Slashdot Mirror


Shape Changing Plane In Development

Eh-Wire writes "The University of Florida has a short article on the "morphing wing" drone they are developing for a small aircraft that can swoop through parking garages, dive into alleys and land on balconies. Close-up video of seagulls in flight was the inspiration for the design of the drone. A still image of the drone shows an aircraft that looks surprisingly gull-like. A video shows the "wing morphing" in action on a static mounted drone. There is also a link to quite a few more videos in the article but it's not real obvious. Some guys get all the phun jobs!"

35 of 212 comments (clear)

  1. So how long... by Drooling+Iguana · · Score: 4, Funny

    So how long until they make one that can change into a giant robot?

    --
    ... I'm addicted to placebos
  2. The wing shape isn't new... by Assmasher · · Score: 4, Informative

    MAW (Mission Adaptive Wing) designs have been tested since the sixties at least (probably earlier.) Still cool though.

    --
    Loading...
    1. Re:The wing shape isn't new... by rumpledoll · · Score: 5, Insightful

      As old as powered flight. The Wright Brothers patented a wing warping system that was used on the Wright Flier, which was of course, the first powered heavier than air craft to successfuly fly.

    2. Re:The wing shape isn't new... by LWATCDR · · Score: 4, Informative

      Actually all modern wings change shape in flight. Between flap and movable leading edges all change the airfoil of the wing to a degree. The Mission Adaptive Wing was a more extreme version of this.

      --
      See my blog http://ilovecookes.blogspot.com/ for light hearted technical information.
    3. Re:The wing shape isn't new... by Analogy+Man · · Score: 3, Informative
      The 90 degree projection you reference can also be seen on a Boeing 747-400 or an Airbus A320. The principle is to increase the effective span of the wing. The higher pressure air on the lower surface of the wing wants to get to the lower pressure area on top of the wing. If you are clever about it the increased lift (or decreased lift induced drag depending on how you want to do your bookkeeping) is more than the increased skin friction and weight of additional structure.

      By changing shape you may be talking about the mechanisms that change the angle of attack of the rotors as they spin, as the blade travels back, it experiences lower relative airspeed if the helicopter is moving forward. In some instances this is accomlished at the hub, but it could also be done by generating a twist in the blade.

      --
      When the people fear their government, there is tyranny; when the government fears the people, there is liberty.
    4. Re:The wing shape isn't new... by TinyManCan · · Score: 3, Informative
      This too is an old idea. Basically when dealing with any sort of foil (such as a wing or rotor) you can't really use the last two or three feet effectively, as the low pressure air from the top slips around the end of the wing instead of over it. Putting some sort of vertical or 90 degree winglet on the end traps the air so that is must flow over the wing surface as designed.

      By placing the end pieces on the wing you are effectively adding two or three feet to the length of the wind, and only taking a small increase in friction. Good times all around.

    5. Re:The wing shape isn't new... by AndersOSU · · Score: 3, Interesting

      And when the air moves from the high-pressure underside to the low pressure top-side a very cool (but aerodynamically undesirable) effect called wing tip vorticies are formed. There are some awsome pictures of this, which I cannot be bothered to find.

      Actually there was a theory that the reason that geese fly in a V formation was that they borrowed the up-draft shed from the wingtip from the goose ahead of them to significally increase flight efficiency. Don't know if this theory has merit, but I learned of it in a fluid dynamics class.

  3. Look! Up in the sky! by Prospero's+Grue · · Score: 3, Funny
    It's a bird!

    It's a plane!

    ...

    What the heck is that thing?

    --
    The opinion above is fiction. Any similarity to real opinions, including facts and logic, is purely coincidental.
  4. Looks more like a certain Italian Renaissance by WillAffleckUW · · Score: 5, Interesting

    inventor's design than it does the Wright Brothers designs.

    But probably because he based his design on actual seagulls and terns as well.

    I for one, welcome our new privacy-impaired overlords.

    --
    -- Tigger warning: This post may contain tiggers! --
  5. sooo... by Tepshen · · Score: 5, Funny

    Wonder plane powers activate! Form of .... a slightly different plane!

  6. Meh... by GypC · · Score: 3, Funny

    ... why not just use seagulls with lasers on their heads?

    1. Re:Meh... by haystor · · Score: 3, Funny

      There is no way a seagull could carry a shark.

