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Tomcatfreak


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#4346 2009-10-11 06:44 GMT-5 hours    
As the SU-47 is only a technology demonstrator, we will never see it in service. But does anyone know, if some of it`s technologies, like the forward swept wings, will be integrated in the 5th generation fighter?

For me the SU-47 has an outstanding design, and I would like to see a bird like this in the skies.

I found it for the flight sim, some days ago, must take a screen shot, to show you ;)

*but it can`t beat the Tomcat *

F-14 Tomcat 4-ever!:)

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N74JW


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#4347 2009-10-11 08:50 GMT-5 hours    
Hello,

The Su-47's technology benefits lie in their application to Russian industry as well as their end result. Giving these companies the skills and practice working with things like composite materials and RAM, can make integration into existing platforms much more possible.

Wikipedia article: http://en.wikipedia.org/wiki/Sukhoi_Su-47

Airforce-technology.com article: http://www.airforce-technology.com/projects/s37/

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Tomcatfreak


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#4348 2009-10-11 12:24 GMT-5 hours    
Why don`t they use the forward swept wings?

F-14 Tomcat 4-ever!:)

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N74JW


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#4349 2009-10-12 11:41 GMT-5 hours    
I am not sure. I am not an aerodynamic expert, though I am not ignorant to the subject. I would imagine that the forward swept arrangement is not as efficient in all flight envelopes. The Delta wings and trapezoidal shapes have more wing area than a forward-swept design. The F-15 is probably the best example of versatile wing design. Variable geometry wings, F-14, Tornado, are efficient, but the benefits outweigh the costs in additional weight, lost fuselage space, and complexity.

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ikaris


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#4355 2009-10-21 14:13 GMT-5 hours    
Hi! Though the FSW grant a better maneuverability (related to a standard wing with the same area), especially at low speed and/or high AoA, and a higher lift in the same conditions, the main problem is the need to have a stronger (and therefore heavier) wing structure, to counteract the torsion induced to the wings' tips by the airflow. This means bigger struts, with even less available space inside the wing and in the lower part of the fuselage. Today, the improvements given by better designed aerodynamics surfaces, better FbW, improved (capable of operations in extreme airflow conditions) and more powerful engines, and other devices like the thrust vectoring nozzles, have killed this solution, until, at least, it will be possible to have lighter alloys... 'Til then bye, and.... Fly high!

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