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Author Topic: Joined-wing and box-wing aircraft  (Read 39876 times)

Offline hesham

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Joined-wing and box-wing aircraft
« on: December 18, 2007, 10:43:49 am »
Hi,

a project for ring wing double deck airliner.
http://www.flightglobal.com/PDFArchive/View/2003/2003%20-%200326.html

Offline Orionblamblam

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Re: Joined-wing and box-wing aircraft
« Reply #1 on: December 22, 2007, 10:30:18 am »
Hi,

a project for ring wing double deck airliner.

Not a "ring wing," but a "box wing."
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Offline hesham

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Re: Joined-wing and box-wing aircraft
« Reply #2 on: July 31, 2008, 04:56:55 am »
Hi,

box-wing aircraft.

Offline Antonio

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Re: Joined-wing and box-wing aircraft
« Reply #3 on: July 31, 2008, 06:31:46 am »
hesham,

where did you found that "box wing" airline. Could you please give us more details?

Thanks,

Antonio

Offline boxkite

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Re: Joined-wing and box-wing aircraft
« Reply #4 on: July 31, 2008, 12:01:05 pm »
Quote
hesham,

where did you found that "box wing" airline. Could you please give us more details?

See here, Antonio:

http://www.secretprojects.co.uk/forum/index.php/topic,2966.0/highlight,bauhaus.html

Offline hesham

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Re: Joined-wing and box-wing aircraft
« Reply #5 on: August 01, 2008, 02:52:32 am »
Hi,

box-wing aircraft.

My dear Pometablava ,

I think the reference by my dear Boxkite contain the name of the site,that becuase
I don't remember its name now.

Offline hesham

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« Last Edit: August 01, 2008, 04:08:23 am by hesham »

Offline amsci99

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Re: Joined-wing and box-wing aircraft
« Reply #7 on: August 03, 2008, 10:25:50 am »
Here's what I believed to be a CG concept drawing for a joined-wing glider. Picked this up from a foreign language forum which was using this to explain the joined-wing concept. There was no reference to this glider design perhaps members in know can assist.

Offline hesham

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Re: Joined-wing and box-wing aircraft
« Reply #8 on: December 05, 2008, 09:09:41 am »

Offline hesham

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Re: Joined-wing and box-wing aircraft
« Reply #9 on: February 04, 2009, 10:28:27 am »

Offline hesham

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Offline Retrofit

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Re: Joined-wing and box-wing aircraft
« Reply #11 on: March 31, 2009, 11:33:34 am »
Hi,
Something more retro: The MAI-Kuzakov modified Po-2.

A scale model was wind-tested in 1951 by the Moscow Aviation Institute.

Photo and drawing from "Letatyelnyye Apparaty MAI" by Makarov, 1994

« Last Edit: March 31, 2009, 11:47:19 am by Retrofit »

Offline Retrofit

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Re: Joined-wing and box-wing aircraft
« Reply #12 on: March 31, 2009, 09:51:24 pm »
This one was also designed and tested by the MAI, but I don't know the specifications and history.
Is there a 3V drawing available?
Photo from "Letatyelnyye Apparaty MAI" by Makarov, 1994

« Last Edit: March 31, 2009, 10:00:35 pm by Retrofit »

Offline hesham

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Re: Joined-wing and box-wing aircraft
« Reply #13 on: April 01, 2009, 11:38:49 am »
Thank you Retrofit;

it is very interesting projects,and anther joined wing aircraft
and high altitude surveillance aircarft.
http://aerade.cranfield.ac.uk/subject-listing/design.html

Offline hesham

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Offline hesham

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Re: Joined-wing and box-wing aircraft
« Reply #15 on: June 13, 2009, 11:27:35 am »
Also California Univ. joined-wing very large transport aircraft,it look
like Lockheed C-5 fuselage.

http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19940020238_1994020238.pdf

Offline Mr London 24/7

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Re: Joined-wing and box-wing aircraft
« Reply #16 on: July 08, 2009, 03:05:26 am »
Air Force Institute of Technology Report into "INERTIA MEASUREMENT AND DYNAMIC STABILITY ANALYSIS OF A RADIO-CONTROLLED JOINED-WING AIRCRAFT".

