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Old September 5th, 2019, 07:15 PM   #1
fountainkopf
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Will there be a supersonic airliner after Concorde ?

Some are studying those.

https://www.dlr.de/dlr/Portaldata/1/...orn_Daniel.pdf
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Old September 8th, 2019, 08:24 AM   #2
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BOOM supersonic airliner is pretty far: https://www.youtube.com/watch?v=c-HbJn3LAHc

More: https://boomsupersonic.com/overture

Others too: https://www.cnbc.com/2019/01/18/boei...ic-travel.html
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Old September 9th, 2019, 01:24 PM   #3
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A few startups with idea's for small scale supersonic jets aimed at the business community but they're many years away & will need 100's of millions if not billions before they can deliver a working jet so unlikely to ever get off the drawing board the high development costs probably mean they will run out out of funding before any jets ever materialize.

More realistic is the Lapcat A2 a spin off from Reaction Engines (UK) Skylon project not super-sonic but hyper-sonic it could go from Europe to Australia in around 4 hours using Scimitar a derivative of the SABRE engine technology intended for jet airliners designed around existing gas turbines.

General characteristics

Capacity: 300 passengers (plus baggage)
Length: 139 m (456 ft 0 in)
Wingspan: 41 m (134 ft 6 in)
Wing area: 900 m2 (9,700 sq ft)
Max takeoff weight: 400,000 kg (881,849 lb)
Fuel capacity: 198 t (437,000 lb) liquid hydrogen
Powerplant: 4 × Reaction Engines Scimitar Precooled jet engine
Cruise speed: Mach 5.2 (6,370.2 km/h) supersonic, or Mach 0.9 (1,102.54 km/h; 685.09 mph; 595.32 kn) subsonic
Range: 18,700 km (11,600 mi, 10,100 nmi) plus a 5,000 km (3,100 mi; 2,700 nmi) reserve

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Old September 9th, 2019, 10:20 PM   #4
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It all depends on economics. For now, it seems unlikely.
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Old September 9th, 2019, 11:24 PM   #5
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it's sad that humanity as a race is going backwards in technology...

We had tons of nuclear reactors, supersonic airplanes, we landed on the Moon and now after next few decades of "growth" we've lost almost all of it and goals that our grandparents achieved are out of range with all our modern tech and higher GDP...

we are degenerating and even started to decresed in life expectancy in US and many EU states...

pathetic how worthless we have became without any vision...
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Old September 10th, 2019, 12:18 AM   #6
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Quote:
Originally Posted by k% View Post
it's sad that humanity as a race is going backwards in technology...

We had tons of nuclear reactors, supersonic airplanes, we landed on the Moon and now after next few decades of "growth" we've lost almost all of it and goals that our grandparents achieved are out of range with all our modern tech and higher GDP...

we are degenerating and even started to decresed in life expectancy in US and many EU states...

pathetic how worthless we have became without any vision...
For most of those examples, it was determined that the technology was impractical/unsafe/economically unfeasible, not that we no longer know how to build them. We simply learned why we shouldn't.

The exception being nuclear reactors, I think. On that front, a lot seems to have been done deliberately to hold the technology back. Then again, it's a very real issue that we don't have any long-term plans for dealing with the radioactive waste. On the other hand again, it doesn't seem like much is done to find a solution either, the relevant governing bodies simply seem too afraid to talk about it that much.

But yeah, the thing with the Concorde was that its design had to make some compromises that made it impossible to operate at a reasonable price, its capacity was low and it could only fly supersonic over the sea. Overall, it simply sacrificed too much for that awesome speed. That disaster was really just the final nail in the coffin for what was, essentially, a plane that wasn't a very good passenger carrier. It had the speed going for it, and most everything else going against it. But it was miles better than its Soviet counterpart, at least.
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Old September 11th, 2019, 09:25 AM   #7
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Wood was banned as an airliner building material in 1931...after Knute Rockne died....since that Rocky Marciano has died and Lynyrd Skynyrd the rock band in metal aeroplane accidents...but no one is banning metal made aeroplanes.

That was just a side note.
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Old September 11th, 2019, 07:52 PM   #8
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Quote:
Originally Posted by k% View Post
it's sad that humanity as a race is going backwards in technology...

We had tons of nuclear reactors, supersonic airplanes, we landed on the Moon and now after next few decades of "growth" we've lost almost all of it and goals that our grandparents achieved are out of range with all our modern tech and higher GDP...

we are degenerating and even started to decresed in life expectancy in US and many EU states...

pathetic how worthless we have became without any vision...
These technologies from the 1940-1970 period were a result of Cold War state-led overinvestment waves that resulted in huge bubbles of economically unsustainable technological development that burst in the 70s and 80s and reversed many advances.

The height of the stupid demented mentality was the Apollo porgram, which set humanity back decades. If not for the Space Race (started by the URSS) we'd probably have lunar and Mars bases by now. But not, they throw a shitload of cash on a non-reusable dead end architecture of Apollo and the Shuttle (no, the Shuttle wasnt reusable it was re-porkable).

The error is not that the bubble burst, the error of course was the bubble. Developing supersonic aviation, nuclear reactors and spaceships with taxpayer money instead of market forces made these technologies arise too early, before there was a market and/or the tech was mature enough.

That was the result of the statist dementia that took the world in the 20th century due to Marxism and other statist ideologies.

We don't need the government to fund the aviation industry or the microchip industry or the shipbuilding industry - those thungs are funded voluntarily by people who want it, and develop healthily and organically (aviation not so much, because it suffered statist overinvestment in the Cold War period and still is subsidized today).
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Old September 11th, 2019, 11:11 PM   #9
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No, private companies would not do everything for you.

If there was no market for private companies to go to the moon, why would private company spend 100 billion (cost of Apollo program) to bring an American to the moon?

Which private company would even have that amount of money back than?

only vision of our grandparents took us there.

And I don't care about "maybe" - that maybe we would have base on mars or moon, only things that happend really have happend.
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Old September 12th, 2019, 06:21 AM   #10
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Quote:
Originally Posted by k% View Post
it's sad that humanity as a race is going backwards in technology...

We had tons of nuclear reactors, supersonic airplanes, we landed on the Moon and now after next few decades of "growth" we've lost almost all of it and goals that our grandparents achieved are out of range with all our modern tech and higher GDP...

we are degenerating and even started to decresed in life expectancy in US and many EU states...

pathetic how worthless we have became without any vision...
It's not that we are moving backwards technically. Far from it. As said before, it's that we don't have the economic signals to implement at commercial scale.

We have the means to provide faster travel. The current commercial system, which is slower, just provides it at lower costs.

Last edited by womfalcs3; September 12th, 2019 at 08:57 AM.
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Old September 12th, 2019, 08:40 AM   #11
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From a practical point of view, we are pretty much stagnating. Traveling in the 1970s was pretty much the same as today (50 years later). For someone from 1970, the change was much more dramatic. In 1920, there were only steam ships and trains. And 50 years later they could jet around the world at todays speed.
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