Bladeless Drone: First Flight
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- Опубликовано: 27 сен 2024
- With 4 ducted fans, and some carbon fiber, I built a bladeless drone that I think is one of safest in the world. It uses 4, 90mm ducted fan propulsion units buried deep inside what I call a “bent tube” propulsor. The fifth “leg” is a parachute can. Hopefully I will never need it. With some help from my dad, we built the entire airframe primarily out of carbon fiber and some balsa wood. I bought all the electronics on line and was able to design the drone so that it would operate with a standard DJI multi rotor flight controller even though it doesn’t have vertically oriented propellers. With its top mesh installed its virtually impossible to get fingers and objects in contact with the blades. I submitted a patent application, and it has been granted, patent #: 11,104,432. I think a drone like this could have industrial applications where a drone needs to operate close to people, objects, and in confined spaces to do inspection and other activities.
/ stefano-rivellini-8a31...
![DDG & G Herbo - Nosey [Official Video]](http://i.ytimg.com/vi/I9Ra0Zc2NlQ/mqdefault.jpg)
That design could be an option for residential deliveries in a near future delivery service ...
thought exactly the same thing and your comment is from 13 min ago :D. Sell to Bezos
Yeh, just have to make them broom and bullet proof
Or just a good pilot that can avoid drone catchers
Ducted fans are extremely loud and extremely inefficient, the noise pollution would render it a disturbance and the range would be very limited due to the poor thrust to weight ratio achieved by the ducted fans. Thus this design shall not see use in package delivery. however it is a facinating experimental design
I wanted to refer to the idea of having the drone propellers spinning inside a protective liner like some helicopters tail rotor. I don't know anyone who hasn't cut their fingers on the current design
Cool idea, I love the sound it makes. But there are a few issues.
- The fans you're using are designed for high airflow, not high pressure. Having long tubes, AND sharp corners will limit airflow and increase pressure and therefore reduce your performance and efficiency. I would not be surprised at all if you found you're only producing half the rated airflow.
- Generally, ducted fans are specifically designed to be used in an open environment, any custom ductwork added will reduce performance & efficiency.
- Mounting motors horizontally instead of vertically means that you can not leverage the effect of the motors torque to rotate/yaw the aircraft
If the goal is to simply reduce incursions into the props, simply adding a wire mesh guard around the props would be significantly cheaper and lighter.
If you mount those ducted fans all vertically, and add mesh you can reduce the size of the aircraft by a huge margin, increase the flight time, performance, and handling.
Thanks Matthew. People should be smart enough to learn from the way you criticize and share your ideas
Yeah very informative. Love fly my drones, I get a real kick out of it. Unfortunately not good with electronics, so when they malfunction does my head in.
funny to see people commenting and giving all their "advise" while they never even accompliced something like this by themselves. I would say build the perfect one yourself and then you have something to say.
@@12vibaba I think giving advice is valuable nonetheless. At least in my case, I work with this stuff as a career.
As a professor in IT and Engineering, for me It is very enjoyable to see young people using their creativity to develop new and revolutionary ideas! Congratulation!!! (Y)
;;☆》♡♡♡.... i worked for a Boeing subsidiary for a while, then Raytheon, as lead programmer for the Engineering division in Colorado.... It's so much fun... I would have paid them for the opportunity to play with Boeing's fabrication of light weight composite materials.... prior to that I was an exotic car technician, working on Jaguars for my apprenticeship and Alfa Romeo and BMW before the yuppies found them... I build stuff... for other people.... I am autodidactic ... I program in 8 languages and work with Microsoft software... when I find people who are self motivated.... I latch on.... because they are our future
Want to know the best way to create your future? ==>> turn off your television ==>> please 🙏
It's not accurate information.... it's propaganda and brainwashing that teaches one thing and one thing only ==>> how to be a passive observer
Turn it off... you really DON'T need it
The solution appears to be much safer. If you work out how to increase the power, minimise the noise level and reduce the power consumption, one day, it may start bringing you some good money. As for now, it is a leaf blower on steroids.
Sikorsky? The helicopter guy?
