Fake??

Boeing's 787 Dreamliner Does A Near-Vertical Takeoff

 

I think it's genuine. Paris air show is on this week and I have seen reference to their flight demo in some French websites too.
I also think the angle of camera is deceiving a bit. That's a very steep climb but not vertical. Still the bird does fly very well.

 

That take off is not a photoshop special. The airplane is very light and has a lot of horse pressure. Plus they have some very good pilots on the program and they know the limits of the airplane. Boeing would never publish something phony about their airplanes.

 

I would say its real... Something about power to weight ratio....

https://www.youtube.com/watch?v=g8VH-kJ_HQk


Not sure if that is the "standard" Vx climb, but I for one would like to experience that..

 

It's real, but might as well be fake.

Have they lifted the FL290 icing restriction yet?

 

It's Boeing's prep for the Paris airshow.

http://www.youtube.com/results?search_query=boeing+prep+paris+airshow

 

With enough power , You can do anything...

https://www.youtube.com/watch?v=M359poNjvVA&feature=em-share_video_user

 

In the beginning of the video the Typhoon scared the s#!t out of me!

 

While impressive, I'm guessing it's no where near vertical. Those angles always look weird to me. Here's a shot of a JAL 747 departing LAX. While it looks extreme, it's probably no more than 20 degrees in this shot.
Image Unavailable, Please Login

 

On the 747-8, with essentially the same engines, the restrictions have been lifted to 35,500 with some limitations. Basically if you are at a light weight, you have to fly faster to keep the N1 and N2 up. There's a chart with Altitude and weight vs speed. I'll see if I can post it.

 

That's a wonderful pic

 

low fuel, no passengers, no baggage/freight I would imagine it is quite the performer in that condition

 

That is what I said in an earlier post. Light weight and lots of power and a good pilot.

 

Wouldn't most empty transport category perform like this or does the 787 have a higher thrust to weight ratio?

 

a performance take off is impressive to see, but essentially not a big deal...

it's about having enough momentum for a few seconds to have an aggressive angle attack and gain some altitude, which creates the wow factor... there are military aircraft ( without payload ) that have do not need to depend on illusion to do an aggressive climb out...

 

You can see in the video where they keep the NG down longer than would normally be required to gain extra speed at min drag, then followed by an aggressive pitch up. Just your typical obstacle take-off technique.

 

Oh, come on!

Now this dude, on the other hand, had a right to be scared. And to have his replacement knickers paid for by the network...

https://m.youtube.com/watch?v=4iOoiEbtf2w

 

As Bob Hoover aptly demonstrated in numerous airshow routines, you can do a lot of things so long as you don't lose ALL the airspeed. They gain some speed by keeping the nose down at full power and then go near vertical and as it bleeds off push it back down.

It's not that it's a big deal, but the impressive thing here is that the 78 has the power that a light weights can keep it vertical for as long as they can.

Since this is essentially a low speed maneuver, bigger bypass engines really help a lot. Older turbojets and smaller bypass fans can do it, but with the new generation of big bypass engines you get a lot more thrust at lower speeds, and that is what makes this more impressive.

Think about it another way. The empty thrust to weight ratio of a 787 is about .5 lbs of thrust per pound of aircraft.... The empty thrust to weight ratio of an F-86 is about .53... Only 6% better..

 

Check out this KC-10 airshow takeoff... Lightweight with a full thrust takeoff its quite over-powered!

https://www.youtube.com/watch?v=vOSHMB_Tpe8

 

It actually takes a tonne of power to get vertical right after takeoff WITHOUT accelerating at low altitude to build up energy in the form of speed to later trade off for whatever thrills are in store. To climb at whatever speed the gear comes up at plus whatever is added while pitching up to vertical while maintaining that speed, or gaining more speed, necessitates a thrust to weight ratio of 1:1 or better.

I couldn't find the outside view video of this maneuver that the birds used to do...but for pilots, it really is one of their coolest tricks. Taking off, sucking up the gear and proceeding directly into a loop is every bit as cool as ripping down the runway and crossing the departure end at 500 knots then climbing to the moon.

https://m.youtube.com/watch?v=N2gP0VryXZQ

 

If anyone in the aviation arena has seen with their own eyes the performance of B-52 bomber combat maneuvers as a comparison for "heavies" performance envelope, knows this demonstration is completely legit.

 

Holy Mother of God!! The Jumbo looks E P I C.

 

What's the camera platform on these shots, and what are its altitude/position relative to the runway and the subject aircraft?