Joined-wing and box-wing aircraft

hesham · 18 December 2007

Hi,

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

Orionblamblam · 22 December 2007

hesham said:
Hi,

a project for ring wing double deck airliner.

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

hesham · 31 July 2008

Hi,

box-wing aircraft.

Antonio · 31 July 2008

hesham,

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

Thanks,

Antonio

boxkite · 31 July 2008

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

hesham · 1 August 2008

hesham said:
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.

hesham · 1 August 2008

Hi,

http://www.abovetopsecret.com/forum/thread192824/pg1

amsci99 · 3 August 2008

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.

hesham · 5 December 2008

Hi,

http://sysd.org/stas/taxonomy/term/9

hesham · 4 February 2009

A joined wing aircraft;
http://adg.stanford.edu/aa241/intro/futureac.html

hesham · 31 March 2009

Hi,

http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19900005777_1990005777.pdf

Retrofit · 31 March 2009

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

Retrofit · 1 April 2009

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

hesham · 1 April 2009

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

hesham · 6 April 2009

Hi,

http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19890009036_1989009036.pdf

hesham · 13 June 2009

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

Mr London 24/7 · 8 July 2009

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"

hesham · 8 July 2009

Hi,

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

Mr London 24/7 · 8 February 2010

"UNIQUE STEALTH UNMANNED AERIAL VEHICLE - HOUCK AIRCRAFT DESIGN PROGRAM"
(A patented MAV/UAV joined-wing aerofoil concept)

(Volume 1: Program Overview)
http://www.dtic.mil/cgi-bin/GetTRDoc?AD=ADA494088&Location=U2&doc=GetTRDoc.pdf

(Volume 2: Prototype Report)
http://www.dtic.mil/cgi-bin/GetTRDoc?AD=ADA494062&Location=U2&doc=GetTRDoc.pdf

With funding....:

http://www.globalsecurity.org/military/library/budget/fy2006/usaf-peds/0602201F.pdf
http://www.globalsecurity.org/military/library/budget/fy2007/usaf-peds/0602201f.pdf
http://www.dtic.mil/descriptivesum/Y2008/AirForce/0602201F.pdf

hesham · 20 December 2010

Hi,

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

Grey Havoc · 20 June 2011

The Rutan Model 58 and Model 59 both come under this category.

igor-mich · 21 June 2011

Retrofit said:
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.

Grey Havoc · 21 June 2011

Let's not forget the Boeing EX!

Stargazer · 21 June 2011

John Wolkowitch's ACA Industries JW-1 and derivative projects:

igor-mich · 21 June 2011

In 1977, Mr. Kuznetsov was designed to Moscow Aviation Institute super-heavy transport aircraft with diamond-shaped wing.

Grey Havoc · 21 September 2011

Here's a bit more info on Lockheed's box wing research and concepts: Lockheed future biplane freighter aircraft

hesham · 23 September 2011

Hi,

here is anther box-wing aircraft patent;

http://www.google.com/patents?id=GDwZAAAAEBAJ&pg=PA7&dq=vertical+take+off+composite+aircraft&hl=en&ei=ZoN8Tu2lBMPLtAb26thS&sa=X&oi=book_result&ct=result&resnum=4&ved=0CDcQ6AEwAzi0AQ#v=onepage&q=vertical%20take%20off%20composite%20aircraft&f=false

Stargazer · 23 September 2011

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 Máxima 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)

Justo Miranda · 23 September 2011

Focke Wulf Projectk 0310.025-1006

Nik · 23 September 2011

Phew ! I had to go google the FW oddity.Despite looking like a turbo-prop, it is piston-engined, via an extension shaft...

hesham · 1 February 2012

A box-wing patent;

http://www.faqs.org/patents/imgfull/20110180660_02

Stargazer · 1 February 2012

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...

AAAdrone · 1 February 2012

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

Grey Havoc · 7 February 2012

SPF thread on the Lockheed Martin Environmentally Responsible Airliner (ERA).

hesham · 9 April 2012

Hi;

the Final optimized joined-wing aircraft configuration.

Zeppelin · 10 April 2012

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

AeroFranz · 10 April 2012

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.

Zeppelin · 11 April 2012

Many thanks for the summary. Would such wings drive engines to be mounted of the main fuselage and not wing?
Regards

RanulfC · 11 April 2012

Zeppelin said:
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

hesham · 12 April 2012

What is this aircraft ?.

Joined-wing and box-wing aircraft

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