http: //www.dtic.mil/cgi-bin/GetTRDoc?AD=ADA451280&Location=U2&doc=GetTRDoc.pdf

"In 2004 and 2005 AFRL Air Vehicles Directorate designed, built, and flew a scaled radio-controlled joined-wing aircraft, called VA-1"
« Last Edit: July 09, 2009, 02:02:09 am by mr_london_247 »

Offline hesham

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Re: Joined-wing and box-wing aircraft
« Reply #17 on: July 08, 2009, 11:30:06 am »
Hi,

From Lockheed Georgia,the Joined-wing long-endurance RPV.
http://www.flightglobal.com/pdfarchive/view/1987/1987%20-%200018.html

Offline Mr London 24/7

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« Last Edit: February 08, 2010, 08:40:22 am by mr_london_247 »

Offline hesham

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Re: Joined-wing and box-wing aircraft
« Reply #19 on: December 20, 2010, 03:57:29 am »
Hi,

The Lockheed boxwing concept,please note;there is
no tail fin.


Offline Grey Havoc

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Re: Joined-wing and box-wing aircraft
« Reply #20 on: June 20, 2011, 03:52:02 pm »
The Rutan Model 58 and Model 59 both come under this category.
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Offline igor-mich

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Re: Joined-wing and box-wing aircraft
« Reply #21 on: June 21, 2011, 05:30:15 am »
This one was also designed and tested by the MAI, but I don't know the specifications and history.
Is there a 3V drawing available?
Photo from "Letatyelnyye Apparaty MAI" by Makarov, 1994

1976 V. Kuznetsov drafted sport aerobatic aircraft "Photon-01" diamond-shaped wing. The aircraft is now intended to establish a piston engine M-337 260 hp with a tractor propeller.

Offline Grey Havoc

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Re: Joined-wing and box-wing aircraft
« Reply #22 on: June 21, 2011, 11:20:08 am »
Let's not forget the Boeing EX!
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Offline Skyblazer

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Re: Joined-wing and box-wing aircraft
« Reply #23 on: June 21, 2011, 02:03:36 pm »
John Wolkowitch's ACA Industries JW-1 and derivative projects:


Offline igor-mich

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Re: Joined-wing and box-wing aircraft
« Reply #24 on: June 21, 2011, 03:26:48 pm »
In 1977, Mr. Kuznetsov was designed to Moscow Aviation Institute super-heavy transport aircraft with diamond-shaped wing.
 

Offline Grey Havoc

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Re: Joined-wing and box-wing aircraft
« Reply #25 on: September 21, 2011, 02:54:46 am »
Here's a bit more info on Lockheed's box wing research and concepts: Lockheed future biplane freighter aircraft
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Offline hesham

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« Last Edit: September 23, 2011, 02:45:11 pm by hesham »

Offline Skyblazer

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Re: Joined-wing and box-wing aircraft
« Reply #27 on: September 23, 2011, 07:43:11 am »
The Green Flight Challenge will be held September 25 – October 1, 2011 at the Charles M. Schulz Sonoma County Airport in California. Nine teams are registered to compete in the competition. Team Synergy is led by John W. McGinnis. They are located in Montana. Their aircraft is a clean sheet design, featuring laminar flow, wake-immersed propulsion, open thermodynamics, subsonic area ruling, composite construction, and five seats. Synergy is currently registered and has met the FAA inspection.

Seats: 6
Max. power: 142 kW
Span: 32.0 ft
Energy type: Bio-diesel


Sources:
 - http://www.synergyaircraft.com/
- Synergy: A Practical Lightplane for the New Century
- Proyecto Synergy, Buscando La Mαxima Eficiencia
- NASA Green Flight Challenge: Conceptual Design Approaches and Technologies to Enable 200 Passenger Miles per Gallon
- Synergy on Facebook (access to many other pics)

Offline Justo Miranda

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Re: Joined-wing and box-wing aircraft
« Reply #28 on: September 23, 2011, 08:22:10 am »
Focke Wulf Projectk 0310.025-1006

Offline Nik

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Re: Joined-wing and box-wing aircraft
« Reply #29 on: September 23, 2011, 09:41:26 am »
Phew ! I had to go google the FW oddity.Despite looking like a turbo-prop, it is piston-engined, via an extension shaft...

