This is the first one I have seen that more closely mimics the Avatar Gun-ship in it's functionality. Very nice job, I'm pretty sure that we will be seeing these in real life soon.

WOW, very controllable when it began to rock, it stabilized itself quite quickly! Im very impressed!

Awesome Mr. Kim... I love the blade sound without the gear whining.

A real gem nice to see people thinking outside the box.Thank you for the upload all the best David.

As I can gather it's a major upgrade to stability and maneuverability. It is said that planes are made to fly, and helicopters are made to crash. Helicopters are flown by slowly and gracefully crashing for a long period of time. A bicopter is made like a mountain.

oh wow! awesome job. be great to see it more like that actual design in the future

This is beautiful! Nice craft! Really looks like a Scorpion gunship just crossed a little with modern helicopter body.

Unbelievably stable, and coll looking, too. Well done!

GOOd JOB! these can make a best selling rc product. looks very stable and CAPABLE! I WANT ONE!

I read on the Avatar wiki that the blade guards are there in the movie to allow the aircraft to more afely move through dense bush, a theater of operation consistent with the wars on Earth around the time (and then obviously Pandora).

Exciting model - beat me to it. MIne is only half finished. Of course, unlike a helicopter, this doesn't need anti-torque tail rotor, since the left & right motor & rotor combinations will balance out. Even in Avatar, the machine didn't actually need counter rotating rotors, as this model shows.

The guards help to concentrate the air from the props down towards the ground which provides better lift and stability

Also, getting to a height that would be non detected by the noise it makes but being able to bring home very important data to its programmer. Very cool none the less.

You can see that board working like crazy to keep it stable.

Its a modified MH6 with twin rotors whats the deal.. it deserves a Like for being a AVATAR fan

Thanks, you are right

嗨，很好的工作，伟大的视频。 我看过的最好的复制品到目前为止。

That's awesome!!!!!! Would love to see it with the body made like in the movie to. Great work!!!!!!!

Great job buddy!! Would like to see next step!! Maybe some out door action!

Needs a pitch rate gyro to -/+ pitch tail rotor servo, pointed down to reduce pendulating. A reversable electric motor has too much lag, but is often used on Avatar type models.

avatar graphics remind me of Halo: Reach

You must change title to MH-6 RC with Dual Rotors installed.

Oh-6 with the twin engines.... How genius... I want one.

Looks real smooth!

Nice build, dude!

That's because you're trying to use independent rotor pitch. He's using fixed pitch blades that are mounted on rotatable arms. Up down is achieved by varying the motor rpm and all other directions are achieved by rotating the arms. Tilt both arms forward or back and it flies forwards or backwards. Tilt one forward and one backwards and it will spin.

The active stability control required to fly this model must have been quite tricky there is some debate on the aircraft in the film, some say it has a vectored thrust jet in the tail boom to control fore aft stability like a harrier in hover.

I wish they still made movies with models like this. Watch the movie Battle Of Britain (1969 with Michael Cain) if you want to see some nice, large scale models in action ,getting shot down, blown up.

OK, Love the build. Now let us get involved with putting our smartphones on it and programming its flight path.

You are right except when you mention that it does absolutely nothing, having a solid rim around the props does provide a certain increase in lift capacity to a very low and nearly insignificant level and I actually did not even realize that the guards were below the props.

It's more than "basically a little bird". People do it with 3 or 4 rotors. He's done it with 2. Now that's something.

Nice build! it works great.

Very cool, can't wait for more video from you guys. Keep up the great work

Nice. It's obviously custom, because of the OH-6 body. Nice design

@ 1:52, U SPILLED MA COFFE!

my right ear enjoyed this

All of these "flight physics experts" are suddenly coming out of nowhere.

Looks wicked !!! would love the plans to this ! Great work !!

3 engines? Never heard of that. I think main principle of helicopter safety is that you can ungang the engine and then you can slowly descend in autorotation. With one like this, same, if you have an ability to ungang the engines and tilt back both rotors, you can still descend slowly. And yet, i suppose it doesn't need to be a practical construction, though these duocopters have been a bit of a sci-fi favorite for a while.

its a good proof of concept though, ive seen other models but they use a 3rd motor for stability, good to see the twin engine does actually work though, balance would be tricky

Because you build and show off so many model RC aircraft.

That is amazing!! Excellent work fella :D

MAN! You guys are really close. You just need to fabricate the lower portion to Scorpion Gunship body and I'll buy one!

I have used the analog servo. this servo is mg14( torque 1kg)

Great work! I know this is over 5 years old but the weight distribution seems slightly off. I'd also recommend something a little stronger to mount the rest of the aircraft to the gyro mechanism

GREATE !!! Hi from México.

You are an inspiration.

これはかこいです。Very cool my man very cool. I think you did a great job.