      --
      t
  7. Bye bye birdie. by DrEldarion · · Score: 4, Funny

    Well, there goes the bird population in countries with paranoid leadership.

  8. Thankfully cows don't fly... by mopslik · · Score: 5, Funny
    ... seagulls in flight was the inspiration for the design of the drone.

    So, when flying over crowds of people, does this new plane drop its cargo every so often?

  9. Re:Look! Up in the sky! by Tackhead · · Score: 4, Funny
    > It's a bird!
    > It's a plane!
    > ...
    > What the heck is that thing?

    Holy fuck, it's an elephant! Either get a big umbrella, lay off the booze, or run for your lives!

  10. I see shape-changing planes on TV all the time by Anonymous Coward · · Score: 4, Funny

    What's the big deal? I see footage of planes changing shape on those "historic aviation" shows on the Discovery Channel all the time.

    The planes tend to change shape in a spectacular fashion when something goes wrong and the ground intersects the plane's flight path.

  11. Seagull? by Red+Flayer · · Score: 3, Funny

    Oh, great, get a few of these and we have a whole robotic Flock of Seagulls.

    Talk about modern warfare, it's a whole new wave of drones.

    --
    "Trolls they were, but filled with the evil will of their master: a fell race..." -- J.R.R. Tolkien on Olog-hai
    1. Re:Seagull? by GypC · · Score: 4, Funny

      But Iran's so far away...

  12. Coralized link to Mpeg by Guano_Jim · · Score: 5, Informative

    Here's the video

    Coralized, so hopefully people will be able to view it.

    I'm not sure if the file goes over Coral's size limit.

  13. full mirrors available of videos by winkydink · · Score: 3, Informative

    Here.

    A plane that flaps its wings. Hunh.

    --

    "I'd rather be a lightning rod than a seismometer." -Ken Kesey

  14. Not how long but how high jump jump jump by WillAffleckUW · · Score: 3, Funny

    So how long until they make one that can change into a giant robot?

    It's not making it into a giant robot that's the problem, you simply connect the shape changing plane to the mobile gun platform torso to do that.

    It's making it big enough to carry the teenage pilots inside the giant robots that's taking all the time.

    --
    -- Tigger warning: This post may contain tiggers! --
  15. Seagulls, eh? by dlefavor · · Score: 3, Funny

    Jonathan Livingston Drone just doesn't have the right mix of romance, awe, dread, and reverence if you ask me.

  16. Evolution by meditation_dude · · Score: 4, Insightful

    It's surprising that we don't copy nature more often. I mean, animals in existence today have had millions of years or more to adapt, producing incredibly elegant solutions to problems. Of course, reverse engineering these adaptations is difficult, because there's no manual, and no real designer to interrogate.

  17. This is exciting. by keilinw · · Score: 4, Interesting

    Looking at the differences between a bird and an airplane one can see obvious benefits of each. What conventional aeronautics have not been able to acomplish is the agility and dexterity with wich birds can manuvere in flight. Birds also have an incredible ability to fly at slow speeds and even recover from dangerous situations. All of these qualities are what we NEED in our future aeronautical designs.

    As a Private Pilot I was getting excited by the prospect of the Mohler Flying Car, or even one of those (relatively) cheap DIY helicopters. But there was always something in the back of my mind that said that aircraft NEED to be more like birds.

    Admittedly, the technology ISN'T as impressive as one would imagine. BUT, I applaud any attempt at changing the way things are done. In fact, I read an article yesterday that claimed that Japan is doing experiementation with a supersonic (Concorde-like) aircraft! Lets see what the future holds: flying cars, supersonic flight for everyone, personal helicopters, more agile designs, deployable parachutes, better computer assisted flight (from GPS, ALS, to auto performance enhancements).....

    Its about time someone in the field of aeronautics changed things....things have remained the same for WAY TOO LONG.

    WHY IS IT THAT A 1940's ERA war plane can KICK my Cessna's Butt????????? THIS DOES NOT SEEM LIKE PROGRESS.

    1. Re:This is exciting. by YrWrstNtmr · · Score: 4, Insightful
      WHY IS IT THAT A 1940's ERA war plane can KICK my Cessna's Butt????????? THIS DOES NOT SEEM LIKE PROGRESS.

      For the same reason that a 1950 F1 car can kick a 2005 Geo's ass.
      The Geo and the Cessna do win on reliability, comfort, and price, though.

