Aesir Coanda-effect VTOL UAV

Aesir video of its prototype vertical take-off and landing unmanned aircraft, which uses the Coanda effect to generate lift by blowing air from a central fan over its curved surface. Aesir was formed to develop the UAV when original developer GFS Projects ran out of money - GFS stood for Geoff's Flying Saucers, named after original designer Geoff Hatton. See www.aesir-uas.com. For a video of the latest Embla demonstrator flying (with sound), go to • Video

[@SvenOkonomi]

Im a huge fan of odd flying machines and this one ranks right up there. Ive seen the Coanda effect before, but never quite as effective as this fantasic machine. I wish I could build this myself.

[@h7opolo]

i believe in you.

[@smalltimeprepper4885]

Lets all build it!!

[@onlygearwarrior]

I'm glad to see this worked!! I had that idea when I was a younger and people thought the idea was stupid. Way, way cool neat rig.

[@grah55]

The air around the disc is slow. *Friction* wants to slow all air that is fast to the same speed as everything else that is slow to create a uniform air speed/flow. Step 1: Shoot air out to the sides right next to the disc. (All the following steps are automatic). Step 2: The high speed and high pressure air wishes to *expand* and slow down evenly like it should around the fan but it can't because the disc is there. Step 3: The high speed air maintains a higher speed and *high pressure* near the disc until it finally reaches the bottom of the disc at the bottom edges. Step 4: There it can now decelerate at maximum efficiency just like all the air above the blower/spreader fan by expanding freely. The high speed air flowing over the disc going downward is the important part here: It has 2 effects. The first is obviously that it shoots air down fast and we know that every action has an opposite and equal reaction. The result is *thrust* upwards from the exhaust like flow downwards. The second effect is that this high speed moving air curving from the outward direction and then flowing downward creates a vacuum on the air directly above it (actually around it) thanks to the natural *viscosity* of all fluids, air being one of them. As a result of this vacuum or *low pressure* above the disc, it sucks in the air above it. The high speed moving air will not equalize the vacuum above it because this high speed moving air is experiencing a much more extreme low pressure differential. In other words, since the air directly ahead of the high speed air flow pathway is moving fast and down, the air directly behind it in the airflow will follow it due to the void that is trying to be made by the air flowing fast and down around the disc. These 3 factors strengthen each other and the result is overall lift: The air cone over the disc *expanding at the bottom* creating a pillow of air below. The *air being shot outward and down* sucking in more air behind it, lastly, creating a viscous *vacuum of air above* it in the opposite vector of inward and up both create a resultant inward and up *net push/pull*. The inward push results in flight *stability* since it's equal in all directions. The upward push/pull obviously results in visible *lift* and *flight*. Since the disc is analogous to an *aircraft wing*, the 4 movable surfaces directly on the disc's curved surface at the bottom are essentially *ailerons* as they control the roll and pitch of the craft (Since this craft has no real lateral motion involved in it's lift production, pitch and roll are simply a matter of reference). High speed moving air is also known as a jet of air. The effect of a jet preferring to slipstream near a surface is the actual Coandă effect. (An example of a high speed flow pushing away from turbulence). The other famous property of the Coandă effect is that of the drag of the high speed air causing a pull perpendicular on a surface. The drag into the flow which is also the Coandă effect due to Newton's third law of physics is actually what causes lift on all laminar flow, fixed-wing, forward-thrust-only aircraft. This specific aircraft couteracts main rotor induced rotation via small fins on the side redirecting air to the opposite direction of the aircrafts induced rotation. Optionally, they should be movable and would be analogous to rudders that work perpendicular to standard rudders causing the same effective yaw rotation except applicable at 0 airspeed since they affect the downward coloumn of air rushing over the disc, just like a helicopter can turn at no airspeed as well.

[@Tony-ot4mh]

Well done excellent explanation of the process, hope many people read this. thank you

[@leif011]

the flaps idea was genius. :D love it.