So increase the power and decrease the power at the same time. Makes sense.
Never seen a leaf blower that can fly and hover.
Great job Stefano. Your tether tests are incredibly similar to how NASA is testing next generation landers.
hi
Whoa
Opal stone, i like how aussie develope something
Yep - I work at JSC and see them test the Morpheus all the time same way.
@@shellyoung2646 lol.. that escalated quickly. Less caffeine... maybe.
Nice work! Super impressive.
true
I am over 50 and been an engineer most of my life. Don't pay attention to the negative comments on here written by 14 yo's because it doesn't work and look like their 29.00 Walmart drone they got for Christmas. This was a true achievement in thinking outside the box and designing and building something that actually works. Most people that have idea like this never get them off paper and if they do, they never actually get a working prototype. Thomas Edison built and tested over 3000 prototypes of the electric bulb before he got it right and now look what it is today. Keep up with your good work. You may have something that is very valuable someday to all of society or even the future of mankind.
Except it, please explain how it can Yaw, and I'm over 50 too and build dozens of drones.
Please explain to me, technically, how this drone can YAW, given that the motors are laying on their side? If the tubes could vector that would be a way to YAW. This design is great, it's really innovative, but it has a massive design flaw.
@@MakatiSuites I believe it is in the offset of the outlets, note that they are at a slight angle, so that one side has the ducts facing each other just a little bit and the opposite side the same. By adjusting motor speed to one set of ducts that are angled in same direction more than the others it will yaw. Cool!
Right on Bob Green, I too am a product designer and mechanical engineer and am over 50. Glad to see anyone making something themselves, especially as challenging as this! lots of great fabrication done himself, so screw the naysayers!
Are you sure Edison really did much own testing with the light bulbs?
As far as I've heard he mostly ripped other people off who did that for him (or before him).
And what it is today (or was) is a gigantic scam, btw.
But of course you're right about the achievement in this video!
Fun Fact: This drone actually has blades, just that they're inside
Yes, ofc...
Afterall anti gravity isn't discovered yet
Thank you Mr. Obvious
I wished it truly had no blades and it would be controlled by air pumps
@@treeinafield5022 u must say that to the video title
@@chabhishek3282 technically ion propulsion is possible, but I guess it's not mass manufactured enough to actually be useable on drones yet.
You could drastically make this design more efficient!
* Have 1 motor with opposite spinning blades like the russian Kamov KA-50 - save weight.
* Duct the Air via servo controlled ports for balancing and speed - save weight.
* Longer flight time with a RC model petrol engine - save weight to power ratio.
* Work on the CFD of those tubes so the airflow is better It didn't look optimal.
* Make the nozzles like Dysons or a Hovercraft with a narrow slit in them, this raises the static pressure from the nozzle outlets and thus lift force.
Single motor with ports same tging i was thinking
With a single engine you'll need a larger blade - just like a helicopter.
And a stupidly simple change: let the thrust come from above the centre of mass, not below. Should make it vastly more controllable.
Simple problem, simple solution. Damn good work! Innovators like you are the future of humanity. Keep it up!
Simple solution? Come on...
@@brendandsouza5331 Of course it is! I would simply put a tube around the blades and cover an inlet and outlet with a mesh and it would give the same result. No need to act like it needs to be a "hi-tech" solution to this simple problem! But well... it wouldn't make so many views, would it?
Now imagine this:
1) One large intake, one engine.
2) Three distribution ducts that are able to turn 180° each.
3) Three output cones that can regulate its own diameter in order to change output pressure.
4) An arduino board to control them all, and it darkness bind them in the land of Mordor where the shadows lie.
Almost exactly what I was going to say, almost.
Having one central motor will cause the multicopter to spin in its use axis as a result of the motor’s torque. A drone’s yaw axis is controlled by increasing the throttle for two motors spinning the same direction and lowering the throttle for two others spinning the other direction. Thereby increasing the moment force for one direction. Helicopters are an easy example of only having one motor. If something happens to the back rotor, theres a dramatic spin out and crash
@@kennyt930 the output of the ducts can be used to offset the rotation of the fan.
