Sharing some screenshots of the Boeing BWB (Blended Wing Body) 797 flying over Manhattan New york.

 

All pictures are taken from my FSX - scenery Aerosoft Manhattan X

 

Does anyone know if there will be a boeing BWB in the future? or its only fiction?

 

 

 

 

 

 

 

 

 

The aircraft is a freeware designed by William Ortis, Lionheart Creations Ltd - downloaded from http://simviation.com/1/search?submit=1&keywords=blended&categoryId=

i hope it will remain just as a fiction

Looks awful! :mad:

Right now, it's just a concept study with NASA. There's a scale model that has been doing flight tests for the last couple of years.

Right now, it's just a concept study with NASA. There's a scale model that has been doing flight tests for the last couple of years.

 

thanks for the reply...

The only 2 aircraft that have been made and flown in a wing design are the B2 Spirit and briefly the Horten Ho 229. Both aircraft were developed in secrecy and both aircraft have unique problems under failure conditions. There have been many test designs other than those 2 aircraft, its just that those 2 were actually known to have flown successfully, many others have tragically failed.

 

The biggest problem with a single flying wing design is when a failure happens, especially a hydraulic one, you lose surface control, this is already a very deadly problem in a conventional aircraft, in a flying wing, its a guaranteed disaster. Also the electronic computers that would assist the pilots, if they fail, the chances of the aircraft safely getting back to the ground are pretty slim. Personally I don't like the flying wing design for commercial use, for stealth military aircraft its ingenuous but not without its inherent risks.

 

 

Addendum: Another rumor has the 797 to be the next 757 evolution. That rumor has some historical correlation to it which makes it plausible.

 

737 - Upgraded 10 times to its current version "MAX", future upgrades very likely for 2018-2020.

 

747 - Upgraded 7 times, the latest upgrade is the 800i series, future upgrades possible depending upon the success of the 777 and 787.

 

757- Upgraded 3 times, currently there are no national medium sized jet aircraft from Boeing other than the 757, many airlines still use this aircraft.

 

767 - Upgraded 4 times, there are no current plans to upgrade the 767 and it will likely get replaced by the new 787 (if they can fix the problems and get past the media).

 

777 - Upgraded 4 times, it remains to be seen if the 747 will continue on its upgrades or if the 777 will completely replace it, future upgrades possible.

Didn't Thunderbirds have an episode with this?

http://www.thevervoid.com/media/thunderbirds/thunderbirds01.htm

Interesting shots. The scenery looks very nice, but the plane... I don't know, looks somewhat ugly to me. Hopefully they'll never build that one.

The only 2 aircraft that have been made and flown in a wing design are the B2 Spirit and briefly the Horten Ho 229. Both aircraft were developed in secrecy and both aircraft have unique problems under failure conditions. There have been many test designs other than those 2 aircraft, its just that those 2 were actually known to have flown successfully, many others have tragically failed.

 

The biggest problem with a single flying wing design is when a failure happens, especially a hydraulic one, you lose surface control, this is already a very deadly problem in a conventional aircraft, in a flying wing, its a guaranteed disaster. Also the electronic computers that would assist the pilots, if they fail, the chances of the aircraft safely getting back to the ground are pretty slim. Personally I don't like the flying wing design for commercial use, for stealth military aircraft its ingenuous but not without its inherent risks.

 

 

Addendum: Another rumor has the 797 to be the next 757 evolution.

 

Interesting information. Thanks.

Hmmm...all the passengers are sitting on the leading edges of the wing. Is there huge fuel tanks right behind them, or is there a passenger lounge in that big area?

What would be the advantage of this blended wing design over present wide-body aircraft? Just curious.

The only 2 aircraft that have been made and flown in a wing design are the B2 Spirit and briefly the Horten Ho 229. Both aircraft were developed in secrecy and both aircraft have unique problems under failure conditions. There have been many test designs other than those 2 aircraft, its just that those 2 were actually known to have flown successfully, many others have tragically failed.

 

The biggest problem with a single flying wing design is when a failure happens, especially a hydraulic one, you lose surface control, this is already a very deadly problem in a conventional aircraft, in a flying wing, its a guaranteed disaster. Also the electronic computers that would assist the pilots, if they fail, the chances of the aircraft safely getting back to the ground are pretty slim. Personally I don't like the flying wing design for commercial use, for stealth military aircraft its ingenuous but not without its inherent risks.

 

You missed out on the YB-49. I'm also pretty sure you can make a flying wing inherently stable, so loss of hydraulics or flight computers would be no more catastrophic than on a conventional plane (which is not to say that you aren't in deep doo-doo if it happens).

 

Hmmm...all the passengers are sitting on the leading edges of the wing. Is there huge fuel tanks right behind them, or is there a passenger lounge in that big area?

What would be the advantage of this blended wing design over present wide-body aircraft? Just curious.

 

Lack of a vertical tail saves weight and drag, having your 'fuselage' produce lift saves drag, and as a side-benefit the engines are shielded by the fuselage, reducing the noise for people on the ground.

 

Now for the downsides:

- Current regs require a plane to be capable of being evacuated in 90 seconds. This is much harder in a BWB where people will be sitting further from an exit.

- People are sitting further away from the longitudinal axis of the plane, so they're going to be in for a rollercoaster ride whenever you roll the plane.

- Control and stability is harder than for a conventional lay-out, although we've come a long way with that.

- I'm doing a PhD in the structural integrity department at my uni and a couple of my professors have expressed doubts as to what kind of joint could reliably connect the two wings like that. Of course they don't have inside information (as far as I know), so maybe Boeing has thought of something really smart and not told anyone yet.

 

You missed out on the YB-49. I'm also pretty sure you can make a flying wing inherently stable, so loss of hydraulics or flight computers would be no more catastrophic than on a conventional plane (which is not to say that you aren't in deep doo-doo if it happens).

 

That was one of the tragic failures, however you are correct in the fact it did fly, losing surface control is deadly in any aircraft, in a flying wing design its catastrophic due to design implementations, the biggest problem yet again is in the electronics flight controls, if those go in a conventional aircraft, its a big problem but many have landed safely and with little to no injury, in a flying wing like the YB-49 its catastrophic.

That first image is just ..... weird. I was just thinking what a great ride it would be on a complicated SID or STAR. Wheeeeee !!!!!

Lack of a vertical tail saves weight and drag, having your 'fuselage' produce lift saves drag, and as a side-benefit the engines are shielded by the fuselage, reducing the noise for people on the ground.

 

Is there a limit on the thickness of the wing? I see, on the blended wing of this aircraft, the wing is super thick. I know the old Boeing 314 used to have a wing thick enough that someone could access the engines during flight, to do maintenance.

Is there some point to where the wing would be so thick that it would create drag, or can that be compensated by its lift?

Is there a limit on the thickness of the wing? I see, on the blended wing of this aircraft, the wing is super thick. I know the old Boeing 314 used to have a wing thick enough that someone could access the engines during flight, to do maintenance.

Is there some point to where the wing would be so thick that it would create drag, or can that be compensated by its lift?

 

You'd have to ask an aerodynamicist about that one. There's obviously going to be some limit when the wing get as thick as it is wide (if only because people are going to insist on calling it a lifting body rather than a wing), but I don't know if you hit a limit before that. You're also going to hit practical limitations as the chord length (leading edge to trailing edge) has to get ever larger to maintain your airfoil shape with increasing wing thickness, though I suspect you're going to reach structural limitations before you reach the aerodynamic ones.