all passengers pay to check in extra baggage?

Suppose a given flight is fully booked and everybody shows up. Not only have they all brought the allowed fully loaded carry-on & checked-in luggage weight but exceed the free-limits. They are all ...
37
votes
10answers
15k views

Why are there no cargo aircraft with "flying wing" design?

From that I have seen so far, the "flying wing" design (like the one of B-2 Spirit and Northrop YB-49) has superior performance but also a few notable problems that make it difficult to use for ...
36
votes
9answers
34k views

Why does An-225 have anhedral wings though it is a cargo aircraft?

What are the rationale behind this anhedral high mounted wing configuration? Is that usual for very large carge aircraft?
33
votes
8answers
12k views

Do any aircraft carry boats?

A small boat could be part of general cargo, but that would typically just mean it's unloaded at an airport and transported to the nearest body of water by land infrastructure. This is not what I'm ...
33
votes
8answers
14k views

Why do some companies perform their freight flights only during the night?

I heard that for example FedEx among others performs the majority of their flights during the night, the same goes for TNT. Is the reason for that is that during the day all of the freight is being ...
25
votes
4answers
11k views

Why are magnetized materials dangerous goods?

I was reading about Dangerous Goods, and came across the fact that magnetized materials are classified as Dangerous Goods (item 12 in the linked page). We all see magnets every day, and they seem ...
24
votes
5answers
11k views

Why do cargo airlines frequently choose passenger aircraft rather than aircraft designed specifically for cargo?

Cargo airlines are known to regularly use planes designed primarily for passenger travel. Why don't they almost exclusively use aircraft designed specifically for cargo?
23
votes
1answer
3k views

How are large cargo aircraft loaded at airports?

Passenger aircraft are accessed at gates, or using buses. While they are parked waiting for passengers to board, the area they use is billed by the airport. I was wondering what is the procedure for ...
21
votes
1answer
1k views

Is training and pay different for cargo and airline pilots?

Do cargo pilots receive different training than airline pilots? Are there notable differences in salary or other benefits? My assumption is that since cargo pilots do not have to deal with passengers,...
19
votes
1answer
4k views

What is the upper deck on converted freighter long-hump 747s used for?

All 747s1 have an upper deck directly behind the elevated cockpit, a legacy of the 747’s genesis as a design for a strategic-airlifter competition (the upper deck and elevated cockpit were partly to ...
18
votes
7answers
11k views

Why have cargo hybrid airships not succeeded in the market?

Using a Lighter Than Air (LTA) Hybrid Airship to efficiently transport cargo to remote areas seems like an idea that should flourish. It allows access to remote places in the world that have no ...
18
votes
4answers
1k views

Does cargo heat failure require a diversion? What about if there are live animals in cargo?

There was a story in the news recently that an Air Canada 787-8, enroute from Tel Aviv (TLV) to Toronto (YYZ), diverted to Frankfurt (FRA) when the pilots discovered a problem with the cargo heat. ...
17
votes
3answers
5k views

Why don't American passenger airlines operate dedicated cargo flights any more?

I was reading recently that Northwest Airlines was the last American passenger carrier to operate dedicated Cargo aircraft. Why do none of the large US airlines operate dedicated cargo flights anymore?...
17
votes
4answers
4k views

Do Cargo flights carry anyone other than the crew?

This question talks a bit about the crews that are involved in a commercial cargo flight, but I'm wondering if Cargo flights every carry other sorts of people on their flights? Say, a photographer to ...
16
votes
1answer
707 views

What is the usage ratio of the An-225 Mriya?

Does anyone have data on how much time the An-225 (only one was produced; it is currently the largest aircraft in the world) spends flying/on missions and how much it waits for customers? This is a ...
13
votes
4answers
3k views

How does dropping ordnance affect the weight and balance of the aircraft?

During a mission, military aircraft often shed a lot of weight from takeoff to landing. An F-15C (empty weight: 28,000 lbs) carries an internal fuel load of 13,455 lbs (almost a third of take-off ...
13
votes
2answers
17k views

What is the typical aircrew for a cargo flight?

