Check out the factory where Boeing is building the last of its legendary 747s

The Boeing 747 jumbo is one of the most famous planes in aviation history. The plane — referred to by many as the “Queen of the Skies” — helped revolutionise air travel for the masses with it arrived on the scene in 1969. It’s been going strong for over 40 years.

Even though Boeing has sold more than 1,500 747s, the airline industry shifted towards smaller and more fuel efficient twin-engined jets in recent years, such as the Boeing 777. As a result, the company has had a difficult time finding buyers for the iconic jumbo jet.

However, the resilient Boeing 747 is still alive and very much in production. Recently, Chris Sloan of Airways News had the opportunity to take a guided tour during Boeing’s media days of the Everett, Washington factory where the aeroplane maker assembles the jumbo.

Here’s what he saw.

In the late 1960s, a group 50,000 Boeing employees came together to create the first 747 jumbo jet in an astonishing 16 months.

Although the 747 is less popular these days, it's still featured in the fleets of such airlines as British Airways and ...

These days, Boeing is selling the latest version of the jumbo jet -- the 747-8. It's the largest and most efficient 747 ever built.

Sloan's tour of Boeing's Everett, Washington plant was helmed by Boeing vice president, and general manager of the 747-8 program, Bruce Dickinson .

The Everett plant is the largest manufacturing building in the world. The factory consists of 472 million cubic feet of space and sits on 98.3 acres of land.

It's home to 30,000 Boeing employees.

Boeing assembles both the passenger Intercontinental and freighter variants of the 747 at the plant.

In addition, the Everett plant is also the assembly site for the 767, 777, and the 787 Dreamliner.

This is also where the US President's next-generation Air Force One will be assembled.

At the time of Sloan's tour, Boeing had three 747s under construction at the plant, all of which were freighters.

According to Sloan, it takes Boeing roughly 112 days to complete assembly of a new 747 -- about two-thirds of the time it used to take.

A total of 6 million components from 550 suppliers in 30 countries come together to form the 747.

Like these landing gear assemblies or ...

... this part from one of the plane's control surfaces.

At the plant, Boeing pieces the 747's nose ...

... fuselage, wings, and ...

....tail together.

Ultimately, its all takes on that iconic shape. This 747-8 freighter is coming together nicely.

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