I think "bladeless" drones are the future of drone delivery and drone medical assistance, cuz it prevents idiots from getting injured by the blades and possibly suing the companies.
Exactly.... Mente
SO MANY HARSH COMMENT....
but you don't all listen to the intention of the design and engineering.
Good work bro! Keep inventing...
Agreed! He needs to continue and keep on keepin on! This dude is one intelligent beast! Props on the homemade carbon works!!!
Damn dude! Impressive work!
the Hacksmith hi
more like impressive fake
@@seashellfishtrading8884 Well he is actually Hacksmith
If those motors drew 120 amps, they would have car starter motor size wiring, and be as big and heavy as a V8 starter motor.
From someone whos been building FPS drones for years, this is a really cool build man. I hope this inspires you to build more awesome builds, we need fresh minds like yours to build the future.
I gave a positive comment before I clicked to see Stefano's other videos or read the comments. There were no follow-up videos and after reading some of the comments, outside my DARPA joke, I can see why. Wow internet. This teenager spent a year, pouring what was clearly A LOT of ingenuity, passion, effort, skill, and time into creating something never, or at a minimum, scarcely, seen before. But instead of seeing a flood of comments congratulating and encouraging this young man for his accomplishment, I see a horde of negative, petty comments, attacking him for such nonsense as the semantics of "bladeless" (thus apparently this is clickbait!!??), the noise factor (on a proof of concept demo!!??), to the "gay music" used in the background. Essentially, and unfortunately, the problem is that RUclips is replete with people who are simply toxic. I swear, a video of God, manifesting into physical form, then delivering to humankind the meaning of life, physics, existence, and the path to eternal happiness and bliss, would be followed by a series of disgruntled comments and 10% dislikes. Good luck, Mr. Rivellini. You are a unique individual and I hope you are knocking it out of the park in school. I Hope DARPA lets you post some follow-up videos of the unclassified stuff you're working on next!
Stefano - This is an awesome and amazing accomplishment!! Congratulations for doing something special. I don't think most people can even realize the magnitude of your innovation. You will get a lot of jealous haters because you are making great progress. Expect it... use it to drive you forward, confirming you are on a path to doing something spectacular!!!
This is actually an innovation like no other. He solved a problem of crossing a dangerous mode of transport into and incredibly safe one. If you built this design much larger so a person could ride it, it would basicly be a flying car.
Now you just have to focus on increasing power because of the covers and then from there make it hearing safe when you sit on it- Honestly I dont think this is the answer for flying vehicles.
Efficiency would be an issue. Basically you are pushing the air through a pipe which will cause massive head loss (loss of force). Another issue with a quadcopter design is that in the case of an engine failure it cannot autorotate and land safely like a helicopter can. If one of the four motors/engines dies it would be game over.
@@Rex-sy8ye yeah i know what you mean. But they have some 1 man "drones" and yes the same problem applys, but what i mean ultimately is that the idea of internerlizing the blades or jets is a geinus Idea. It stops a big problem of not only danger but direction.
Holy crap. That is one of the most impressive efforts that i've seen in a while. Awesome. Patents? Should. Great.
Stefano, first and foremost, congratulations on your project. While I haven’t flown my RC helicopters or drones for sometime, I can assure you they can be dangerous, and require utmost respect whilst flying them. For the rest of you that complain that this drone is not truly blade-less, I suggest you have a look at some of the RC helicopter and drone forums in the “Accidents” section. There you will find picture of operators who have met up with the exposed blades of their RC craft. Trust me, there are some gory pictures to see, not to mention, learn from. BTW, one of the main reasons I gave up RC helicopters was the fact that within a 3 week period, two people were killed by their RC helicopters. Yes. Really. So, again, congratulations on making this a safer hobby! Much respect!
No blade-less, thanks a lot. Compresors uses blades to generate airflow, but they are hide into a box. Good video.
Safety is no.1, there is nothing out there to compare to this well done and good luck for the future!
