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Old December 14th, 2005, 06:47 PM   #21
Rodrigo_BSB
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The fastest airliner flying nowadays is probably Cessna 750 Citation X, with a top speed of Mach 0.92 (1.104 km/h), and a cruise speed of Mach 0.90 (1.080 km/h). Cessna claims it to be the fastest civil transport in service other than the supersonic Concorde.
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Old December 14th, 2005, 09:04 PM   #22
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^The Citation X is not an airliner. It is one damn good looking aircraft.



The fastest airliner in service today, as previously stated, is the 747-400, with a cruise speed of M.86 and a maximum speed of M.92.
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Old December 14th, 2005, 10:40 PM   #23
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^ i thought the fastest airliner was the 747-100, because in flight tests it sometimes goes to a speed of mach 1.
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Old December 14th, 2005, 10:43 PM   #24
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but isn't the A380 the fastest? the said it's cruise speed is now up to mach 0.89. so, maybe faster than a 747.
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Old December 15th, 2005, 01:34 AM   #25
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The cruise speed of the 747-100/200/300is mach 0.85.
The cruise speed of the 747-400 is around mach 0.855.

The cruise speed of the A380 is around mach 0.85... and the top speed is mach 0.89.
Although in recent tests the A380 was tested at up to mach 0.96.
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Old December 15th, 2005, 11:10 AM   #26
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Quote:
Originally Posted by Rodrigo_BSB
The fastest airliner flying nowadays is probably Cessna 750 Citation X, with a top speed of Mach 0.92 (1.104 km/h), and a cruise speed of Mach 0.90 (1.080 km/h). Cessna claims it to be the fastest civil transport in service other than the supersonic Concorde.
A business jet is NOT an airliner.....
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Old December 15th, 2005, 03:25 PM   #27
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it was thinking it was the 707
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Old December 15th, 2005, 03:32 PM   #28
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the boeing 707 was also fast going top speed of 1010 kms per hour, is flying more than 1000 kms per hour alraedy breaking the sound barrier???
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Old December 15th, 2005, 05:38 PM   #29
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I always thought the fastest non-supersonic production airliner was the Lockheed L-1011 TriStar 1/50/100/150/200/250 with the Cruising Speed speed in the L-1011/200 of 982 km/hr. Its the aircraft that made Rolls-Royce go bankrupt in February 1970 trying to devolop its engine. Almost sending Lockheed itself into bankruptcy after selling only 250 planes (breakeven was 500) from 1968-1983 with some bribery scandals in between.

http://www.airliners.net/info/stats.main?id=271
http://trijets.net/tristar/page/specs.html

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Old December 16th, 2005, 01:52 AM   #30
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Quote:
Originally Posted by Nephasto
The cruise speed of the 747-100/200/300is mach 0.85.
The cruise speed of the 747-400 is around mach 0.855.

The cruise speed of the A380 is around mach 0.85... and the top speed is mach 0.89.
Although in recent tests the A380 was tested at up to mach 0.96.
Flipping heck - supersonic in a whale-jet!
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Old December 16th, 2005, 03:05 AM   #31
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Quote:
Originally Posted by Wezza
A business jet is NOT an airliner.....
I know that. I only thought you are speaking about all kind of civilian aircrafts. Sorry.
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Old December 19th, 2005, 11:19 AM   #32
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I forgive you......
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Old December 19th, 2005, 05:11 PM   #33
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Quote:
Originally Posted by nicksanderson
Flipping heck - supersonic in a whale-jet!
btw if commercial aircrafts can reach top speed of more than a thousand kms per hour at an altitude of 30000 feet and more, is it not dangerous if they go beyond and possibly fly faster than the speed of sound (more than 1062 kms per hr) , would it be dangerous and may damage the structural integrity of the plane if they go beyond the speed of sound
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Old December 20th, 2005, 11:58 AM   #34
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The sound barrier speed varies at different altitudes.
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Old December 20th, 2005, 03:05 PM   #35
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The speed of sound varies according to air temperature and humidity, though not pressure as you might imagine...
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Old December 20th, 2005, 04:21 PM   #36
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audio interview :A discussion with Tom Standage, Technology Editor of The Economist

“The demise of Concorde won’t be the end of the supersonic dream. There are two different camps that are now looking at new supersonic aircraft that have new designs on the drawing board.”

http://www.economist.com/printeditio...3&no_na_tran=1
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Old August 3rd, 2010, 11:19 AM   #37
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concorde it's great plane
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Old August 5th, 2010, 04:17 AM   #38
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1st , tu-144
2nd, concorde , thats all.
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Old August 5th, 2010, 12:20 PM   #39
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The Convair 880 & 990 were the fastest subsonic airliners I believe.
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Old January 22nd, 2011, 02:01 AM   #40
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It's the 707

Not sure if this counts, but if you include flight testing, the 707 was taken to well over a true 700 mph speed -which makes it pretty high up on the list of fastest airliners.
I would imagine though, that many of the other planes here, may have tested to something like these speeds -just to test their flight safety envelopes.

On the other point the TU 144 unlike the Concorde, is still flying since being refurbished by NASA as a flight test bed, ie the 'TU 144LL'.
It's main weakness now cured, which isn't any structural issues (you just don't fly it out of it's envelope). It was it's feeble range, inefficient engines meant it couldn't fly Atlantic crossing, unlike the more subtly designed and better engined Concorde. The Nasa upgrade has sorted this out, with modern Russian engines and many other details.

I also, though its hard to say being from the UK, find the TU 144LL to look far more space-age and meaner than Concorde, which has a certain femininity and grace to it. It is also a pity it is the last of it kind.
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