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Old 02-09-2016, 11:06 AM
 
33,387 posts, read 34,863,645 times
Reputation: 20030

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Quote:
Originally Posted by Leisesturm View Post
It was done before. Or was the Concorde a fake, like the Apollo spacecraft... Bumblebees...
the concord was real enough, and it lasted thirty years in flight, but the reality is that it never made money, and was heavily subsidized by the governments of the countries that flew them. in addition, the concord was an expensive aircraft to purchase as well. so please stop talking out of your backside.

Quote:
Originally Posted by J.Thomas View Post
We have to be bold guys!!!

We can't let these MBA maniacs to halt progress in aviation
if the concord made money, i would be one of the first to suggest building more of them. and you can bet that airlines around the world would be using them regularly. but as noted, they never made any money, and they were expensive to purchase. so why would anyone want to operate them?
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Old 02-09-2016, 12:32 PM
 
Location: Asgard
1,185 posts, read 805,202 times
Reputation: 670
For any craft to go at least supersonic or faster would need a redesign of a lot of things that would be expensive.


No matter how aerodynamic the structure would be, the craft will still be subjected to heavy drag and resistance that would make it burn fuel to compensate for said resistance. Tickets would cost much more.


Take the space shuttle example and the rate of burn (granted it has to penetrate the atmosphere but still same type of reasoning.


The concord was very aerodynamic but still burned through tons of kerosene.


Less resistance would be encountered at higher altitudes but the craft will have to get there. Unless they master anti gravity propulsion.


Maybe hybrid type fuels (better ones)
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Old 02-09-2016, 12:37 PM
 
4,231 posts, read 3,561,102 times
Reputation: 2207
At some point we'll need an anti gravity solution.

Can you imagine efficiency!!

But i don't know is there even a theoretical work based on that??
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Old 02-09-2016, 12:38 PM
 
2,014 posts, read 1,651,048 times
Reputation: 2826
sonic boom, its what killed the original concorde,any type of plane no matter how advanced or sophisticated cannot avoid creating the sonic boom.
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Old 02-09-2016, 12:42 PM
 
Location: Denver, CO
1,421 posts, read 1,637,885 times
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Quote:
Originally Posted by J.Thomas View Post
At some point we'll need an anti gravity solution.

Can you imagine efficiency!!

But i don't know is there even a theoretical work based on that??
And now you're in to science fiction

The only "antigravity" in existence today would be two magnets. Since it only works in a very controlled environment with a magnetic floor, it is impractical outside of lab-settings.
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Old 02-09-2016, 12:47 PM
 
4,231 posts, read 3,561,102 times
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Quote:
Originally Posted by caverunner17 View Post
And now you're in to science fiction

The only "antigravity" in existence today would be two magnets. Since it only works in a very controlled environment with a magnetic floor, it is impractical outside of lab-settings.
Of course i know.

But i'm hopeful about this.

We'll need to cover great distances in space.

Sure we're not gonna have these technologies next year but who knows??

Give it a decade or two.

NASA was confused about an engine

https://en.wikipedia.org/wiki/RF_res...avity_thruster

Big things to achieve
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Old 02-09-2016, 02:19 PM
 
Location: Portland, OR
9,855 posts, read 11,938,716 times
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Quote:
Originally Posted by rbohm View Post
the concord was real enough, and it lasted thirty years in flight, but the reality is that it never made money, and was heavily subsidized by the governments of the countries that flew them. in addition, the concord was an expensive aircraft to purchase as well. so please stop talking out of your backside.
What the h*** do you care whether the Concorde made any money or not? They flew the things for 30 years with four engines sucking down however many thousands of pounds of fuel per minute without your help. I can think of a half dozen things that don't make any money but exist. And you are glad they do. City-Data conservatives all think everything hangs on profit. Like I said earlier, prop jobs are far easier on fuel than jets, so why did jets ever become the status quo? If the shareholders of the 1950's were as powerful as shareholders of the 2000's, we indeed would never have made the transition to jet aircraft.
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Old 02-09-2016, 02:22 PM
 
Location: Portland, OR
9,855 posts, read 11,938,716 times
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Quote:
Originally Posted by hifijohn View Post
sonic boom, its what killed the original concorde,any type of plane no matter how advanced or sophisticated cannot avoid creating the sonic boom.
A crash is what killed the Concorde. The sonic boom thing was a non-issue. It never flew supersonic over land.
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Old 02-09-2016, 02:24 PM
 
Location: Portland, OR
9,855 posts, read 11,938,716 times
Reputation: 10028
Quote:
Originally Posted by J.Thomas View Post
At some point we'll need an anti gravity solution.

Can you imagine efficiency!!

But i don't know is there even a theoretical work based on that??
Helium lifting gas? Doesn't get much more efficient. Just saying...


Edit: The Brit's do it again.

Last edited by Leisesturm; 02-09-2016 at 02:34 PM..
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Old 02-09-2016, 02:41 PM
 
4,231 posts, read 3,561,102 times
Reputation: 2207
Quote:
Originally Posted by Leisesturm View Post
Helium lifting gas? Doesn't get much more efficient. Just saying...


Edit: The Brit's do it again.
Yup.

Lockheed has one.

http://lockheedmartin.com/us/product...idAirship.html
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