Offline hesham

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Re: Joined-wing and box-wing aircraft
« Reply #30 on: February 01, 2012, 01:36:46 pm »

Offline Skyblazer

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Re: Joined-wing and box-wing aircraft
« Reply #31 on: February 01, 2012, 01:40:43 pm »
Box wing or not, the wing surface is so ridiculous that I can't see that thing staying up in the air for a minute...

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Re: Joined-wing and box-wing aircraft
« Reply #32 on: February 01, 2012, 01:52:27 pm »
It doesn't look like there's enough wing area to produce sufficient lift to get that thing off of the ground.  Though a simple solution would of course just be to increase the takeoff speed. ;D

Offline Grey Havoc

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Re: Joined-wing and box-wing aircraft
« Reply #33 on: February 07, 2012, 12:05:45 pm »
The sole imperative of a government, once instituted, is to survive.

Offline hesham

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Re: Joined-wing and box-wing aircraft
« Reply #34 on: April 09, 2012, 03:50:11 pm »
Hi;


the Final optimized joined-wing aircraft configuration.

Offline Zeppelin

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Re: Joined-wing and box-wing aircraft
« Reply #35 on: April 09, 2012, 11:21:33 pm »
Can anyone summarise the advantages of these wings. Being joined do they have greater structural strength. The all seem much thinner then conventional wings - would that mean less room for fuel storage? Regards

Offline AeroFranz

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Re: Joined-wing and box-wing aircraft
« Reply #36 on: April 10, 2012, 12:01:50 pm »
In short: you have two wings of higher aspect ratio, and short chord. That might help some with achieving laminar flow (although the required sweep does not!).
The biggest plus is the fact that the wings are braced, so for a given strength they can be made lighter or with higher span. Both the high aspect ratio and the three-dimensional profile of the wing (seen from the front) help with induced drag.
All modern aircraft have four dimensions: span, length, height and politics.   TSR.2 got the first three right - Sir Sydney Camm

Offline Zeppelin

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Re: Joined-wing and box-wing aircraft
« Reply #37 on: April 11, 2012, 12:31:24 am »
Many thanks for the summary. Would such wings drive engines to be mounted of the main fuselage and not wing?
Regards

Offline RanulfC

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Re: Joined-wing and box-wing aircraft
« Reply #38 on: April 11, 2012, 05:09:15 am »
Would such wings drive engines to be mounted of the main fuselage and not wing?
Regards
You'll note in the various pictures the power plants are mounted on the wings in some designs and not on others. If the design uses thinner, longer, high aspect ratio wings then the power plants are probably going to be on the fuselage for strength and power carry-through reasons. If the wings CAN hold the engines then they probably will be mounted there such as in the Kuznetsov design shown. It's a design decision in the end.
 
BTW; I recall at one point seeing a drawing or "design" sketch of a BD-5J with joined/diamond wings and one point in time. Anyone else happen to recall seeing that or any information there-on?
 
Thanks
 
Randy

Offline hesham

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Re: Joined-wing and box-wing aircraft
« Reply #39 on: April 12, 2012, 03:11:44 pm »
What is this aircraft ?.


Offline Skyblazer

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Re: Joined-wing and box-wing aircraft
« Reply #40 on: April 12, 2012, 04:10:54 pm »
I'm nowhere near fluent in Russian, but the text seems to indicate a patent from the SibNIA company.

Offline hesham

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Re: Joined-wing and box-wing aircraft
« Reply #41 on: April 14, 2012, 03:58:41 pm »
I think that Russian's article is from NASA reports.