What is the typical aircrew for a civilian (not military) cargo flight? From my limited web searches, it seems that there would be three crew members: Pilot Co-pilot (I assume there must always be ...
12
votes
3answers
4k views

Can commercial aircraft dump luggage or cargo mid-air?

In a situation where the pilot realizes that weight of the aircraft is too high, can they dump luggage / cargo mid air, similar to dumping fuel?
12
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2answers
2k views

What is the loading diagram for a C-130J?

I'm a student participating in a design project wherein we have to develop a paper design for a payload to be airdropped from a C-130J. Naturally, I'd like to look at the weight and balance of the C-...
12
votes
1answer
1k views

Is the life of pets considered when dealing with a cargo fire indication?

In this event, the crew of a 777 responded to a spurious cargo fire indication by activating the fire suppression system, which suffocates the cargo area. Presumably any pets held there would have ...
12
votes
1answer
15k views

What percentage of airliner flights globally are freight flights?

So we have N airliner flights in the world each day. What percentage of them are "purely" cargo flights versus passenger flights (that may carry cargo as well)? We can exclude Combi aircraft and other ...
11
votes
3answers
3k views

Are there items bigger than an aircraft section transported by air today?

This question about engine transportation made me wonder what is the size of the biggest item ever transported. Then I remembered that it should have been a space shuttle (either Buran or the American ...
11
votes
2answers
29k views

How many active large commercial airplanes are there?

For example, the 747 Wikipedia page says that 1500 747s were produced (that number seems quite low!). Any indication of how many large, commercial aircraft there are, and what the breakdown between ...
11
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1answer
1k views

Why do cargo airplanes fly fewer cycles then airliners?

Reading Why do cargo airlines frequently choose passenger aircraft rather than aircraft designed specifically for cargo?, some answers say that cargo aircraft fly less than passengers aircraft. Why?
10
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2answers
2k views

Is it possible to convert a passenger A380 to carry cargo?

I heard an expert say that one of the A380's weaknesses is that it only comes in a passenger version, not a cargo one like the B747 does. The cargo version of the B747 makes its market wider. One more ...
10
votes
3answers
2k views

Is the A330F main deck cargo compartment pressurized? If not, what is the purpose of the structural cargo access door?

I know there is a related question already asking if cargo holds in general are pressurized. My question is specifically about the A330-243F in the below photograph. That looks like a pressure ...
9
votes
4answers
2k views

Why do cargo aircraft still have floors?

Even with dedicated cargo aircraft built as cargo aircraft (rather than converted from a passenger-carrying configuration), the cabin is virtually always still divided into an upper and a lower lobe (...
9
votes
3answers
20k views

Cargo aircraft temperature [duplicate]

What is the temperature in the storage compartment on board of a cargo aircraft? I'm ordering a temperature-sensitive package by airmail and wouldn't want it to freeze. There are many questions ...
9
votes
2answers
2k views

Why do cargo flight companies reposition their crew via passenger airlines?

U.S. airlines prepare plans to virtually shut down domestic service amid outbreak : Coronavirus This will cause massive issues for cargo as well. Cargo operators use commercial airlines to ...
9
votes
3answers
829 views

Does cargo balance affect fuel efficiency in commercial aviation?

Positioning cargo such that the center of gravity of the plane is within a certain range is essential, but is there any advantage to having the center of gravity closer to some ideal point within the ...
9
votes
1answer
3k views

How is heavy cargo secured in military cargo carriers?

Some big military cargo carriers carry tanks and other heavy equipment and I am not sure if they have some kind of special locks or tie-downs in the cargo space to manage those heavy loads. How are ...
9
votes
2answers
549 views

Do "air ferries" for civilian vehicles still exist?

In the 1950's and 1960's, there were vehicle (and passenger) air ferries operated by planes such as the Bristol Freighter. Mostly across the English Channel (England to France), by companies like ...
9
votes
1answer
1k views

With positive passenger/bag matching rules, what happens to a bag that does not arrive with the passenger?

According to one answer to Why offload bags for missing passengers when flights are allowed to carry unaccompanied non-PAX air-cargo in holds?, the requirement for Positive Passenger/Bag Matching was ...
8
votes
4answers
3k views

Is it safe to fly on airplane with lithium batteries in cargo hold?

