Was there ever a 3 engine 747?

However, there was once a time when the American manufacturer was also working on a shortened variant with three engines. Although the project was scrapped quite early on in its development, it makes for an interesting story. Let's check out the story behind the failed Boeing 747 trijet below.



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On 24 June 1982, the route was flown by the City of Edinburgh, a Boeing 747-200 registered as G-BDXH. The aircraft flew into a cloud of volcanic ash thrown up by the eruption of Mount Galunggung around 110 miles (180 km) south-east of Jakarta, Indonesia, resulting in the failure of all four engines.

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In addition to domestic flights of medium range, the 727 was popular with international passenger airlines. The range of flights it could cover (and the additional safety added by the third engine) meant that the 727 proved efficient for short- to medium-range international flights in areas around the world.

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Dassault Falcon 900EX. The 900 and its derivatives, the Falcon 7x and 8x, are the only trijets in the world currently in production. One consideration with trijets is positioning the central engine. This is usually accomplished by placing the engine along the centerline, but still poses difficulties.

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From the mid-1990s, twin-engine aircraft such as the Boeing 777 and Airbus A330 offered the same payload, the same range and lower operating cost than the triples, and that was the end of the road for the triple-engine giants as passenger aircraft.

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What you might not know is that the 747 has the ability to carry a fifth engine, fitted between the body of the aircraft and the inner-most engine on the port (left) side of the aircraft.

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All fixed-wing aircraft have some capability to glide with no engine power; that is, they do not fall straight down like a stone, but rather continue to glide moving horizontally while descending.

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It can dump fuel to reduce its weight. And it is a surprisingly good glider, which ensures that the chances of landing successfully with one engine running are pretty good, as it slows down the rate of descent significantly. However, one engine is not enough to maintain a safe flying altitude for a Boeing 747 .

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The planes are due for delivery in 2024 as part of a $3.9 billion contract. Boeing's 777X, its latest passenger plane model and projected replacement for the 747, is set for delivery in 2025.

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The Boeing 747 is not the only aircraft that can fly with five engines, however. In fact, several older planes, such as the DC-8 and 707, used to have fifth pods installed to transport spare engines.

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Yes, you can safely land with full fuel.

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Because of aerodynamics, the cockpit level had to rise and slope back down to the main fuselage, giving us the iconic hump.

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The most well-known case here is the US Airways 1549 Miracle on the Hudson landing. The Airbus A320 aircraft struck a large flock of Canada geese on take-off from New York La Guardia airport - at an altitude of just under 3,000 feet. This caused both engines to shut down, and they could not be restarted.

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Consequently, the B-36 was configured to have 10 engines, six radial propeller engines and four jet engines, leading to the B-36 slogan of six turnin' and four burnin' . The B-36 had more engines than any other mass-produced aircraft. The jet pods greatly improved takeoff performance and dash speed over the target.

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A glider is a special kind of aircraft that has no engine. There are many different types of gliders. Paper airplanes are the simplest gliders to build and fly.

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Can a plane fly if all its engines have failed? A passenger aircraft will glide perfectly well even if all its engines have failed, it won't simply fall out the sky. Infact it can fly for around 60 miles if it loses its engines at a typical cruise altitude of 36,000ft.

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