Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Not only F15s

  1. Mar 21, 2009 #1

    wolram

    User Avatar
    Gold Member

  2. jcsd
  3. Mar 21, 2009 #2
    It doesn't look very real. Can F-15 fly with one wing?
     
  4. Mar 21, 2009 #3

    Danger

    User Avatar
    Gold Member

    I've only watched that link once, and I've had a few beers, but I feel inclined to call ******** on it. Right up until the landing, I thought that it was plausible, but that last-second flip into landing attitude just couldn't happen. The only reason that I didn't dismiss it outright is that some aircraft fusilages generate a large amount of lift independent of that provided by the wings. That could possibly allow for a semi-controlled landing with only one wing.
     
  5. Mar 21, 2009 #4
    Dunno, it could be, many aircraft can fly http://www.bruce.ogilvy.clara.net/text/training/aero/a12.html [Broken]. 90 degrees of bank, tail low, nose hight and the trust vector combined with fuselage lift combined is enough to keep it level, like Dan said.

    The flip to the landing may not be magic either, the thing is unbalanced, the weight of the wing pulling it level, and apparantly the aileron had enough command to avoid generating lift with that wing.

    The magic of the F-16 landing is not so much aerodynamics but more system redundancy. With such a damage, one would expect all hydraulic systems to drain completely which would inevitably lead to loss of control. Other than that, with such a fuel leak, what portion of the fuel is leaking into the engine bay? How long till the fatal explosion? I don't think, this it was what a superior pilot would have done, trying to land it.
     
    Last edited by a moderator: May 4, 2017
  6. Mar 21, 2009 #5

    Borek

    User Avatar

    Staff: Mentor

    It looks like an aerobatics plane (Zivko Edge 540?), they are designed to deny physics.
     
  7. Mar 21, 2009 #6
    Is there any question of whether or not this is fake? When it lands, you can tell the plane is a CGI model. The cockpit hatch opens awkwardly, and the prop slows and then stops unnaturally. Not to mention, the cameraman is the best in the world and should be on a Hollywood set instead of filming shorts for video sites, because it's pretty amazing how he was able to keep a speeding plane framed perfectly as it circled him several times at high speeds.
     
  8. Mar 21, 2009 #7

    Borek

    User Avatar

    Staff: Mentor

    Perhaps I am blind, but I can't see it.
     
  9. Mar 21, 2009 #8

    DaveC426913

    User Avatar
    Gold Member

    The reason this is entirely plausible is because these stunt planes are way over-powered. They don't need the wings to provide lift - just point the thrust skyward and up it goes. The wings serve more as a place to put control surfaces.
     
  10. Mar 21, 2009 #9

    Q_Goest

    User Avatar
    Science Advisor
    Homework Helper
    Gold Member

  11. Mar 21, 2009 #10

    DaveC426913

    User Avatar
    Gold Member

  12. Mar 21, 2009 #11

    Borek

    User Avatar

    Staff: Mentor

    If it is not real, RC seems to me much more likely than CGI.

    I have seen what can a good RC model (huge model of Extra 330, something like 7 or 8 feet wing span) do when flown by a skilled operator. I wonder what is a power/mass ratio for a model and for a real plane. Model was able to just hang on the propeler lift, to some extent that looked similar to what happens just before the landing.
     
    Last edited: Mar 21, 2009
  13. Mar 21, 2009 #12

    russ_watters

    User Avatar

    Staff: Mentor

    Pretty much, yeah.
    Exactly. If you've never seen one of these things in action in normal circumstances, you should watch one before calling BS on this.

    In addition to the power of the engine, the torque is immense. The wings are also partly there to counteract that torque. I don't know which direction the prop rotates, but the pilot may have gotten lucky and had the correct wing fall off. One wing induces a huge torque in the other direction (inducing the spin at the beginning), the torque of the prop counteracts it, enabling control to be restored maintained in the knife-edge flight. The recovery is problematic, though, since it is spiraling down and increasing power would seem to be the last thing you want to do.

    Heroic and amazing, to be sure, but i believe it is real.
     
    Last edited: Mar 21, 2009
  14. Mar 21, 2009 #13

    russ_watters

    User Avatar

    Staff: Mentor

    I don't see any of that either, and:
    What are you talking about?! The camera work is terrible!

    Do you call this perfectly framed?:
     

    Attached Files:

  15. Mar 21, 2009 #14
  16. Mar 21, 2009 #15
    an F-15 can land on one wing hence the israeli air force pilot who did it before, but its hard to tell the reality of this film.
     
  17. Mar 21, 2009 #16
    Um, yeah. Do you really have to ask if this BS is fake?
     
  18. Mar 21, 2009 #17

    Danger

    User Avatar
    Gold Member

    It's not the ability of the thing to flip that bugs me. What I can't quite believe is that it could so precisely snap to the exact proper roll attitude with no overshoot whatsoever. That takes enough real skill with two wings.
     
  19. Mar 21, 2009 #18

    OmCheeto

    User Avatar
    Gold Member
    2016 Award

    It looked fairly real to me when I first saw it.
    But AV weekly says it's a hoax.


    I didn't realize RC airplanes had gotten so large. Back when I was a kid, they only had 2 foot wingspans. The ones nowadays have 6 foot wingspans.

    There's also a video where someone has dissected various images from the original video and confirmed that it is fake:

    https://www.youtube.com/watch?v=<object width="425" height="344"><param name="movie" value="http://www.youtube.com/v/J72y_qFV2oc&hl=en&fs=1"></param><param [Broken] name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.youtube.com/v/J72y_qFV2oc&hl=en&fs=1" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="425" height="344"></embed></object>

    I double checked. It's true.

    I believe the pilot and cockpit cover opening at the end were added with CGI.

    Very convincing hoax. Had me fooled.

    I think it is the fact that it is possible in a real sized stunt plane that makes it so believable.

    We should try and talk Andre into trying it. :wink:
     
    Last edited by a moderator: May 4, 2017
  20. Mar 21, 2009 #19
    No, it's just that when you were a kid you never knew that RC airplanes were so large. Model airplanes have been around since the early 1920's, and have had large wing spans.

    Do you really have to consult a website to see if that video is fake? It's garabage.
     
    Last edited by a moderator: May 4, 2017
  21. Mar 21, 2009 #20

    OmCheeto

    User Avatar
    Gold Member
    2016 Award

    Yes. I'm a boat geek, not a plane geek. The kinematic anomalies in the video flew right past me.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Not only F15s
  1. Women only (Replies: 86)

  2. For Evo only (Replies: 8)

  3. Only A Movie (Replies: 0)

  4. Only me! (Replies: 8)

  5. For Americans only (Replies: 55)

Loading...