Enough "lift" for helicopter flight

[CP5670]

I don't believe it actually flies either. It does seem to be too stable for something that heavy. The propellors are also powered by a Lego geartrain from motors in the fuselage, and there is no way the Lego axles and gears would take that kind of strain if they were spinning fast enough for it to fly. Still an excellent model though, and a well made video as well.

[dikkie klijn]

Besides the propellers turn in the same direction. This should make the flight unbalanced. But its still a good model .

[Lasse D]

I've seen this thing in real, while I was at my "Lego-Dealer." A friend of him built this awesome thing.

The rotors are non-LEGO parts. The rest is made with Lego.

(...)

And yes, it is hanged up with a string, but only for "controlling" the flight.

Max

And by "controlling" you mean: "Supporting its full weight and provide lift". In other words. He has built a ceiling plane.

[Sokratesz]

And by "controlling" you mean: "Supporting its full weight and provide lift". In other words. He has built a ceiling plane.

Did you expect anything else? The minute someone builds a real plane using LEGO parts it'll be all over the place.

- Sok.

[TechnicJuan]

Is someone trying to say that this is legitimately lifting off of the ground by itself? Impossible. Also, what it that thing spinning around near the top of the video when this plane is flying in circles?

Edited October 7, 2011 by TechnicJuan

[Finntech]

There was another vid also:

But everyone seems to have a consensus that it's fake. Maybe so but as some have mention, it is still a great model.

[TechnicJuan]

That second video makes the liftoff and landing prove that it is fake. At the 1:17 mark the engines cutout and look how softly it lands. It should have come down much harder but they seemed to lower it down easily.

I guess it is a good model even though it is a mixture of Lego and non Lego elements. Which brings me to my next question, is using outside elements acceptable for reaching the goal of getting Lego to liftoff?

[Finntech]

That second video makes the liftoff and landing prove that it is fake. At the 1:17 mark the engines cutout and look how softly it lands. It should have come down much harder but they seemed to lower it down easily.

Yes, I noticed that too. After the engines are stopped it "floats" a second or so.

Edited October 7, 2011 by Finntech

[Lasse D]

Did you expect anything else? The minute someone builds a real plane using LEGO parts it'll be all over the place.

- Sok.

I'm expecting that people are a bit more honest about calling the ceiling planes what they are: models suspended in strings with motors to make them go in circles. The second video even shows the setup with the string and board, but it still claims to be "the first real flying LEGO...".

In other words. Not what OP was asking for.

[RohanBeckett]

You guys are kidding right?

click through to the youtube page itself.. change video res to 1080p.. full screen it... you can SEE the fishing-line holding it up!!

quite clear, around the 20second mark...

It's a neat model for sure.. but definitely not flying, or controlling by itself!

RB

[Finntech]

Damn I missed that part it was just few seconds from the end... Fake it is.

But I still believe... 0:59 ->

Edited October 7, 2011 by Finntech

[Meatman]

They are claiming that it can "Lift Off" but they are also saying that is does use a string to control the flight, but they are obviously pulling the fishing line to get it to "Lift Off" Deception.

Paul also brought up and excellent point in there being no flexing at the wings.

[mx2000]

Is someone trying to say that this is legitimately lifting off of the ground by itself? Impossible. Also, what it that thing spinning around near the top of the video when this plane is flying in circles?

The counterweight?

Clearly, this thing is suspended on a string. There's no wing flex, and its way too stable in the air.

You can also see it when it tilts the propellers 45° forward mid-flight: Depending on how much power it has, it should either go forward real fast or go down real fast.

[Horry]

This thread riveted me and so I am doing my first post in the Technic-sub-forum although I thought I'd never do that due to a total lack of Lego-Technic-skills... well done, folks

Might be able to do it, if the only Lego component was the propeller. :-)

This idea intrigued me. I am sure that people have already tried this but I wanted to make my own experiments - so far it turned out to make a good fan but did not show any sign of movement. A hull that is stable enough to withstand the tractive force of the rubber band necessary to make any difference also makes it too heavy and bulky. I have ordered some new technic-parts now (first ever since I was a boy) and will do some more fun-experiments with that.

On a sidenode:

combining this with this without fixing the propeller to the motor makes a fine flying rotor blade flying for some good meters in a fine, stable manner

[allanp]

I've loosley attached the same propeller to a 9v ungeared motor with a 3:1 up gearing and from the floor the propeller would just skim the ceiling, and it's surprising how stable it is.

Edited October 9, 2011 by allanp

[DLuders]

As mentioned on Parda's Technic Delicatessen, Anika Vuurzoon made this

of a flying Lego rotor. She wrote,

"Do you think it's impossible to make Lego fly? Then you have to watch my "Flying lego"! Without the use of any non-Lego parts I lift Lego up to 5 meters into the air. Enjoy your flight! More info on: http://www.mocpages.com/home.php/16939 .

