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Old Mar 04, 2012, 07:29 AM
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Amazing ! A model airbus a310 that takes offf,flies and lands that slow !


http://www.youtube.com/watch?v=4dBZN...ature=youtu.be
Last edited by RcLento; Mar 04, 2012 at 01:14 PM.
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Old Mar 04, 2012, 11:28 AM
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It could just be me, but something doesnt look right with that video, either professionally super-imposed, or slowed down.
Old Mar 04, 2012, 11:44 AM
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I heard somewhere that the fuselage was filled with helium or something to that effect. The plane is already built as light as humanly possible and it's more like a heavy EDF blimp than anything.

Plus, Jurgen filmed it. He takes a lot of videos of clever German aircraft; the fact that his name is on that video would be enough for me to accept that it's perfectly real.
Old Mar 04, 2012, 11:46 AM
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Why is this in Electric Motor Design and Construction?
Old Mar 04, 2012, 11:49 AM
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This is the same thing outside.
A big plane built extremly light with a very low wingloading.

Video Pilatus 001.MOV (2 min 22 sec)
Old Mar 04, 2012, 11:50 AM
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Quote:
Originally Posted by C₄H₁₀ View Post
I heard somewhere that the fuselage was filled with helium or something to that effect. The plane is already built as light as humanly possible and it's more like a heavy EDF blimp than anything.

Plus, Jurgen filmed it. He takes a lot of videos of clever German aircraft; the fact that his name is on that video would be enough for me to accept that it's perfectly real.

Helium would make sense. It has to be a blimp that is the only way that will work. Here is another one in the foamies scratchbuilt section...

https://www.rcgroups.com/forums/show...9#post20934205
Old Mar 04, 2012, 01:29 PM
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Quote:
Originally Posted by C₄H₁₀ View Post
I heard somewhere that the fuselage was filled with helium or something to that effect. The plane is already built as light as humanly possible and it's more like a heavy EDF blimp than anything.

Plus, Jurgen filmed it. He takes a lot of videos of clever German aircraft; the fact that his name is on that video would be enough for me to accept that it's perfectly real.
I dont think so that helium can be because it has to take off as vtol then !
Old Mar 04, 2012, 01:30 PM
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Originally Posted by C₄H₁₀ View Post
Why is this in Electric Motor Design and Construction?
Its here because maybe someone can explain what kind of light motor can make this birds fly ! or any comments about motors what they have !
Old Mar 04, 2012, 01:34 PM
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Why would helium mean it had to be a VTOL craft? It's not a balloon; the helium is just there to reduce its density and lower the total wing loading.

The motors are probably just ordinary RC aircraft motors. Nothing super-special about them.
Old Mar 04, 2012, 02:23 PM
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These BIG slow planes all seem to have slots between the control surfaces and the wings.
That must help a lot.
I believe that they are just built very light and they look like they are going slower than my plane because they are so big. My plane with a 32" wingspan would take about the same time to traverse that large space but look like it was going much faster in a video and it would look like a small plane in the distance. To put it another way, think about zooming the camera way out to view most of the large indoor space - if you did that to film my flight, my plane would look very small and take about the same time to make one circuit around the room.

Walt
Old Mar 04, 2012, 03:03 PM
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its filled with helium, you can even see the way the fuselage is slightly warped due to some defects in the envelope. Whoever made the envelope for that is really talented as the seams in the fuse are barely visible. As for EDF's they're just ducted props, they're not any available EDF.
Old Mar 04, 2012, 08:07 PM
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I find that totally believable. I doubt that helium was used. I do suspect that it's made mostly of very light foam with CF where needed. One thing to note is that the ducts are inside of another duct. This would lead to a bit of a venturi effect, increasing the available thrust. There's a bunch of guys in Texas, I believe, that are also making very large, extremely lightweight planes that fly ridiculously slow indoors. I'll see if I can find some of the videos.
Old Mar 04, 2012, 08:13 PM
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Guys... When I say I heard something somewhere, it means I definitely heard it somewhere. The Airbus is full of helium. Martin Muller built it. And then filled it with helium.

I'm very sure of this.
Old Mar 04, 2012, 08:15 PM
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Here's an original video. Read the comments; Jurgen knows what he's talking about. He was there and he filmed it.

modell-hobby-spiel 2011 - Airbus A310 in Action (3 min 7 sec)
Old Mar 04, 2012, 09:21 PM
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My mistake. I didn't realize it was only a two meter plane. Unfortunately, an Error 500 issue prevents me from finding the videos from the guys in texas.

A few minutes on you tube yielded this:

Giant Slow-Flying C-47 Model Indoors (8 min 35 sec)
Last edited by carlsoti; Mar 04, 2012 at 09:30 PM.


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