Quick! Get the patent on the first autonomous leaf blower! ; )
I took the blades off my drone and now mine is bladeless too
who know maybe this is the future of every drone, good job mate !
no, it adds unnecessary weight. just cover the intakes
@@midgetman4206 I'm not saying this version of drone is the best one, but for sure this add variety to the drone design, this version also more durable to weather i believe, but on the other hand it consume more of power and lack of stability due to unnecessary turbulance
No matter what anyone says... youre a thinker and i hope karma is real to those nay sayers, good job kid... keep that mind open.
I'm telling you, this young kid have a nice future.... I don't think it will fit for commercial drones market.... but I see a much bigger fit on aircraft new technology.
@@noteden3446 ur a piece of shit
This is NOT safer if you have a fear of being attacked by a flying octopus.
Lol
Lol 😂
Wow that's innovation you need to patent it. There will be positive reviews and negative comments as well but u know better than let those things affect you. Keep your brilliant mind buzzing with those ideas and I wish you the best.
Thats not an innovation, its not even something that you could get a design patent on.
Awesome work - but please, wear a respirator when cutting carbon fiber!! Those particles are really, REALLY bad for your lungs.
Yes carbon fiber particles in the lungs act just like asbestos causes lung cancer later on
Looks like this is coming up in everyone’s recommend😂😂
Lmao tru
It did in mine😂😂
@@fox25_fpv19 😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂
The efficiency must be pretty bad as the turbulence in those bent tubes is really intense. If you just mounted ducted fans in the corners extending the duct long enough to keep fingers out you would get safety with much more efficiency. or you could just put a wire mesh over a standard ducted fan intake and exhaust.
Pure Genius. Bravo to you on this invention. Now file a patent ASAP!!!
I’m curious how much force is lost by making the ducted air take two 90 degree turns before exiting the vent
A huge amount on a good day. A better design would have had the bladed fans in a straight pipe only long enough to ensure you can't get nailed by the fans.
@@strictnonconformist7369 I love that all the weight is centralized though.... I have a vintage alfa with a rear transaxle.... it wastes a huge amount of power from the engine but balances the car 50/50 so it handles amazing.... so there are tradeoffs.
Almost zero. There is a lot of energy wasted by sending the air through the ducts, but not so much the bends. Also, EDFs aren't known for their efficiency. Still a very cool design though.
@@shawnhollahan590 there are always tradeoffs.
As to the previous comment by another poster about amount of energy lost as a result of 2 90 degree turns, I’d love to see that measured and verified, having had a certain amount of formal training in hydraulics and pneumatics for robotics/automation purposes.
The higher the pressures involved, the farther away from zero energy lost it becomes: this is how and why Tesla turbines work, because boundary layers of air have a very measurable amount of viscosity and air hates to change directions to flow against it. 2 90 degree turns creates air boundaries out of airflows, above and beyond the walls. This is why hydraulic and pneumatic circuits try to minimize the number of bends required, including ordinary plumbing, because you lose head that way.
Stefano tested that and found NO reduction in thrust.
RC hobbyist , aeronautical engineer here.
This is a really fantasic project. Thumbs up for effort. However this design wont be really useful yet in the market due to the inefficiency of ducted fans. High air velocity with lower mass flow is only meant for " fighter jets" . The air exit velocity of the ducted fan can be above 80km/h while what you really need is just 20km/h or less but with alot of air mass flowing through like a giant prop for efficiency.
So like some of the comments below say. Build one giant ducted fan and split them into 4 tubes. Like a harrier. The engineering portion is up to your creativity!
Tip: Add a nozzle to the ducted fan to turn it into a compressor which provides more thrust. Propellers aren't designed to produce thrust, they're built to "pull" the aircraft through the air using lift, while ducted fans (model jet engines) are built for air flow. Air flow + nozzle = compression, and thrust.
Added bonus is that you can gimbal the nozzles for thrust vectoring.