[@mikethezipper]

Wow, this UAV sure is innovative, must be one of, if not the first UAV that's controlled by man!

[@christophepeche5075]

Superbe conception de soucoupe volante, très bon pilote, merci.

[@Kira200905]

1956: In New York, Coandă was honored as the inventor of the first jet aeroplane: one speaker lauded him as "the past, present and the future of aviation."

[@LTF85199]

it seems super stable!

[@deanmohamed795]

Simply amazing. Just wait a BIGGER version materialize in the next 10 years or so!

[@grumpycat6429]

I’m from the future. Nope..

[@BookProX]

Excellent example of Coanda effect. Too bad his aerodynamics discoveries were ignored to some degree when he was alive. In fact the Avrocar and the Moller M200G Volantor flying machines, would rather have had a better future today than scrap metal. Thanks!

[@ihamoitc2005]

Either counter-rotating propellors or simply the motor and prop are allowed to rotate within the body so the motor spins opposite to the props. Since the props have a small diameter and a more aggressive angle (than purely axial flow rotors) they could be made extremely light, allowing for a very high RPM differential. The only challenge would be minimizing friction between the body and the engine's shaft. Given the relatively weak forces involved this could even be solved magnetically.

[@universalsailor]

Romanian engineer Henri Coanda was designing aircraft in 1910 (read about the Bristol Aircraft Co. in England.) His early jet-powered plane was dropped because the Coanda effect caused the hot exhaust to stick to the fuselage and burn the plane! Not really what you want at 100 feet. The problem with this gizmo in the vid is that it's difficult to know where to attach a load without distributing it or using counterweights. In a piloted version, where would the pilot sit, and how would it conveniently lift equipment? Also, it's hard to scale up in size. But as an alternative to the quadcopter, it's a novel application, if a little noisy.

[@GlossaME]

Now you have jet powered aircraft everywhere. You can thank him

[@RoboTekno]

It's Weebo from Flubber :D

[@doceigen]

People on KZbin don't tend to discuss specifications, they go for dramatic footage and music, although this has no music it doesn't contrast the lift efficiency.

[@DanFrederiksen]

nice. it's so stable it looks like CG.

[@mlp633]

I saw one of those in 2007 except it was black and white with red and white blinking lights.

[@zero00tolerance]

an UFO hehe

[@quangminhnguyen6947]

I'm so happy, you have my idea is similar.

[@sgsawant]

It's much more than that. Judging by the likes the comment has received, most people don't get the difference. Coanda effect postulates the attachment of flow to a curved surface - Bernoulli's principle on the other hand doesn't talk about flow attachment or entrainment. Furthermore, Coanda effect holds true for any suitable curved surface (like that of a wing) and not necessarily a 360 degree wing.

[@ArtyomGalstyan]

You see there are some small surfaces on a skin, inclined at some angle. When airflow passes between them, it makes the oposite rorating moment and body doesnt spin around.

[@pushinold]

That is a neat design! I bet you could make it autonomous without adding too much more weight.

[@WeBeYachting]

Great video its just awesome. Cheers from Sint Maarten

[@jonniBoi16]

According to Popular Science magazine the Aesir is currently being marketed to security and police agencies with great success.

[@gusy629]

Great UFO design with levitating technology. I like to encourage to use antigravity technology like electro magnetic technology.

[@dahmanus2002]

thank you for this videos

[@scotbotvideos]

This could easily be scaled up and to include crew (and / or passengers) too. Come to think of it, I'm surprised the US never made more of the Avrocar 'flying jeep' project. (Then again, maybe they did, and now it's classified.)

[@truvak]

could you please dress it like a grey UFO, with a little green man inside, and scare the shit out of everyone a la Orson Welles? Thanks :)

[@peace-sx1uj]

I like you

[@roidroid]

i understand this has very good flight/hover stability, and has a lot fewer exposed spinning parts that can be damaged by the environment. But how does the efficiency compare? Does it pay an efficiency toll for these improvements?