Offline hesham

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Re: Joined-wing and box-wing aircraft
« Reply #42 on: July 25, 2012, 09:28:20 am »
Hi,


here is the Prandtl Electrical VTOL Unmanned Aircraft;


http://www.skyboxeng.com/projects/projects.htm

Offline Mark Nankivil

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« Last Edit: January 16, 2013, 08:52:59 am by Mark Nankivil »

qxev

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qxev

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Re: Joined-wing and box-wing aircraft
« Reply #45 on: February 20, 2013, 10:33:33 am »






« Last Edit: February 20, 2013, 10:37:43 am by qxev »

qxev

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Re: Joined-wing and box-wing aircraft
« Reply #46 on: February 20, 2013, 10:42:13 am »
I'm nowhere near fluent in Russian, but the text seems to indicate a patent from the SibNIA company.


Siberian aircraft research university



Offline hesham

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Re: Joined-wing and box-wing aircraft
« Reply #47 on: February 20, 2013, 01:51:36 pm »
Very nice pictures Qxev.

qxev

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Re: Joined-wing and box-wing aircraft
« Reply #48 on: February 20, 2013, 02:38:39 pm »


Offline hesham

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Re: Joined-wing and box-wing aircraft
« Reply #50 on: March 03, 2013, 03:51:31 am »
Great Qxev,


the aircraft called Prandtplane or what ?.

qxev

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Re: Joined-wing and box-wing aircraft
« Reply #51 on: March 28, 2013, 12:09:35 pm »
Great Qxev,


the aircraft called Prandtplane or what ?.


Great Hesham
it is the modern version  Prandtplane
from Italy


Offline hesham

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Re: Joined-wing and box-wing aircraft
« Reply #52 on: March 28, 2013, 03:00:05 pm »
Thank you Qxev.

Offline Johnbr

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Re: Joined-wing and box-wing aircraft
« Reply #53 on: March 28, 2013, 03:04:15 pm »
+1

Offline Skyblazer

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Re: Joined-wing and box-wing aircraft
« Reply #54 on: April 08, 2013, 07:35:36 am »
Here is another box-wing design. I don't know anything about it except it's called the Stalker and might involve the Mikoyan bureau.

qxev

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Re: Joined-wing and box-wing aircraft
« Reply #55 on: April 08, 2013, 11:18:35 am »
Here is another box-wing design. I don't know anything about it except it's called the Stalker and might involve the Mikoyan bureau.


S-232  project...
6-8 local administrative planes with the jointed wing and forward horizontal plumage. The plane developed in common with experts of TsAGI within three years, but because of a lack of means of work were frozen at a stage of end of the outline sketch.
http://www.aviajournal.com/arhiv/1999/1099/st1c_1099.html

« Last Edit: April 08, 2013, 11:20:39 am by qxev »

Offline ucon

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Re: Joined-wing and box-wing aircraft
« Reply #56 on: April 08, 2013, 11:34:20 am »
Myasishchev "Horizont-2"


Project from SibNIA is S-2"Kasatka"

qxev

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Offline hesham

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Re: Joined-wing and box-wing aircraft
« Reply #58 on: April 08, 2013, 02:52:44 pm »
Very cool my dears Ucon and Stargazer.

qxev

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Offline Skyblazer

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Re: Joined-wing and box-wing aircraft
« Reply #60 on: April 12, 2013, 12:04:46 pm »
Another "Stalker" design, this time the Stalker-502, emanates from the TsAGI's NIO-3 bureau.

Since it's from TsAGI, it is probably only notional and does not announce an upcoming product...


[This is from a Stalker-501 presentation — a tilt-rotor design will be covered in a separate topic.]

qxev

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Re: Joined-wing and box-wing aircraft
« Reply #61 on: April 12, 2013, 12:08:17 pm »
Another "Stalker" design, this time the Stalker-502, emanates from the TsAGI's NIO-3 bureau.