    2. Re:This is exciting. by Peldor · · Score: 4, Funny
      WHY IS IT THAT A 1940's ERA war plane can KICK my Cessna's Butt?????????

      I know I'm just guessing here, but it's probably because you don't have 6 50-caliber machine guns mounted on your Cessna.

  18. complete seagull transformation by logandr · · Score: 4, Funny

    oh great - so now we'll have robot gulls fighting over french fries in the McDonalds dumpsters. Of course as robots they'll be able to rip the sides right off the dumpsters...

  19. Oblique All Wing by Baldrson · · Score: 3, Interesting

    My favorite variable geometry aerodynamic structure is R. T. Jones' oblique all wing (PDF warning). Its basically just a highly eccentric elipse that flies. At 0 its angle of attack is 0. At Mach 1.6 its angle of attack is 60 degrees. As an SST topping out at Mach 1.6 it can achieve per-passenger fuel economy similar to a subsonic jumbo jet.

  20. Wait a minute! by Conspiracy_Of_Doves · · Score: 3, Funny

    This thing has hinges on its wings! What a gyp! Screw that, that isn't morphing. I want a plane where the wings are made of a single peice of some kind of high-tech polymer that changes shape when electricity is applied to it.

  21. Materials are the problem, by CyberLord+Seven · · Score: 3, Informative

    not lack of access to a designer. Where do you find a material with the compressive strength of bone and low density? How do you replace the tensional strength and flexiblity of muscle?
    If I had any of that $h17 I could build some HELLACIOUS ROBOTS and conquer...ummm, spread democracy throughout the world.

    --
    We have always been at war with Eurasia!
  22. Also... by macthulhu · · Score: 3, Funny

    It looks like they also designed a web server that can "morph" into a molten slag heap...

    --

    Someday a real rain is gonna come...

  23. Ups and Downs by Ancient_Hacker · · Score: 4, Insightful
    Wing-morphing on real airplanes is usually done thru the auspices of flaps, droops and leading-edge slats. These are the sucessful morphing methods, as seen on almost every high-performance airplane.

    If they're particularly adventurous, the designers will do ti by making the wing sweep angle changeable, like in the F-111, F-14 and B-1. Hmmm, two dogs out of three....

    It hasnt been done the way this video depicts in real planes as there's a lot of costs:

    • Making the wing hinged or flexible means you need a whole heapin helping of actuators to keep it in position. Actuators are made of steel-- very heavy. if it's a fighter plane, the actuators have to be able to hold the wing in position under multiple-G loads. But that requires heavier actuators, which increase the loads...
    • Actuators are usually hydraulically powered. Not good in a military airplane which often loses hydraulics due to flak and bullets.
    • Hinged or flexible wings usually can't be hollowed out to hold fuel, landing gear, or munitons. Which makes the rest of the plane bigger in proportion to hold those items.
    So you end up with a plane that's big, heavy, unreliable all the time, versus having the flexible wing, which only helps in some flight regimes, some of the time. Generally the good doesnt outweigh the bad.
  24. The wing warping patent battles by PapayaSF · · Score: 5, Informative

    As old as powered flight. The Wright Brothers patented a wing warping system that was used on the Wright Flier, which was of course, the first powered heavier than air craft to successfuly fly.

    Very true, and Slashdot readers might be interested to know that wing warping was the subject of a huge patent battle between the Wrights and Glenn Curtiss. See here and here. The consensus is that the patent fight significantly inhibited US aircraft development at the time.

    --
    Q: What does the "B." in Benoit B. Mandelbrot stand for? A: Benoit B. Mandelbrot
  25. First Powered Flight by kurt555gs · · Score: 4, Funny

    Im sorry , but just because the Smithsonian was PAID to never reveal that the Write Brothers were not the first to fly in a powered plane, it simply is NOT TRUE: See the following link: http://www.ctie.monash.edu.au/hargrave/pearse1.htm l

    --
    * Carthago Delenda Est *
  26. They should make one where... by Anonymous Coward · · Score: 3, Funny

    They should make one where you have this regular-looking set of wings, and when you go into attack mode, these wings, or "foils," open up and take on the appearance of a large "X" when seen from the front or back.

    And I want to mount four of our new laser cannon on it. It should also be able to launch some photon torpedoes. And have a maintenance droid along for the ride.