[@ihamoitc2005]

Angled vanes will work but it reduces lift efficiency by 5-10%. Counter-rotating props aren't all that heavy and actually improve lift efficiency.

[@thebrain9384]

An interesting and stable design, still just a drone.(and possibly an inefficient use of a prop, I still say your original blade was more efficient.)

[@nicodimmuresan3362]

Ca român, confrate cu Henry Coandă, mă bucur de descoperirea tehnică a zborului unui profil aerodinamic de formă rotundă. Marele nostru român l-a descoperit şi experimentat la Paris.

[@nicodimmuresan3362]

Andrei, mă bucur de oamenii care cred în puterea minţii umane, care descoperă la un moment dat, lucruri extraordinare. Dacă este şi român, ne tresaltă inima de bucurie!

[@aletrip642]

It would be interesting to see how it would perform as an umbrella with the follow me function

[@zbigniewteterycz1571]

SUPER IDEA . POZDRAWIAM .

[@Kira200905]

@BrazillianFOsho -the tendency of a fluid jet to be attracted to a nearby surface.[1] The principle was named after Romanian aerodynamics pioneer Henri Coandă, who was the first to recognize the practical application of the phenomenon in aircraft development

[@fz6734]

There is more than just downdraught producing lift in this UAV, it uses electric motors which are quite heavy. It looks as though contra-rotating flywheels do generate lift.

[@ipissed]

There is no counter rotating flywheels, the fins along the side catch the downdraft, and that keeps it from spinning. Counter rotating props, or flywheels would just be a helicopter. This is an actual tech, although probably an inefficient one.

[@cyberneticinterfacemodular3996]

cOULD BE IMPROVED.

[@merlin5520355]

My first observation this is "another" VTOL machine with limited viability to high speed forward flight, similar to AVROCAR but better. My approach was to create a high speed forward flight saucer, VTOL can come later. See book by Bill Rose- Flying Saucer Technology. A Geobat concept called Skyblade is on the cover. To be sure, your work is much appreciated on this end, may lead to something heretofore unknown. It's already happened to me...Geobat inventor. Circles allow new tech to unfold.

[@Andrecio64]

I saw that propellers make more thrust that impellers so i think there's more efficient propulsion systems than that

[@121ego]

More efficient gain in lift coefficient, increased overall surface pressure (producing a higher uplift force), less image on radar, less friction from the rotating propeller, less unbalancing of the centrifugal and torque force generated, hence more stability. Less flutter and noise for detection. Less maintenance, more payload. Like the brits said when testing the German made Sturnmachinewerkzeugt: "it uses too many bullets!" (Machine gun) No kiddiong! I believe it to be all pluses here.

[@VTOLKits]

Great UFO !

[@olgakylycbekov3207]

Arthur

[@alexanderva3175]

СРОЧНО!!! ВСЕ СОБИРАЕМСЯ НА МАРС!!!

[@haroldwestrich3312]

Ummm. it is IDENTIFIED as a Flying Object that "The Woracle" made. (NO longer an "Unidentified Flying Object")

[@benjamincormack3217]

looks exactly like a flying saucer!!

[@Hiersc1385]

the cabin would be idealy located underneath the rotors. there is plenty of room under there besides the engines since no air actually passes through that space

[@Jerry4Dover]

@SavageInsight :NO, it's NOT Bernoulli at all. Bernoulli applies to air flowing through a restriction, needing to conserve mass by changing velocity and pressure. It's not a great explanation for flight, since one side is OPEN. Bernoulli is only a guess for flight. Look up Coanda and learn.

[@mitster85]

my great uncle built one of these back in the 70's, i suggest you cover it in smooth polished aluminum.. for aerodynamics of course

[@rafaeterna1081]

did your uncle happen to work on area 5- i mean on his very ordinary workshop in Nevada ?

