It has a pronounced 37.5° wing sweep, allowing a Mach 0.85 (490 kn; 900 km/h) cruise speed, and its heavy weight is supported by four main landing gear legs, each with a four-wheel bogie.
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Aided by a more powerful jet stream than usual, this rapid journey saw the 747 reach a top speed of 825 mph. Photo: Markus Mainka I Shutterstock. Popular Mechanics reports that the reason for it being so powerful on this occasion was a 'bomb cyclone' near Greenland.
1. Boeing 747-400 – Mach 0.92 (705.89656 mph) A Boeing 747-400 taxiing on a runway. The fastest commercial airliner in the world in regards to maximum speed is the wide-bodied, four-engine Boeing 747-400.
The North American X-15 may be the fastest plane in the world, with speeds at 4,520 mph and Mach 5.93. It's an experimental aircraft used and powered by NASA and USAF.
Did you know that a cargo-carrying Boeing 747 once inadvertently flew supersonically? Reports from 1991 suggest that the aircraft reached a speed of Mach 1.25 while rapidly descending due to a malfunction. While this was never confirmed, this could be the fastest that a commercial Queen of the Skies has ever flown.
A Mach number is the ratio of an object's speed in a given medium to the speed of sound in that medium. Mach 1, then, is the speed of sound, around 761 mph at sea level on a standard day. The term is also used as a metaphor for high speeds more generally.
Mach 10 speed has never been achieved by a manned aircraft, though, so it has never been tested. Mach 10 has, however, been achieved by a spacecraft - on November 16, 2004, NASA launched the X-43A, an air-breathing hypersonic vehicle, and was able to reach real Mach 10 while being pushed into the atmosphere.
Private aircraft can travel faster than commercial airliners. Part of this has to do with the weight of the jet itself. Private jets weigh less than large commercial aircraft, allowing them to ascend and descend faster than commercial jet.
Technical, financial, and regulatory hurdles make a return to the skies extremely unlikely. Concorde is an aircraft that captures the imagination and is instantly recognizable even to non-aviation fanatics.
Such speed didn't come cheap, though: A transatlantic flight required the high-maintenance aircraft to gulp jet fuel at the rate of one ton per seat, and the average round-trip price was $12,000.
The reason planes cruise at high altitudes is that they burn less fuel and can fly faster, as the air is less dense. At 30,000 feet and higher, it is also possible for aircraft to avoid weather systems, making it more comfortable onboard.