Quad Cyclocopter Demo 

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They could be angled to redirect air into the blades when moving forward but it'd introduce more drag

wonder if more is better or worse as for the standard blade tought i noticed every ducted have a bunch

Agree. Lots of vibration. Probably a nightmare to balance everything.

It's cool, but just because it's difficult doesn't mean that its worth pursuing. Nice concept with no advantages. The "RU-vid experts" are correct on this one. ✅

​@@hvip4 I mentioned nothing about being correct, but we all know that even professional experts are never wrong. I know... I know... starving penguins at the south pole could have eaten this device and saved them from extinction but even failed experiments can lead to new discoveries.

KISS

​@@hvip4 No. They aren't. You would've known why if you've ever tried to build anything from scratch. It's not stable objectively but it's actually incredibly stable for an experimental design. And it's incredible how big conclusions people can wrongly make out of literally nothing.

Why do you consider them to be inefficient? I understand they’re more efficient than a helicopter

@@Pudelspringer They are not more efficient than a helicopter. The lifting surface vs mass is is less so higher RPM must be used to compensate. This is what helicopters call "disk loading" basically a larger slower rotor is more efficient than a smaller higher speed one. Also the mechanics are far more complex than the cyclic and collective pitch mixing system on a helicopter rotor and that's already pretty complex. At full scale it would be a maintenance nightmare. They get more efficient at lower speeds in a thicker fluid (water) which is why they are widely used in tugboat propulsion. Also the 360 degree instant thrust vectoring trumps the extra cost and maintenance compared to cheaper azimuth pods in that specific application which is why you only ever see them used in tugs and other boats that need to be able to thrust in various directions just use azimuth pods (an electric propeller in a rotating pod under the boat connected to power by slip rings).

@@atomicskull6405 Can you share any details on why you state the efficiency of a Cyclocopter is less than a helicopter? I’d like to understand this concept much better. I would have thought the entire wing is lifting at high efficiency would outperform the low lift from the helicopter wing near the hub

​@@Pudelspringerthe projected area of a helicopter rotor is much larger. The larger the area, the more mass of air you have to push against. The more mass you can push against, the less you have to accelerate it. The less you accelerate the air, the less energy is wasted. To stay in the air you want to grab onto as much air as you can.

@@zachary3777 . Thanks Zach. But doesn’t the helicopter wing only generate maximum lift at the wing tips and nil at the hub? Whereas the Cyclocopter is generates lift along the entire wing as each wing is at the top & bottom of the cycle. More wings = more lift?

A Darwin award...

the less moving parts, the less parts will be broken, at the same time

more like a traditional quad copter, self-ducted impeller thrusters

radial ducted blower fans are better, just one moving part, the rotor, not the wings, centrifugal operation, not wing operation

Every one keeps joking but not you, true words have been spoken

Yep, especially just for children!

"Real" rotorcraft don't vary their rotational speed to control thrust. Small quadcopters can get away with it but basically every other configuration gets up to ideal speed and sits there. Helicopters are controlled with blade pitch, the same way this thing is.

Hell yeah it can!

But undeniably more successful

TODAY:2:40 PM

Yes and problem when.

Особенно мягкая посадка....