Since it's from TsAGI, it is probably only notional and does not announce an upcoming product...





enormously.
many thanks for useful information

Offline Skyblazer

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Re: Joined-wing and box-wing aircraft
« Reply #62 on: April 18, 2013, 05:08:53 am »
More Stalker-502 and design variations can be seen in the Patents section:
http://www.secretprojects.co.uk/forum/index.php/topic,19108.0

Here's a couple of extra pics:

qxev

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Re: Joined-wing and box-wing aircraft
« Reply #63 on: April 18, 2013, 06:55:46 am »

Here's a couple of extra pics:
many thanks :)

qxev

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« Last Edit: June 10, 2013, 11:44:51 am by qxev »

qxev

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Re: Joined-wing and box-wing aircraft
« Reply #65 on: June 10, 2013, 11:45:05 am »
can be seen in the Patents section:


whether you will help, to learn here this patent?


http://www.sunny-boxwing.de/Greenwings.html
« Last Edit: June 10, 2013, 11:51:49 am by qxev »

Offline hesham

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Re: Joined-wing and box-wing aircraft
« Reply #66 on: June 11, 2013, 04:41:54 am »
Amazing projects Qxev.



Offline Skyblazer

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Re: Joined-wing and box-wing aircraft
« Reply #69 on: June 26, 2013, 07:44:26 am »
Sorry for not linking these earlier. So many Le Bourget photos to process and properly document!






qxev

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Re: Joined-wing and box-wing aircraft
« Reply #70 on: June 26, 2013, 07:54:23 am »

enormously! ! ! !


thank you very much!!


what it for firm?

Offline dan_inbox

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Re: Joined-wing and box-wing aircraft
« Reply #71 on: June 26, 2013, 11:49:52 pm »
Am I the only one to think that the plane on the photos posted by Stιphane will have an airflow problem?


I am not aerodynamics expert, but it looks like during rotation the air intake will be in the wake of the front wing, which is not the best of times to experience degradation of power...


Thanks for the photos. Wish I was there too.

Offline Grey Havoc

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Re: Joined-wing and box-wing aircraft
« Reply #72 on: July 21, 2013, 06:52:06 am »
A 2006 AFIT thesis paper that you may find interesting: http://www.dtic.mil/dtic/tr/fulltext/u2/a453708.pdf

Quote
                                            Abstract

The Air Force Research Laboratory’s Munitions Directorate has been looking to
extend the range of its small smart bomb. Corneille [6] has conducted tests to determine
the aerodynamic characteristics of joined wings on a missile and determine if joined
wings are more beneficial than a single wing configuration. The concept of retrofitting
wings on the bomb introduced an interesting problem: storage before deployment. This
study conducted steady-state low speed wind tunnel testing of a joined wing
configuration that morphed from a compact configuration for storage to a full extension.
These steady-state tests examine differing sweep angles of the same joined wing
configuration. The lift and drag as well as pitching moments and rolling moments were
determined and analyzed for the effects of morphing.



6. Corneille, Jennifer. Wind Tunnel Investigation of Joined Wing Configurations. Dept. of
the Air Force Air University. Wright-Patterson AFB, Ohio: Air Force Institute of
Technology, 1999.

The sole imperative of a government, once instituted, is to survive.

Offline hesham

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Re: Joined-wing and box-wing aircraft
« Reply #73 on: October 07, 2014, 03:22:43 pm »
From Kryl'ya Rodine 11/1992,


here is a box-wing aircraft,Beka.

Offline Skyblazer

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Re: Joined-wing and box-wing aircraft
« Reply #74 on: October 07, 2014, 03:32:51 pm »
"Beka" is not the name of the airplane. For a start it reads "Veka". It means "century". The title means the "biplane of the 21st century".

Offline hesham

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Re: Joined-wing and box-wing aircraft
« Reply #75 on: October 07, 2014, 03:55:47 pm »
Thank you my dear Skyblazer.

Offline hesham

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Re: Joined-wing and box-wing aircraft
« Reply #76 on: December 24, 2014, 05:16:27 am »
Hi,


here is a group of joined-wing and box-wing aircraft;


 1- Folded wing transport aircraft
 2- V/STOL aircraft
 3- Joined-wing space shuttle
 4- NASA agricultural aircraft
 5- Fighter
 6- Turboprop airliner


http://arc.aiaa.org/doi/abs/10.2514/3.45285?journalCode=ja

Offline .Tyler H

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Re: Joined-wing and box-wing aircraft
« Reply #77 on: December 24, 2014, 11:19:31 am »
I remember seeing a joined wing version of the S-3 that was supposedly going to be a replacement for the E-2 Hawkeye...  In searching Boeing E-X on Google I have found nothing, does anyone have any more information on it?