[@M_G79]

@SavageInsight the so called "coanda effect", it was discovered by the Romanian inventor Henry Coanda. He is the father of the JET ENGINE and other aero dynamic principles like the modern plane wings.

[@AnandaPriyadharshan]

added with a Vid cam this will be a good thing to be used in COD MW2

[@solarheatengines]

That's pretty cool. I noticed the video does not include it landing. Does it have an instability close to the ground? Can you provide engine power and weight for comparison with other lifting methods?

[@thevbman]

The military doesn't use this. The Coanda Effect is used in some aircraft like the AV-8B Harrier for it's VTOL capabilities. But this design has not been bought by any branch of the military.

[@MrSkyl1ne]

@aahedo Sure, if you fix them an antigravity device, they can. You could also use rockets, but that's not very stealthy.

[@kakavdedatakavunuk8516]

very good

[@ElanaVital83]

Awesome! I want one!

[@Gianfranco_69]

well done,you've re-designed the helicopter

[@templarseries]

That's fan - tastic

[@Star_cab]

The military did some time ago with the Hiller VZ-1 Pawnee.

[@AnGeeKz]

1st step to our future car :)

[@ShadeOnTheUtube]

Can't help wondering how much lift off power this is capable of producing, whether its just enough for itself or if it is capable of burden.

[@sheldonmurphy1]

That Is Cool !! Nothing Else I can Say, but COOL !!

[@tubawdoc]

nice.... like it.......

[@antoine1407]

congrats :)

[@Cuitarr]

@Shodan82 Because this construction is really simple. Not like classic heli.

[@thevbman]

Also, it looks like a very stable design but how much thrust can it actually produce?

[@MrJohn1966elliott]

Cool !!!! What about on-board camera on it ?

[@sleepingeye]

Very nice i want to build/plan something similar only with the air stream and controls inside.

[@roadrash2187]

correct me if i'm wrong. a helicopter can autorotate if the engine fails. This will just turn into a brick.

[@annihilus10]

Well done! It is capable of lifting a craft! I still think that your layout could be improved in terms of efficiencies. Recommend: "Fans" by Dr. Dipl. Eng. Bruno Eck, 1972.

[@yurygolubev5757]

what's happened if to remove the yellow body and leave the ducted fun with different inlet/outlet diameters (as it is) and the engine? Will this fly without the body? I have a suspicion it will. This could mean that the fly on the video has nothing common with Coanda effect. The machine may fly because difference in pressure between upper and lover parts of the ducted fun (because difference in velocities). Second experiment is to remove only the body of ducted fun leaving all rest the same. Will it fly? I doubt. But you can try and let us know.

[@Berserker71r]

Yuri Golubev w

[@johnklumpp7901]

Well, one could pull the wings off a Harrier, and one would then end up with a slow craft that can hover and move about in the air while emptying its fuel tanks rather swiftly - but for what purpose?

[@billkeys3336]

Where do the cameras go? I seems so precisely designed that any slight modifications to weight or structure could diminish its dynamics and make it inefficient for anything more than a toy. Now if you have three of these doohickeys working in tandem or even connected to tow gear it might be more useful

[@omglikegeezwtf]

I would have liked to see it hovering, but it looks like right now it's restricted to being radio-controlled which might make such a thing hard to do without computer control. looks interesting though.

[@121ego]

@KenoshiAkai - Sure, there are far more "waves" out there than we can count, and all of them have energy...

[@stears555]

Please don't lie!1908: Hans Holzwarth starts work on extensive research on an "explosive cycle" gas turbine, based on the Otto cycle. This design burns fuel at a constant volume and is somewhat more efficient. 1908: René Lorin patents a design for the ramjet engine. 1909: Marconnt proposes a modification of Lorin's design using a resonant compression chamber, creating the pulsejet.

[@Homieto]

just wondering... how do you keep it stady.... i mean it isent spinning how ?

