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Mixing it Up in Marietta

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posted on Aug, 27 2015 @ 11:32 PM
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AvWeek released an article on a Lockheed Martin Aeronautics Company effort, focusing on a fuel efficient next generation C-17-like platform.

Lockheed Refines Hybrid Wing-Body Airlifter Concept

So, any conjecture out there? Does this mean Lockheed/Boeing lost LRS-B, and now are busy looking at other revenue streams - such as this and an unmanned U-2 replacement?

Curious if the "flying wing" portion, forward of the "aft fuselage", is similar to other Lockheed designs currently in fight operation?

Notice the comment "conventional T tail incurs a 5% drag penalty relative to a pure BWB". Does this imply the LRS-B entry likely has a tail, due to the small drag increment?





Lockheed calculates the aircraft will burn 70% less fuel than the Boeing C-17 through a combination of better aerodynamics, newer engines and lighter structures.




The conventional T tail incurs a 5% drag penalty relative to a pure BWB, but provides robust control and avoids the cost and risk of developing new control effectors and algorithms for a flying wing to enable STOL and manage the abrupt center-of-gravity (CG) shift when airdropping heavy loads.




Over-wing nacelles have long been avoided in aircraft design because of adverse transonic interference with the wing, but careful optimization by Honda of the engine location on the HondaJet has given the configuration new credibility.




Interestingly, despite diameters ranging from the GEnx's 11.8 ft. to an open rotor's 21 ft., “the wing optimized out to the same shape for all three engines,” says Wick. "The same wing for all three allows the engine installation to be modular. We could build it today and it would be designed to be able to be reengined."

edit on 27-8-2015 by TAGBOARD because: (no reason given)




posted on Aug, 28 2015 @ 12:55 AM
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Nice!

S&F for the pic and of course, the story/

That is one nice looking bird.

P



posted on Aug, 28 2015 @ 08:16 AM
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a reply to: TAGBOARD

LRSB won't have a tail like in the picture. 5% makes a big difference with that sort of platform and really isn't needed. It will also increase it's RCS which would be a huge no-no for the LRS.



posted on Aug, 28 2015 @ 08:20 AM
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a reply to: TAGBOARD

There are two more tanker competitions, and even with the C-5 upgrades they'll need to be replaced. There's also the civil cargo market.



posted on Aug, 28 2015 @ 08:34 AM
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Wasnt there about 6 months ago an algorithm worked out that by adding fairings etc could increase the efficiency of large cargo and bombers with both fuel and duration?NASA,DARPA,BOEING,NORTHROP??????



posted on Aug, 28 2015 @ 12:03 PM
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a reply to: TAGBOARD
Is that planform already flying in a prototype?
I ask because it looks remarkably like what I saw back in may, as it was flying from Nevada and back over the central valley.



posted on Aug, 28 2015 @ 12:06 PM
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a reply to: punkinworks10

There are scale models flying but not a full sized platform yet. The latest model is almost full size.
edit on 8/28/2015 by Zaphod58 because: (no reason given)



posted on Aug, 29 2015 @ 12:24 AM
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a reply to: punkinworks10

Interesting. Can you go into more detail on your sightings?



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