Attached is a picture from the book it is in.

Tyler
« Last Edit: December 24, 2014, 11:21:05 am by .Tyler H »

Offline hesham

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Re: Joined-wing and box-wing aircraft
« Reply #78 on: December 24, 2014, 01:28:29 pm »
Hi Tylor,


welcome aboard,and for Boeing EX,please see;


http://www.secretprojects.co.uk/forum/index.php/topic,2024.0.html

Offline hesham

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Re: Joined-wing and box-wing aircraft
« Reply #79 on: December 01, 2015, 03:36:07 pm »
Hi,

here is the White Diamond box-wing aircraft;

http://www.gibbsguides.com/Article26_White_Diamond_Part2.htm

Offline Skyblazer

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Re: Joined-wing and box-wing aircraft
« Reply #80 on: December 04, 2015, 09:46:42 am »
here is a group of joined-wing and box-wing aircraft;
 4- NASA agricultural aircraft

Aircraft #4 is the Rutan Model 58 Predator (or maybe 59, never knew which was which), developed for ATAC and later replaced with the more conventional Model 120, or Predator 480.

More on the Model 58/59: http://stargazer2006.online.fr/aircraft/pages/predator.htm
More on the Model 120: http://stargazer2006.online.fr/aircraft/pages/predator480.htm

Offline hesham

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Re: Joined-wing and box-wing aircraft
« Reply #81 on: December 04, 2015, 01:23:39 pm »
Many thanks my dear Skyblazer.

Offline Avimimus

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Re: Joined-wing and box-wing aircraft
« Reply #82 on: August 09, 2017, 07:15:12 pm »
So I OCR'd the text on the Siberian Aeronautical Institute S-2 and machine translated it. There may be plenty of errors:

Quote
В конце 90 годов в СибНИА был разработан аэродинамический проект высокоэффективного многоцелевого
самолета-амфибии с утраченным взлетом и посадкой. предназначенного для эксплуатации в различных
регионах земного шара. в том числе в районах. характеризующихся экстремальными климатическими
условиями. За основу проекта принята перспективная аэродинамическая схема замкнутого крыла с несущим
корпусом (патент СССР 1790529, приоритет СибНИА от 25 мая 1990 года)

Эта схема является развитием идей Главного конструктора Роберта Бартини, разработавшего и создавшего
ряд оригинальных самолетов различного назначения. В компоновках этих самолетов были использованы
перспективные решения. в частности применение несущего Фюзеляжа. а таюке интеграция силовой
установки с планером летательного аппарата для повышения его эффективности

Компоновка самолета характеризуется наличием несущего Фюзеляжа. представляющее собой крыло малото
удлинения, с пристыюванной :: его бортам системой крыльев большою удлинения. замкнутых в районе
концевых частей консолей. использованием специальной формы иесущето фюзеляжа удается улучшить
взлетно-посадшные характеристики за счет значительного благоприятного влияния близости подстилающей
поверхности. повысить безопасность при потере скорости. обеспечить эюсллуатации с водной. грунтовой.
заснеженной и ледовой поверхности. При этом используемый обьем внутри фюзеляжа значительно больше.
чем на самолетах обычной схемы.

Сочлененная схема крыльев позволяет использовать систему крыльев с большим удлинением. чем
обеспечиваются значительно более высокий уровень азродинамического качества (Kmax : 24) и требуемые
характеристики устойчивости и управляемости на всех режимах полета самолета без весовых потерь.

На самолете используется толкающий воздушный винт. расположенный в кольцевом обтекателеТакая
компоновка силовой установки позволяет создать чистую аэродинамическую Форму с максимальным уровнем
комфорта в пассажирском салоне и кабине фюзеляжа. повысить КПД винта на расчетном режиме. а также
обеспечить безопасность. удобство обслуживания и эксплуатации на земле и водной поверхности.