Warning: If you want to make something like this too. Make sure you take enough space and protect yourself and others.

Bye bye,

Anika Vuurzoon"

Edited October 9, 2011 by DLuders

[Sokratesz]

As mentioned on Parda's Technic Delicatessen, Anika Vuurzoon made this

of a flying Lego rotor. She wrote,

"Do you think it's impossible to make Lego fly? Then you have to watch my "Flying lego"! Without the use of any non-Lego parts I lift Lego up to 5 meters into the air. Enjoy your flight! More info on: http://www.mocpages.com/home.php/16939 .

Warning: If you want to make something like this too. Make sure you take enough space and protect yourself and others.

Bye bye,

Anika Vuurzoon"

That is win. And not because of the chick, she has pointy elbows.

- Sok.

[Alasdair Ryan]

Em i had to watch this video twice once for the girl and another for 'thing'

Any one else see that it uses a rip cord i wonder if any one suggested that here all ready?

[allanp]

Yeah, "somebody" mentioned a ripcord somehow in reply to my highly intersting post as of which no-one seems to have been able to get to the end of said post without falling asleep

And you know it's funny, every post since that video has somebody commenting that she is in fact a lady, probably why they don't post here that often

She does look fit tho!

Edited October 10, 2011 by allanp

[trekman]

As mentioned on Parda's Technic Delicatessen, Anika Vuurzoon made this

of a flying Lego rotor. She wrote,

"Do you think it's impossible to make Lego fly? Then you have to watch my "Flying lego"! Without the use of any non-Lego parts I lift Lego up to 5 meters into the air. Enjoy your flight! More info on: http://www.mocpages.com/home.php/16939 .

Warning: If you want to make something like this too. Make sure you take enough space and protect yourself and others.

Bye bye,

Anika Vuurzoon"

I think its great that someone has been able to get lego to fly, in a helicoper style.

Taking the rip cord idea to a new level: We have an old Evel Knievel Motorbike and Winder at home.

When you mount the bike and wind it up like mad, the flywheel in the bike stores up the energy. When you stop winding, then the bike and poor old saddle worn Evel, is released at break neck speed up the hall carpet.

In a similar way, Do you think a motor(s) could be brought to such a speed, that when a brake is applied, the energy forces the helicopter blades to take off, leaving you holding the base unit?

Basically a motorised version of a rip cord.

[Sokratesz]

That might be possible although cranking or yanking something with your arm probably generates awhole lot more power and the helo thing is all about speed not sustained rotation.

Flywheel in a vehicle sounds more likely as it can carry much more weight.

- Sok.

[TBS]

Is someone trying to say that this is legitimately lifting off of the ground by itself? Impossible. Also, what it that thing spinning around near the top of the video when this plane is flying in circles?

Hi Juan,

have a little trust.

It really lifts of. Its not impossible.

The "spinning around thing" is the counterweight.

Of course the plane can´t fly by itself in each direction nor can it be steered straight, left and right like a real one.

How do you expect to overcome aerodynamic wings, weight, etc, with technic beams and so on.? Come on. There is also no Lego Rotor usable for this which has enough "pressure".

Actually it is to be seen as a diversuit.

You have the airtanks which lift you up and your other weight which dimishes this effect.

In order to get "zero gravitiy" underwater you may need counterweights (lead blocks), which equals the balance to zero.

This is exactly what you see here. The plane is almost exactly balanced,

so it really lifts off. The rotors just don´t have to overcome

the weight which was 1.5 - 2 kilogram. (I was the cameraman of some of the videos)

Soft lifting and landing is possible, as to be seen some times.

Of course the plane can´t fly to other places like your neighborhood,

but it does as far the rope let it go. The faster it went, the higher it came.

So for everyone NOT expecting to have a fully functional A-380 in Lego,

the plane is really flying. ;-)

See minute 2 to get the idea.

Tom

aka tomsbrickstore.de

Edited October 15, 2011 by TBS

[TechnicJuan]

Ok.......... Minute 2 shows it flying in circles with the above attached device that keeps it in place but you left out the liftoff part in that piece of unveiled video that would have proven your liftoff claim. What about at the 1:20 mark when the engines cut out and it seems to float to the ground? When the engines began to cut off one would think that it should have fell like a rock. There have been several other points made about how the liftoff looks "staged" the wings showing no signs of flex is another key that seems to go unexplained.

[Sokratesz]

I'm not sure what you are trying to do, but it's not flying, in fact its not even close, so stop pretending. The only thing it does is move itself through air while suspended on a wire.

- Sok.

Edited October 15, 2011 by Sokratesz

[Lasse D]

Can someone please ask those guys in German if they claim that this model lifts itself and would be able to do so without the string which clearly has to be used to lift it?

I can't really tell if trolling or what the purpose is. Right now I'm giving them the benefit of the doubt by asserting that they do not fully understand what the terms mean in English.