Great work.... really impressed..... one suggestion...(up to you weather you gonna heed the advice) Use a down draft table and a dust mask when cutting trimming sanding any artificial man made material (Plastic, fiberglass, carbonfiber, kevlar, etc.) ... fibrosis is usually the illness suffered by people working with artificial materials.... particles don't break down and usually in-bed themselves into the lung tissue..... think about it..... 1000 years from now you and I and many of our future generations would long be gone and that material is going to stay there..... Just a friendly advice.... and also it helps if you use respirator when you do your resin mixing.... those fumes are not the best either.... lol.... Stay safe....
Ducted fans seem cool, idk about their thrust:diameter ratio but I'm sure it's good, however their overall thrust:cost ratio seems very high. I've always wondered if adding multiple turbine blades/ducted props to the same motor would work better? Of course it would come at a cost to efficiency but so do coaxial propellers, though most importantly they are great for saving space.
This guy seems to be doing it right, props to him and his dad! Putting a patent in, using this as a project for his degree, this guy's going to go far!
You could’ve just put safety mesh on the ducted fans and had the same protection.
Now you have a much heavier solution that will tank your efficiency. Not to mention the added weight can hurt someone in a different manner than a bladed drone.
Not necessarily, the inner part of a fan provides very little thrust so they end up large and cumbersome. Having a single high speed turbine with ducting could be provide more stability and a weight saving. Overall the whole thing could be smaller and more efficient. Large scale is probably not good but smaller sized machines could be workable.
Jake S I originally thought of a central centrifugal compressor that had 4 outlets and intake air directly above.
But then you’d need some way to control thrust at every outlet.
Utilizing several motors allows for instant torque changes and better control.
The excessive ducting adds weight unnecessarily and drops efficiency.
Great first concept! This can really take off and be something as long as you have the brains and balls to keep redesigning and innovating. Keep it up and do listen to the negative comments. Use them as fuel or for ideas
And here's another video everyone suddenly got recommended. It's still cool though.
This is a great start. Well done. Solve the noise issue and I'm on board. The lack of comments that mention noise leads me to believe there is quite a bit of knee jerk enthusiasm and acceptence.
the noise is my first thought/comment. I'm not the biggest fan of technology like this but I do keep up.
Fantastic work! Great result too with a safer quadflyer.
Note: When cutting and sanding carbon fiber it's a really good idea to wear a filter mask. Bits of carbon fiber can have really nasty long-term effects when inhaled.
"But it still has blades...."
Ah yes, if we listen closely we can hear the squawking of people who don't actually have the creativity and skills to build something like this themselves. So instead they take pride in calling out errors of terminology. Some people live pretty sad lives I guess.
Great job mate, definitely a market for something like this if it can be further miniaturized. Keep working on your design!
energy efficieny (read: battery life) will make this useless in practise - while simple propellerguards will cover the "safety aspect" to a sufficent degree on a more energy efficient drone. (also, dont fly drones in living beeings faces - that helps a lot with "safety")
the idea of such jets is not new (harrier jets i.e.) - but he has put real effort into building, and he has a clever way of testing his construction
so i must say well done.
Wow. Great build. Using CFD software, carbon fiber structure, safety focused. This is awesome. You're a man with a bright future.
Awesome... Half way to the discovery of the Harrier Jet Aircraft
ruclips.net/video/ejr58T3wZD8/видео.html
How right you are ....
Neat! My first thought was flight time. Not to crap on your success but I would assume that the efficiency is pretty bad. The ducting and the fact that the air has to make 2 90 degree turns has got to add a lot of turbulence to the airflow, whereas a normal quad's air path is straight through the props. Second thought was "how the hell does he control the yaw" but I figured it out. The slight angular offset in the ducting would allow the controller to control it the same as a normal quad. Really neat how the thrust offset has the same effect as the rotational mass of the props! Awesome project man!
Hope you patented it a year ago when it was only an idea... ;)
This has a great future in the leaf blowing industry :-)
why is everyone suddenly being reccomended this just now?
a overview of popular key words and or propaganda to push agendas
but it does look like a awesome but if kit.
The amount of power that uses is insane. Awesome though
And you have only begun. Can't wait to see your evolution on this.
That high pitch squeal will give you noise induced hearing loss.
Need to make the duct exits sawtooth shaped to reduce the noise.