Lithium-ion batteries have the tendency to go on fire. I checked baggage policy of European low cost carriers (easyJet, Ryanair, WizzAir), and while spare batteries are banned from cargo hold, it ...
8
votes
1answer
815 views

Are cargo and passenger flights flown differently?

Are aircraft flown differently because boxes don't complain about more abrupt changes in direction, speed, altitude, etc where passengers might. i.e. if the cargo is incapable of loading itself, is it ...
8
votes
1answer
2k views

What happens when all passengers jump at once?

As a thought experiment, imagine a plane with minimal fuel/appliances on board with hundreds of heavy passengers that make up say 10% of the weight of the plane. Now imagine that they have a way to ...
8
votes
2answers
950 views

What safety differences exist between carrying laptops in checked versus carry-on baggage?

Recent rumors say that the laptop ban might be extended to flights originating in Europe heading for the USA. This made me think, if laptops are not safe for carriage in the cabin how can they be safe ...
8
votes
2answers
483 views

For the 737 Combi, How did changing the proportions of the passenger vs cargo areas work?

I am very interested in the 737 combi models and want to learn more about how they worked in practice. For the 737 Combi, How did changing the proportions of the passenger vs cargo areas work? I have ...
7
votes
3answers
2k views

Can fuel sloshing in the tanks cause a stall?

Cargo planes secure their load meticulously and if it breaks loose, the result is sometimes catastrophic. However, how do you prevent fuel sloshing inside the tanks and causing the same problems as ...
7
votes
2answers
768 views

Why is the Beluga chartered out for oddball missions, but not the Dreamlifter?

Both Airbus and Boeing have special outsize-cargo freighters for transporting large pieces of airliner; Airbus has five Belugas (derived from the A300), while Boeing uses four Dreamlifters (...
7
votes
3answers
4k views

Do airlines have freezers?

In the latest twist to the case of the dead rabbit, an anonymous "airport worker" has told a reporter that it was killed by leaving it in a freezer locker, contradicting the accounts of United ...
7
votes
1answer
2k views

Are there little seat belts or other restraints for the organ-containing coolers kept in cockpits?

The NPR podcast A Surgeon Reflects On Death, Life And The 'Incredible Gift' Of Organ Transplant features Dr. Joshua Mezrich a surgeon who flies to other hospitals to retrieve organs for transplant ...
7
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3answers
2k views

Are carbonated drinks considered dangerous goods for air freight?

I understand carbonated drinks in allowed in cabin, but, is it allowed in air cargo transportation, when you ship in bulk?
7
votes
1answer
3k views

How was the 'bump' removed from the Airbus P2F?

(Sources: airliners.net, YouTube) How was the 'bump' removed from [the design of] the Airbus P2F? The A330 Freighter based on the A330-200 features a bump / blister / bulge that raises the nose ...
7
votes
1answer
2k views

Do ETOPS requirements vary between passenger, cargo, and non-revenue flights?

Are there different ETOPS requirements for aircraft depending on usage? For example, does a FedEx cargo flight need the same ETOPS ratings for over ocean flights as a passenger flight? Also, how ...
6
votes
2answers
6k views

Why was the C-5 considered the largest plane possible?

We started to build the C-5 and wanted to build the biggest thing we could https://en.wikipedia.org/wiki/Lockheed_C-5_Galaxy The An-225 is 50% larger and has a shorter life. Did they mean the C-5 was ...
6
votes
2answers
1k views

For designing a runway, what are the largest cargo airplanes in use?

I am working on a project where I have to design a runway for large cargo planes and I need to know what kind of planes I should assume would land there.
6
votes
1answer
557 views

What alternative designs competed for the C-130 in the 1950s?

Which manufacturers and aircraft entered the U.S. government design competition back in the 1950s in which the Lockheed C-130 was selected? Were they all clean sheet designs, modified versions of ...
6
votes
2answers
585 views

Why do we see many more 5th and 8th freedom cargo flights than passenger flights?

Usually, we can see many cargo flights operating between 2 foreign countries (and even as domestic flights within a foreign country in some cases). There are passenger flights that operate in the same ...