Shouldn't the props be enclosed inside the ducted fan housings? The whole point of having a ducted fan is that the housing interrupts tip vortices and directs all of the thrust downward. If you also widen the upper lip of the housing you'll increase the lateral draw across the top of the rotor to make a larger low pressure zone.

@MrRichman1998 congratulations, you´re on to once more!

Very impressive! Nice copter

Asian is greatest inventor in the planet

i love it.. you did pretty good man... good job

Pretty cool for two rotors. I wonder if there are any thrust benefits to having the blades lower, inside the cowling/faring. In this test, the "circles" don't really seem to serve a purpose other than bump protection. Cool mechanics though. I'm sure we'll see a real full scale version of this in less than 20 years. SciFi leads the way again.

yaw control is provided through differential torque on the rotors

it pitchs the fans in opposite directions for yaw and adds power to one to roll

wow ...awesome...would you please explain how it works//

ESE PAPA DE DIEGO SE PASO DE PERICOTE UN SALUDO DESDE PERÚ

Piece of advice: I would put the battery much higher than it is (under the frame). If possibly I'd put it as high as possible. Currently your centre of gravity is too low, that's why you're having so much 'sea-sawing' back and forth that's difficult to correct.

Socks and Sandals... what a class act.

@MrAlvaroaat No, the Osprey is fundamentally different.

ICHI-Ban! Very stable. Well done.

The scorpion has dual propellers in each wing spinning in opposite directions.

와 완전 잘 만드셨네요!!

Ohh Ohh step back, apparently we have an engineer here.

I was planning to build something like this! I did not know it was already in a movie though... Do you have any decent yaw control with this setup? My idea did involve a tail rotor on a tilt boom, more like a tilt rotor tricopter basically. So i am curious to hear your experiences

brilliant invention

thats freakin awsome :P Now do full scale ;)

and THIS is what I would want to do if I had a degree in aeronautical engineering!

I want one! Great video

Incredibly stable. I wouldn't fly my E-Razor 450 in a room that small. No tail rotor, no Gyro necessary. No Drift. Big improvement on CCPM design. Great Job. What motors, BEC, servos and batteries are you using?

The stability.

Just goes to show how fast ppl advance in technology..

just brilliant.............Peter

How fast is it, in forward flight? I love it. It would be a great concept demonstrator, for a full sized prototype!

Very cool! You should put through production... I will certainly buy it

RC = works Real World = way to heavy, engine stressing on frame, overheating since you would have to use lightweight engines then vamp them up to high revs which also means high failure rates.

What a well balanced twincopter! What control circuit board are you using?

That's a nice homemade did you take the roters from the Ar drone and used some other heli for the body?

ok you got the rotors now just get the rest to look like the one from the movie and you will be in business.

Looks stable..goodjob..😎

does having two small rotors instead of one big one make it more efficient or better in any way?

Very stable flight I still wonder how the craft in Avatar controls fore-aft pitch in the body of the craft I can only assume a jet in the tail or cyclic rotor control like a helicopter as the craft in the movie has twin rotors that counter rotate on each side its amasing how far stability control systems have advanced.

man that is cool... the us military shud take that concept up

we will be seeing this helicopter soon infact we already have as it looks like they just slaped on two rotors on the littlebird helicopter wich is no longer in service. It flies well tho

what is the flight time?

Not quite. Helicopters are very safe when you take into account their ability to go into auto-rotation with loss of power. However, as this bi-copter doesn't have any control over the pitch on the props, if an engine goes, so does it. Bi-copters also have an inherit problem with stability as they tend to go into a pendulum motion in the air, as seen in the video, perhaps putting on a bigger horizontal stabiliser would fix the problem. As for maneuverability, watch?v=C2m451SbvhE.

Very cool and great quality video. Would adding a tail rotor help with the steering?

How long it can fly? Is it on batteries? What kind? Cool toy!

Anything that relies on thrust symmetry to fly scares the bejeeesus outa me!,,,Very nice aircraft though!

Wow finally i found one that works

Wow great job

excellent work

Avatar haha .. Original, very good job !!!!! It's amazing & very interesting ... CONGRATS! Your channel is a true gift also with great vids! Oh that's just a little note : it seems that your "Avatar Scorpion Gunship RC -- twincopter" lacks a bit of fluidity.. ease, stability. A bit like bumblebee in flight ... But I like very much this video !! :) Keep up the good work !

Great Job!

q bueno te felicito!!!!

Well Done! 10/10

thanx, i have found that my i86 control board wont allow independent rotor-pitch in twin copter mode,so i have gone to a single shaft motor to motor ,now its better my yaw ive found is done by one motor speeding up slightly during fwd or back elevator ,thus pushing her around,its kinda weird but it works,not a bad board for 20 bucks..

Another interesting idea.4or 6 channel?

hi. i'm really impressed with your project. i'm hoping i could make my own remote controlled machine someday. i have zero knowledge in r.c. and a little bit of programming. can you give me some advice on which book i should read to learn. thanks!