Look at Boeing 787 GEnx engine nacelle or the article on noise suppression by Purdue School of Aeronautics to see what I mean.
So thats why they do that. Always wondered about those thanks
You should add a grid at the top to avoid small flying animal to be sucked in.
we call them birds
it still has blades , its a electric jetdrone
No blades that could hurt someone or damage something, that's the whole point.
thet caughtup light straight fakers
@@DerEchteBold it can still fall and hit people in the head and cut it open without blades
@@marcussalomonsson2986
Oh really?!?
How horrible!
btw, read the description
DERECHTEBOLD!!! Maybe the blades cant hurt anyone.. But it doesnt say concealed blades.. It says BLADELESS!! Which is bullshi
There is no such thing as a "bladeless drone".... its a quadcopter with DUCTED FANS... keyword being FANS- it still has blades.
RedRyder it’s just an expression for saying no exposed blades - don’t be so pedantic
I bet you're loads of fun at parties.
I randomly had this exact same idea, got excited, then realized it already existed. Lol.
All the negative comments... I give the kid respect for using his imagination and trying to do something better with safety in mind.
Fact is. He is on to something. Everyone hating on him. Yet. Where is your designs?
you don't need to know how to fly a helicopter to know the guy in the tree fucked up
You should probably be using a respirator when working with the carbon fiber and epoxy
Fancy tube work, but the added weight and redirecting airflows through two 90 degree turns decreases overall efficiency. Instead, why not just make a shorter straight tube that protects your hands and such? Wouldn't look as fancy but from an engineering perspective, it would be more efficient and thus increase your flight time. There is at least one benefit with your current design and that is that added benefit of torque while maintaining the Cg close to the vertical center line.
Pretty sure its NOT bladeless 😉
Oh yeah it should be inside the holes!
I just started watching the video so that's why I said that 🤦🏻
GREAT WORK MAN!!👌💯👍 Amazing design and build, one of the best I've seen, period.
Great concept and awesome implementation!! Of course it had to be carbon fibre to keep the weight down, but man, you've done an outstanding job with all the fabrication!!
Wow. This is amazing 👏🙌 bravo. The noise reduction is absolutely incredible. This kid is going places.
after two months youtube decided to put this in our recommendations 😂
You should really wear a full respirator when cutting / drilling carbon fiber, the dust is really bad for your lungs
fiber glass is worst
Nah he is a genius don't you see?
After all he put a duct around a fan and called it bladeless!
Right now, a man in China is preparing to sell these on Amazon. Patents be damned.
this can deliver more power than the normal drone thank you for this work!!! I might use it for some of my products!!!
Some parents buy their kids dirt bikes. Some parents think drones are too dangerous.
Small EDFs are inefficient. The weight of the tubing and the airflow resistance inside the bends will make this a lot worse. No wonder you dont mentioned flight times. Are you getting more than 6 minutes? Maybe with a single, central, large fan in the middle and some sort of valves inside the tubes or thrust vectoring nozzles you could make it a lot better. Using a DJI controller is also the silliest idea ever for a DIY project, when there are a bazillion opensource flight controllers out there that are way more configurable, cheaper and overall better. I will give you props for the look of the thing though. It looks really cool.
My thoughts exactly with central power source and valves etc.
@@bonanzabiker straight valves would hurt efficiency too though, it would require some clever engineering to rebalance airflow/thrust across 4 pipes without inducing too much drag, or for that matter, extra weight. You might be better off just using vanes on a single shrouded prop.Plenty of those designs around.
Have you heard of the "coanda" effect? It uses a shaped dome over which the air is blown, it increases the airflow and makes the machine more efficient, have a look for the coanda effect on Google and RUclips, it might be something you could incorporate into a drone design. Fantastic job on this one! Best wishes David Burville
Yeah I was wondering why he didn’t do that like the dyson fans do.
@@lifehackertips - the substantially flared intakes perform a similar function. Dyson 'fans' are expensive and inefficient.
Why wouldn't two screens, above and below the blades, not be a superior design and easier to retrofit to existing designs?
The screens could be made of lightweight, yet strong nylon: fishing line, adding only a few grams to the weight.
