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Chat Area => General Discussion Area => Topic started by: Migalot on 22 June 2015, 22:37:28

Title: Amazing Dreamliner video
Post by: Migalot on 22 June 2015, 22:37:28
For any aircraft anoraks out there!!

Amazing video! Choose your viewpoint. (Best on laptop/PC. Limited for mobile phone users) :y

https://www.youtube.com/user/Boeing/ChooseYourView (https://www.youtube.com/user/Boeing/ChooseYourView)

Title: Re: Amazing Dreamliner video
Post by: Phil L on 22 June 2015, 22:38:38
Incredible
Title: Re: Amazing Dreamliner video
Post by: Varche on 23 June 2015, 13:13:54
Liked that, thanks :y
Title: Re: Amazing Dreamliner video
Post by: henryd on 23 June 2015, 14:22:05
That thing has some grunt to climb out like that :o
Title: Re: Amazing Dreamliner video
Post by: Delroy47 on 24 June 2015, 07:12:23
Nice  :)
Title: Re: Amazing Dreamliner video
Post by: Marks DTM Calib on 24 June 2015, 13:44:08
Interesting, I guess the airframe is the clever bit as clearly it has hardly any fuel, no passengers and no cargo so weight is mega low.
Title: Re: Amazing Dreamliner video
Post by: Kevin Wood on 24 June 2015, 13:47:50
Interesting, I guess the airframe is the clever bit as clearly it has hardly any fuel, no passengers and no cargo so weight is mega low.

Not to mention no strategy to handle an engine failure. :-X
Title: Re: Amazing Dreamliner video
Post by: Migalot on 24 June 2015, 18:54:42
Interesting, I guess the airframe is the clever bit as clearly it has hardly any fuel, no passengers and no cargo so weight is mega low.

Not to mention no strategy to handle an engine failure. :-X

Not sure I understand. I believe all certified pilots and aircraft are tested for engine-out procedures.  ???
Title: Re: Amazing Dreamliner video
Post by: Phil L on 24 June 2015, 18:57:44
They are, both in day time & night time I understand
Title: Re: Amazing Dreamliner video
Post by: 05omegav6 on 24 June 2015, 22:21:20
Rotate to near vertical climb out is very impressive... The 757 with a pair of late RB211s will perform the same trick with equal ease.

Only problem is that at that point, if one engine shuts down there is only time for one outcome... ::)

At least during normal take off the aircraft is relatively stable, thereby giving options to the crew...

That said the display crew would probably push the nose over and level the aircraft whislt attempting a restart :-\
Title: Re: Amazing Dreamliner video
Post by: Broomies Mate on 24 June 2015, 22:30:31
Engine restarts are normally only undertaken at ~cruising speed and whilst expediting a slow and steady descent.  Even with a engine failure at take-off, the aircraft will reach 10,000ft before an engine restart will be attempted.

This is to allow the necessary procedures to carry-out the engine restart, which may include a shallow dive to get the turbines spinning (a jump start if you will) whilst not breaking the lower 'safe' flying limit for a passenger jet.

That said, if an engine fails on a 2 engined passenger aircraft, an emergency is declared and the aircraft will be diverted to the nearest suitable airport.  Suitable meaning enough runway and emergency crews on hand to deal with the worst case scenario.
Title: Re: Amazing Dreamliner video
Post by: Migalot on 24 June 2015, 22:51:22
Rotate to near vertical climb out is very impressive... The 757 with a pair of late RB211s will perform the same trick with equal ease.

Only problem is that at that point, if one engine shuts down there is only time for one outcome... ::)

At least during normal take off the aircraft is relatively stable, thereby giving options to the crew...

That said the display crew would probably push the nose over and level the aircraft whislt attempting a restart :-\

This Thomson 757 experienced a bird-strike on climb out and the crew managed...bloody well, actually!


https://www.youtube.com/watch?v=9KhZwsYtNDE (https://www.youtube.com/watch?v=9KhZwsYtNDE)
Title: Re: Amazing Dreamliner video
Post by: Broomies Mate on 24 June 2015, 23:01:13
This Thomson 757 experienced a bird-strike on climb out and the crew managed...bloody well, actually!
https://www.youtube.com/watch?v=9KhZwsYtNDE (https://www.youtube.com/watch?v=9KhZwsYtNDE)

All passenger aircraft HAVE to be able to take off, cruise and land with 50% operational engines.  A 747 (example) can fly with engines 1&2 out of action.  3&4 will allow that jet to cruise just fine.

That Thomson take-off was a standard rate of climb, and I'm quite sure the crew were able to establish a malfunction in engine 2 and apply more power to engine 1 to maintain that standard rate of climb.

The Dreamliner climbed vertical for a few moments, (more than likely) to the point of stall....... had there have been an engine failure, that 787 would have fallen from the sky like a very large brick.


As a side note, it was interesting how they only used half the runway for the take-off, unless of course that is the length of the runway they were 'practicing' for?
Title: Re: Amazing Dreamliner video
Post by: Varche on 24 June 2015, 23:12:46
Rotate to near vertical climb out is very impressive... The 757 with a pair of late RB211s will perform the same trick with equal ease.

Only problem is that at that point, if one engine shuts down there is only time for one outcome... ::)

At least during normal take off the aircraft is relatively stable, thereby giving options to the crew...

That said the display crew would probably push the nose over and level the aircraft whislt attempting a restart :-\

This Thomson 757 experienced a bird-strike on climb out and the crew managed...bloody well, actually!


https://www.youtube.com/watch?v=9KhZwsYtNDE (https://www.youtube.com/watch?v=9KhZwsYtNDE)

Hmm we experienced a flock of birds strike at Reus (Barcelona) on take off with Ryanair. We had just left the ground and the pilot acted swiftly enough to land us (just). Everything not tied down shot to the front of the plane. people were evil to the crew even when they showed us the bird remains! We were just grateful that the pilot was skilled
Title: Re: Amazing Dreamliner video
Post by: Phil L on 25 June 2015, 00:00:01
Rotate to near vertical climb out is very impressive... The 757 with a pair of late RB211s will perform the same trick with equal ease.

Only problem is that at that point, if one engine shuts down there is only time for one outcome... ::)

At least during normal take off the aircraft is relatively stable, thereby giving options to the crew...

That said the display crew would probably push the nose over and level the aircraft whislt attempting a restart :-\

This Thomson 757 experienced a bird-strike on climb out and the crew managed...bloody well, actually!


https://www.youtube.com/watch?v=9KhZwsYtNDE (https://www.youtube.com/watch?v=9KhZwsYtNDE)
You're telling me... amazing
Title: Re: Amazing Dreamliner video
Post by: Kevin Wood on 25 June 2015, 00:02:59
The Dreamliner climbed vertical for a few moments, (more than likely) to the point of stall....... had there have been an engine failure, that 787 would have fallen from the sky like a very large brick.
Funnily enough, I was discussing it with a 757 pilot yesterday evening and that is exactly what his assessment was. Lose an engine that slow and you won't have enough rudder authority to correct the yaw from the asymmetry, so it'll do a spectacular wing-over into the ground.

He did promise to try it when he next gets the opportunity.. :o










In a simulator. ;D