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Boeing Dreamliner produces near-vertical takeoff ahead of Paris air show
indianexpress.com ^
| June 13 2015
| Vishnu Varma
Posted on 06/13/2015 4:43:31 AM PDT by Berlin_Freeper
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To: Berlin_Freeper
2
posted on
06/13/2015 4:48:58 AM PDT
by
Fred Hayek
(The Democratic Party is now the operational arm of the CPUSA)
To: Fred Hayek
The aerodynamic design, particularly the wings remind of many birds that are highly maneuverable in flight. I’m thinking they took a page out of nature’s handbook on this one because that bird is highly maneuverable for its size.
To: Berlin_Freeper
Given the requirement for a single engine takeoff, almost any airliner can perform that maneuver when nearly empty.
Boeing did the same thing with a 787-9 last year at the Farnborough Air Show: https://www.youtube.com/watch?v=va5HGMlRSdQ
4
posted on
06/13/2015 5:19:39 AM PDT
by
Yo-Yo
(Is the /sarc tag really necessary?)
To: Berlin_Freeper
Don't try that with a full load.
5
posted on
06/13/2015 5:21:52 AM PDT
by
BitWielder1
(I'd rather have Unequal Wealth than Equal Poverty.)
To: Yo-Yo
Since when was 30 degrees “almost vertical”. More like 50% of vertical, no?
6
posted on
06/13/2015 5:25:36 AM PDT
by
Riflema
To: Riflema
Since when was 30 degrees almost vertical. More like 50% of vertical, no?
...
I don’t know but this is at least the third thread with people thinking it’s nearly vertical.
7
posted on
06/13/2015 5:27:34 AM PDT
by
Moonman62
(The US has become a government with a country, rather than a country with a government.)
To: Moonman62
Yes, the Boeing "pre-Paris" video is shot from a very interesting angle to insinuate "near vertical". The Farnborough one helpfully is captioned "near 30 degrees".
For a serious piece of engineering, this type of hype is not needed.
8
posted on
06/13/2015 5:30:12 AM PDT
by
Riflema
To: Riflema
I think the 787 has really beautiful wings. They flex quite a bit too.
9
posted on
06/13/2015 5:33:39 AM PDT
by
Moonman62
(The US has become a government with a country, rather than a country with a government.)
To: Moonman62
Oops, should have read the full piece. They fess up:
As far as the near vertical take-off is concerned, this is what a 767 pilot told CNN: Some of what youre seeing on takeoff is a trick of perspective. It looks like the takeoff is at a near vertical 90 degree angle trust me its not.
10
posted on
06/13/2015 5:33:55 AM PDT
by
Riflema
To: Berlin_Freeper
Project manager for 787 said that there is 26 tons of
carbon fiber on the aircraft- replacing many more tons of older material/metals etc. subject to stress wear and excessive weight for the size of the vehicle.
This plane is both lighter and larger. Imagine.
Take a look at the wings flexing in the video to see what carbon fiber laminates capability.
And the lighter weight gives near vertical takeoff and rapid recovery to level flight.
11
posted on
06/13/2015 5:45:25 AM PDT
by
John S Mosby
(Sic Semper Tyrannis)
To: Riflema
12
posted on
06/13/2015 6:29:06 AM PDT
by
Darth Reardon
(Is it any wonder I'm not the president?)
To: Berlin_Freeper
There are very few planes that can accelerate going vertical.
13
posted on
06/13/2015 6:33:14 AM PDT
by
central_va
(I won't be reconstructed and I do not give a damn.)
To: Riflema
Anything over 30 degrees angle of atack would probably result in a stall..
I don't think you could do this with any Airbus pane..their fly-by-wire would override it..
14
posted on
06/13/2015 6:34:29 AM PDT
by
ken5050
(If Hillary is elected president, what role will Huma Abedin have in the White House? Scary, eh?)
To: Darth Reardon
Well, depends on what you’re measuring. At 30 degrees you will ascend 50 ft for every 100 ft of air you travel through. Vertical, 90 degrees, you gain 100 ft for every 100 ft of travel. Thus 50%.
15
posted on
06/13/2015 6:34:51 AM PDT
by
Riflema
To: Berlin_Freeper
That’s still pretty impressive...
16
posted on
06/13/2015 6:43:26 AM PDT
by
oust the louse
(The LEFT has no principles, it only has goals !)
To: oust the louse
I wonder if the stall warning alarm was blasting in their ears.....
17
posted on
06/13/2015 6:45:08 AM PDT
by
central_va
(I won't be reconstructed and I do not give a damn.)
To: Moonman62
To: Berlin_Freeper
Needs Tex Johnson doing a roll.
19
posted on
06/13/2015 7:15:26 AM PDT
by
Demiurge2
(Define your terms!)
To: Riflema
I think 45 degrees is half of vertical - 100 feet up for every 100 feet horizontally travelled. 90 degrees would be 100 feet up and zero feet travelled horizontally. 30 degrees would be a third of vertical or 33 percent of vertical, as the other poster noted. Btw that would still make my stomach sink.
20
posted on
06/13/2015 7:20:12 AM PDT
by
lacrew
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