Serious question, not meant to be rhetorical or with an unassailable single answer.
Yes, you def have to change the title of this video since there are still blades.
I'm sure this comes with significant inefficiencies but still that's a great idea. This should be better any time someone needs to film a festival or the likes where there are lots of people.
Solution: tethered Balloon Cams
Possibly stupid question, but wouldn't the rotors be more efficient if the rotors were facing straight down and the tube was just downwards? Isn't the air wasting significant force to the side, where the tube bends?
I would be very curious about the power requirement of this vs. the regular drones. It looks like it would be very inefficient.
Well, actually propellers can still use a Bernoulli force together with a reactive force being enclosed in a big tube in a free airflow. And this must be a subject of a patent (alongside with a small angle of exhausting pipes which allow to control a rotation) rather than a harrier-like principle itself. And nobody except China makes drones. China doesn't care about patents. So.. Wasting of money imho which could be used for making a prototype better.
And I have no idea what's wrong with a simple cage around traditional propeller. May be a weight matters. So here they have doubled it -)
It sounds like a flying vacuum cleaner.
they should have just put a wheels on it and call it quad vacuum that be impressive
they should have called it quad vacuum
well, then I guess he just gave you an idea on how to build one
I know this video is old, and I hear you guys' complaints. Yes this is a large drone, yes it is loud, and will cost more than your DJI drone, but so will any drone that big. It is loud but, sounds way cooler than a normal drone, plus, the fact that there are no exposed blades, honestly makes me feel like this would be a great idea to implement on delivery drones, camera drones, etc., especially if drone deliveries become a thing.
Honestly who doesnt want a drone that sounds like its powered by jet engines?
Great job! I hope some company will hire you and give you a few million dollars to produce a larger product, one in which people could fly! Great going! Keep it up!
I gave him a million dollars. .....
He spent it on cocain and hookers 😐😑😕
@@livecanadiangirls2216 lmao true
TLDR; Not a bladeless drone but a flying leaf blower
This in the context of a drone is bladeless
Well, someone may have said this before but I'm not going to read 8K comments to find out.
You, and anyone else working on that project, need to get chest x-rays, to see what kind of damage was done, by cutting and grinding carbon fiber, without proper respirators. It's like asbestos. It gets in your lungs and stays there. It's very dangerous stuff to work with.
You have a great invention, I'm sure it will go far. Let's hope your only investments were time and money.
Cool concept but increasing weight that much while also decreasing propulsion efficiency (large prop/EDF) would surely slaughter the flighttime and therefore usability of the drone. Imo just go for efficiency or power depending on what you want to do with the drone. Drones are not that dangerous if piloted correctly.
The induction fan produces more thrust and uses less power. The power to weight ratio is on par with other quality drones.
@@wetnoodle1 Well. If they are better in terms of power and current draw, why do no professional drones use EDFs?
The aerodynamics that I have been learned says that a bigger propeller running at a lower rpm is generally more efficient than a smaller one spinning faster. But ducting could partly make up for the difference.
Im not claiming to be an expert but look at what companies like DJI are doing on their biggest and most expensive film rigs (where cost doesnt really matter). No EDFs there.
Your right, this is a cool concept but not practical. It’s a nice though but it’s going to take far more work than just the thought to really make this work. Also the amount of tools, materials, experience he had his dad was most likely a machinist or Mech Eng.
Also having built a custom 17in quad your right most EDFs pretty much draw tons of current and have very very heavy motors inside for the performance they offer. Overall the “safety factor” of all the extra weight and the impracticality would take a lot more deep thought and work to execute. Even then would be much harder to build but could be cool. Might try my own shot someday given I have the money to blow lol.
@@9Llamaboy
What i dont get is why you wouldnt just stick EDFs on the ends of an X shape and just put saftey grills on top and bottom. No way to touch the blade then.
Would also result in less weight and you dont have to bend the airstream two times.
My opinion:
Its cool, but not very well thought out and therefore horribly over-engineered.
Seeing that many dislikes for this video leads me to believe that there are people who go around youtube and dislike every single video they watch just because they can.
