RC Avatar-like twin rotor heli from flite test

 

What do you think about that? It is similar in concept with the helicopters from the movie Avatar, it uses differential thrust and independent tilt for each rotor. It doesn't look very stable but this looks like a very primitive prototype. Maybe it has the potential for something quite cool.

Views: 6203

Comment by Greg Fletcher on November 14, 2011 at 6:43pm

In the movie, the fuse stayed horizontal and the fans tilted, as you would want. In reality, torque canceled out but was very stable as two opposite forces. This would have required cyclic pitch control, witch we don't have. If it's going to be a pendulum the it needs to be one, not as a negative. Not enough hang glider like, witch was its only hope, to overcome the counter-torque stability. Failure it is.

Comment by James on November 15, 2011 at 3:42am

It still looks cool though.

 

Face it, it would be fun to take out to the park on a still day.

Comment by Rob_Lefebvre on November 15, 2011 at 7:25am

Not sure if you're aware, abut a guy on RCGroups builds these twin rotor machines and they actually fly quite well. There's some complicated physics going on.

 

http://www.rcgroups.com/forums/showthread.php?t=1238357&highlig...


100KM
Comment by u4eake on November 15, 2011 at 11:32am

I'm not sure if it's the copter that's unstable, or the thumbs that are unable...

Anyway, the look on the dude's face is priceless when the Joshes trash his gunship.  Feel sorry for him though.

Comment by Sebastian Gralla on November 15, 2011 at 11:43am

@ robert: not more complicated than in a normal helicopter or quad ;)

Comment by Cre8it on November 15, 2011 at 1:22pm

Does anyone have the link for the software they were using?

Comment by Cliff-E on November 15, 2011 at 1:23pm

http://www.youtube.com/watch?v=rK61Q0crRGo

 

Using a KK. Just add some window dressing and should look just as good and can fly fairly well.


Moderator
Comment by Mark Harrison on November 15, 2011 at 4:42pm

What I really want is an easy way to make some good blade guards! I wonder if these are mainly cosmetic?

Comment by CyborgCNC on November 15, 2011 at 5:15pm

check this out:

 

http://www.kkmulticopter.kr/index.html?modea=vieweng&mc_selecte...

 

Same board, much more stable...has been done already.... :-)

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