Таким образом в проект самолета-амфибии С-2 Касатка заложен комплекс перспективных технических
решений и идей Это позволяет обеспечить самолету высокий уровнь лето-технических. эксплуатационных и
экологических характеристик. высокую конкурентное пособность на рынке легких мносоцепевых самолетов

на базе данного проекта рассматриваются различные варианты модификаций“ пассажирский (до 6 человек).
комфортабельный административный (на 2-4 человека). транспортный (до 660 кг груза). а таюке вариант
безаэродромного базирования с шасси на воздушной подушке

In summary:

SibNIA S-2 "Kasatka" was designed by a team headed by Robert Bartini. It was designed to have good take-off and landing performance, and be able to operate in isolated and arctic conditions, as well as to have an amphibious capability.

It featured a lifting fuselauge which would lead to better performance in ground effect and have a relatively high volume. The box-wing design would allow higher aspect ratios and stiffness for a given weight. The pusher configuration was intended to provide easy access for maintenance, protect the propeller from debris, and insulate the passengers from the engine compartment.

Versions featuring 2-4 seats, 6 seats, or 660 kg cargo were considered. Air cushion systems were also considered as a replacement for landing gear.
« Last Edit: August 15, 2017, 09:48:08 pm by Avimimus »

Offline hesham

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Re: Joined-wing and box-wing aircraft
« Reply #83 on: August 10, 2017, 04:13:23 am »
Thank you Avimimus.

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Re: Joined-wing and box-wing aircraft
« Reply #84 on: January 02, 2019, 07:54:46 am »

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Re: Joined-wing and box-wing aircraft
« Reply #85 on: January 03, 2019, 11:51:14 am »
Here's what I believed to be a CG concept drawing for a joined-wing glider. Picked this up from a foreign language forum which was using this to explain the joined-wing concept. There was no reference to this glider design perhaps members in know can assist.


—————————————————————-

That CGI seems to have a propeller spinning in front of the nose. RD87E vaguely reminds us of Burt Rutan’s tiny tandem-winged Quickie airplane. The single-seat Quickie flew on a mere 18 horsepower!

Makes us wonder what would have happened if Burt Rutan had chosen to experiment with box wings??????
A few of Rutan’s designs (e.g. Voyager) had parallel wings joined by fuselage booms,  it those don’t really count as box-wings.
« Last Edit: January 03, 2019, 11:53:36 am by riggerrob »

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Re: Joined-wing and box-wing aircraft
« Reply #86 on: January 03, 2019, 12:05:27 pm »
I remember seeing a joined wing version of the S-3 that was supposedly going to be a replacement for the E-2 Hawkeye...  In searching Boeing E-X on Google I have found nothing, does anyone have any more information on it?

Attached is a picture from the book it is in.

Tyler
————————————————————

They planned to install fixed radar receivers along the wings’ leading and trailing edges, converting the entire wing(s) into one giant radar antenna. They hoped the new antenna configuration would work as well as the rotating-radar discs on top of Grumman E-2, Boeing 707 AWACS, some Lockheed P-3s, etc.

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Re: Joined-wing and box-wing aircraft
« Reply #87 on: January 09, 2019, 01:43:46 am »
Mr. Avimimus, are you sure that Bartini was connected with Kasatka-2 project?)))

Offline hesham

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Re: Joined-wing and box-wing aircraft
« Reply #88 on: January 09, 2019, 04:27:30 am »
Mr. Avimimus, are you sure that Bartini was connected with Kasatka-2 project?)))

My dear Ucon,what is your knowledge about this ?.

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Re: Joined-wing and box-wing aircraft
« Reply #89 on: January 09, 2019, 07:18:25 am »
I remember seeing a drawing of a Harrier fuselage combined with a joined wing in a book or journal decades ago, but I haven't been able to find or track down a reference - is anybody aware of a corresponding illustration source?

Martin
« Last Edit: January 09, 2019, 08:10:07 am by martinbayer »
Would be marching to the beat of his own drum, if he didn't detest marching to any drumbeat at all so much.