[@islaanimalsrenzhengfei1697]

A GREAT AVROCAR

[@narutofan9tf]

that is so epic! Imagine sending food to someone uptairs, thatt would be really lazy but cool!

[@SavageInsight]

So the coanda effect is basically a 360 wing application of Bernoulli's principle?

[@rainbowdash9388]

Watching this and how the Magnus effect can be used to move forward gave me an idea. What if you use the same machine from this video and add the rotating cylinders on top? Would it be floating and moving forward?

[@rafaeterna1081]

LMAO, the idea was used to control drone movement in besiege game drones. seeing that people make gyroscope controlled cubes that can roll and balanced on its own id say it can be used on not all hovering drones and even bikes/motorcycle

[@JohnDoe-fz5cz]

some of the lift may be coanda effect but some probably comes from direct thrust from the fan???????? the question marks mean i'm leaving room in the hope that i'm wrong.

[@stemplar9916]

Very interesting , but it is not a new concept in design.I designed a lot at the skunk works including similar lift methods for triangle crafts.What radio are you using.

[@doceigen]

I'd like to see the math demonstrated gains in lift efficiency over standard rotor propellor lifted aircraft... the only advantages I see off the bat is, lower distributed pressure, protection of ducted fan from live fire in a battlefield, and with a shaped cowling... better stealth than a helicopter. But fuel wise... a lot of drag there.

[@AnandaPriyadharshan]

@WiriamuFirippu yeah, i know, the point is, am so attracted to the run and gun and then say Woohaaa!!! thing :)

[@avionicstechshop7664]

There was a problem with your link in the description

[@richardsilvera5926]

How do you prevent the body from rotating. A helicopter needs a tail rotor.

[@eterentreelos1587]

PEACE - Plasma Enhanced Actuator for Coanda Effect and Archeon Project - 2015!

[@ericrocksabeard]

Would putting golfball-like dimples on the top end produce more lift?

[@gera8083]

wow.now,that's real FLYING CAR

[@helenbrisk5738]

Well the guys that "officially" invented the jet were born when Coanda already created the first jet airplane - that eventually crashed. He later used his jet engines in sledges. So I don't know why he is not officially considered the father of jet engine.

[@LTF85199]

1 giant step i think, this is got to get big.... i bet

[@masimons]

Cool, paint it black, add rotating LED lights, and fly it around vegas !

[@zavatone]

Thanks. How much does the shape of the um, undercarriage, affect the liftoff characteristics?

[@zavatone]

Why does the video have no sound? What does the craft sound like?

[@daboom73]

but for recon what would be better they thought it through

[@Leontestedevorant]

Nice Job bravo :-)

[@thevbman]

what type of materials are the body made out of? and what type of motor is used? I'm interested in making one myself

[@TheNeokorben]

MORE STABLE THAN HELICOPTER,AND CAN BE BETTER CONTROLLED AS WELL,THIS EFFECT IS DUE TO SHEDDING AIR PRESSURE,AND THE SAME CAN BE USED TO SHED GRAVITY EFFECTS ON A BIG MASS,ACTUALLY CAN BE BIG MASS...BUT I HAVE TO STOP TALKING HERE ,IT IS A SECRET I FOUND

[@gilbondfac]

i want buy one

[@leonidassaber7335]

the latest video in the description is unavailable just thought id let you know.

[@kmekrine1169]

Cool, but where the hell is the sound?

[@kruppenstein]

how come it's never been used in transportation?

[@Raylennphoenix]

neet, I built one of these with my father when i was 13... not nearly as smooth or well built as this tho. There scaled up version some where?

[@darkangel242009]

What is the lifting-power of the craft?

[@jsmythib]

:10 looks like the thing you send through the stargate first :)

[@tridian]

But anyways you still need a method of controlling yaw. counter-rotating props can do yaw control with different rotation speeds and hence different torques, but the response time is greater than using vanes. vanes are also easier to implement. But actually another solution would be to use stators in the propeller assembly. Not sure whether its more efficient than vanes though.