This is an old video yes, but damn is it still interesting as heck in 2022. Outstanding job.
How is it blade-less if it’s still using blades that are just covered with piping?
@Guybrush Threepwood ironic response...
Hmm ducted fans, fans = blades so is not fanless
gowd sake there’s always one
better title would be propless drone
Person built a drone with expose blades, people says its dangerous, now another person hide the blades to make it safer, people says its stupid, HUMAN, no satisfaction
Bunch of malcontent bastard s
It's not bladeless if it uses angular surfaces to manipulate air current. "Rotorless" helicopters use this same principal to redirect air with a turbine down the tail. Replacing the tail rotor with a directional air system.
Not only safer, but you're less likely to break blades when you crash land.
Very well done young man! Don't let them internet haters get you down. Keep on your plan, this will lead you to something awesome! Been there, done it! You can too!
What sort of flight time do you get? The primary concern with ducted fans is their lack of efficiency, which results in really short flight times (particularly in its use in planes; but multicopters don't have great efficiency either, so it might be closer than with planes). Also, curious to see why you didn't implement a rotating tube "vector thrust" control system, which would give more precise, and quicker response instead of the variable thrust of the standard multicopter. Great proof of concept though, and you might want to give that a thought on your next prototype! The control system shouldn't be much more complex, although I can imagine programming the flight computer might require a little more novelty than its current state. Overall, really great job, and it's nice to see your progression through the iterations.
I'd be amazed if the flight performance even approaches a conventional design. Cool AF though.
yes ducted fans used like this are less efficient and flight times are shorter. I wanted to make something that was super safe even if it was less efficient. rotating the tubes would have been really heavy and more complicated.
It's incredible man, love it.
It looks like a flying desk chair base haha. Great work man super cool. Definatley has some professional applications.
Very well done young man! I hope you have a long bright and successful future, with smarts like that I can't see how you could fail.....Just watch out for jealous people though.
What a wonderful vacuum cleaner it could be! Just add a reverse mode.
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what's so fun? The dude was serious. This thing could become a flying vacuum cleaner which can jump over doorsteps and messy floors, using its AI to recognize what to suck in and what to leave alone. It could become a C3PO! Or R2D2.
This is the future of drone tech for automobiles... brilliant idea
Now make a motorcycle sized version and sell it to the masses for a couple billion dollars!!
Also if you can figure out how to make a pressure diverter valve that will allow 2-3 of the 4 rotors to give equal pressure out of all 4 pipes for a safe landing in the event of a single engine failure and you have the prototype for a truly safe drone flying experience in my mind.
people that give thumbs down get a life.he did good
I assume 99.99% of negative comments are coming from someone jealous. I like it a lot. You know.. for kids. 👊🐶
I congratulate you very nice project, I leave you an idea since I see that you have the economic resources, first join the V-TOL concept of the AV8B HARRIER, with a single engine, it is easier to control the power of a single engine and level with the vectors of the ducts, second, use for the control the gyroscopes used by cell phones and cameras of the latest generation, on the internet you will get the appropriate software to configure the controls. greetings and success!
Cool concept but that's such an inefficient way of doing it. Having bends in the tube drastically lowers the pressure that's being pushed through. Try make one with straight tubes 👍
Needs to reduce the size of the tube and add a cone for exhaust expansion..
Yeah, I was thinking the same. Just mount the motors vertically and put inside shorter tubes without bends. Ok, there would be more danger of putting fingers in, but who's stupid enough to do that?!? Or use much smaller tube as per the other comment above and then expand for the exhaust.
You are genius. You are the future
actually he is the past .... 1959 to be honest.
ruclips.net/video/l9RlguHyvxk/видео.html
I believe your father did a little more than just help you. If you did this on your own I would consider you a young genius, but alas you're just smart as hell. a suggestion if I may: Try decreasing the exit tube diameter thus giving you more thrust, but it must be done such that it does not over heat your turbines or ducted fans trying to push air through a smaller opening. By gaining more thrust you can carry more weight or use less battery power if you don't have any added weight.