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Cargo aircraft

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Cargo aircraft are fixed-wing airplanes designed specifically to carry goods rather than passengers. These aircraft are essential to the modern global economy. They move everything from perishable food to fully built cars and livestock. By 2015, dedicated freighters made up 43% of the 700 billion available tonne-kilometer (ATK) capacity. The rest of that capacity was carried in the cargo holds of passenger airliners.

An-124 ready
An-124 ready

To move heavy items, cargo planes use specialized engineering. Many feature a wide or tall fuselage, which is the main body of the aircraft. A high-wing design is often used so the cargo floor sits closer to the ground. This makes loading much easier. Many cargo planes also have numerous wheels to allow them to land at unprepared locations. Some designs include a high-mounted tail so cargo can be driven directly into the plane.

Boeing 747-8F Nose cargo door
Boeing 747-8F Nose cargo door

There are different ways to create a cargo fleet. Many freighters are derivatives of passenger aircraft. Specialized engineering teams convert these airliners by installing large main deck cargo doors. They upgrade the floor beams to support heavy loads. They also replace passenger seats with new linings, lighting, and smoke detectors. This process can extend an aircraft's life by 15 to 20 years. For example, converting a Boeing 747-400 might cost $25 million.

Frola 91927 1259322186 (5777864292)
Frola 91927 1259322186 (5777864292)

Other aircraft are dedicated freighters. These are built from the very beginning to carry cargo without passenger restrictions. NASA conducted a study called the Cargo/Logistics Airlift Systems Study (CLASS) to evaluate these planes. The study found that dedicated cargo aircraft could provide a 20% reduction in trip costs. They could also be 15% cheaper to purchase than other types. However, these benefits depend heavily on fuel costs and the demand for cargo services.

The history of air cargo began with air mail as early as 1911. By the 1920s, manufacturers began building dedicated planes. The Vickers Vernon entered service in 1921 as the first dedicated troop transport. In 1923, it performed the first strategic airlift of troops by flying 500 Sikh soldiers.

Vickers Vernon
Vickers Vernon

Later, the German Arado Ar 232 became the first purpose-built cargo aircraft.

Arado Ar 232B-0 RAE
Arado Ar 232B-0 RAE

During World War II, many nations used the C-47 Skytrain, a cargo version of the Douglas DC-3.

Innovation in loading has changed how these planes work. In 1939, the Junkers Ju 90 introduced a rear loading ramp. This was a powerful hydraulic lift called a Trapoklappe. This ramp raised the rear of the aircraft to allow easy loading. During the Cold War, the Berlin Airlift showed the need for better designs. Older planes like the C-47 were hard to unload. Newer designs used tricycle landing gear to make moving the aircraft easier. This led to the requirement for flat decks in all new cargo designs.

Large-scale transport has evolved into several distinct classes. The Lockheed C-130 Hercules is a famous military transport that is still in production today. In the 1960s, "strategic" cargo aircraft emerged, such as the Lockheed C-5 Galaxy. These can carry massive loads like main battle tanks across the globe. The Antonov An-225 Mriya was the largest aircraft in the world.

Antonov An-225 Beltyukov-1
Antonov An-225 Beltyukov-1

Even the massive Airbus A380 has been used for cargo. In 2020, Hi Fly used an A380 to carry medical supplies from China.

Lockheed C-130 Hercules
Lockheed C-130 Hercules

Today, the cargo industry is a massive part of world trade. Air cargo transports over US$6 trillion worth of goods. This accounts for approximately 35% of world trade by value. This industry is also a major employer. In the United States, cargo airlines employed 268,730 workers in August 2023. This helps keep products available on store shelves and supports the growth of online shopping.

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🖼️ Images & Media (9)
File:An-124 ready.jpg
An-124 ready.jpg
File:Vickers Vernon.jpg
Vickers Vernon.jpg
File:Arado Ar 232B-0 RAE.jpg
Arado Ar 232B-0 RAE.jpg
File:Lockheed C-130 Hercules.jpg
Lockheed C-130 Hercules.jpg
File:Antonov An-225 Beltyukov-1.jpg
Antonov An-225 Beltyukov-1.jpg
File:Frola 91927 1259322186 (5777864292).jpg
Frola 91927 1259322186 (5777864292).jpg
File:PACP-750XSTOL2.jpg
PACP-750XSTOL2.jpg
File:Boeing 747-8F Nose cargo door.jpg
Boeing 747-8F Nose cargo door.jpg
File:Avro York.jpg
Avro York.jpg
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