Levitator 5 With Fairings and Smoke. Electric helicopter.
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- Опубліковано 23 вер 2022
- Testing flight characteristics with a scale fairing and visualizing airflow with smoke.
Reduced wing surface and angle of attack results in a more agile and speedy machine at the cost of hover efficiency. Hover efficiency for a 5.5:1 scale 12m2 -cockpit-interior-designable-dream-build would be in the 20-25kW region, pretty decent for a V-tol!
Heat shrunk Tesa PP 4024 packing tape covered 6063 welded aluminium frame, PLA printed centre section. Light weight laser cut plywood leading edge wing ribs. TOW 12 kg, flight time ca 25 min. Power consumption in hover with current setup: 700W-ish. 12"x12" propellers. Aerodynamic gearing: around 3.7. 3.3Kg (3x1.1kg) thrust lateral at wingtips at the flight speed 60 rpm (approx.16m/s tip speed) gives around 12kg trust vertically. Flight controller KK2.15HC set up as a + hexacopter. Wings ready to fly weighs 2kg each and the centre body with landing skid around 6kg.
60 -80 degrees pre-set FC-servo signal out to compensate for phase lag/gyroscopic precession. - Наука та технологія
That thing needs LED lights for at night. You'd have the neighbors calling Area 51 in no time. Haha
What's their phone number?
@@realSethMeyers 251
@@legohexman2858 dial 9 for an outsise line
Perhaps in navigating colours just for ease of flying and stationary on the um fuselage thing if that’s what the middle bit is called and facing just the blades it should give an interesting effect
In heli lingo it is called "settling with power", the loss of lift when going back. You may also be experiencing a little translational lift. But that would show up on power measurement.
Enjoying watching your progress with this. It would be so surreal to be wandering along a forest path and to see this heading your way, swirling round gracefully but emphatically like a set of giant sycamore seeds, before passing you overhead. Then after taking a breath, turning round to see it disappearing round a corner in the distance and out of sight, and left questioning if just for a brief moment whether they might be in a simulation after all, and to have somehow strayed into a part of the world they weren't supposed to be in.
Any sufficiently advanced technology is indistinguishable from magic
I would be interested in a DIY e-book on this device. I am a low-level novice to this, but this is so incredibly beautiful in it's simple elegance. I can even imagine the drone with the faring in a future dystopian film.
Thanks, this project just might qualify for a building instruction, I am just not done iterating quite yet. Good to know there is interest in a e-book.
High Torgue brushless motors like the ones in Dewalt.... Makita and milwaukee drills. These motors have so much Torque they over come the resistance of the Extra Large Propellers
It would be interesting to see what strong crosswinds do. as well as the energy consumption to daily load rate and the total carrying capacity.
to compare with conventional things like drones, zeppelins and airplanes...
Rarity value and elegance in flight is already there^^
Yeah, I had a similar vision of a not so distant future, with that graceful aircraft.
CONGRATULATIONS ! YOU HAVE BUILT MY ULTIMATE DREAM MACHINE AND I WAIT EAGERY FOR THE NEW VIDEOS. I MAY BE STATING THE OBVIOUS BUT THOSE CHANGES IN LIFT WITH MOTION ARE DIRECTLY RELATED TO THE FUNCTIONS OF A HELICOPTER ROTOR DISC.
THE INCREASE IN LIFT AS YOU FLY FORWARDS IS, OF COURSE, TRANSLATIONAL LIFT. THE REARING UP AS YOU STOP IS 'FLARE EFFECT'. THAT SUDDEN SINK AS YOU FINALLY STOP IS DUE TO THE THE SUNBSEQUENT LOSS OF BOTH FLARE EFFECT AND TRANSLATIONAL LIFT .
THESE ARE EVERYDAY EXPERIENCES WITH THE HELO BUT EXAGGERATED BY YOUR RELATIVELY LOW ROTOR RPM. IT'S ALL TIED UP WITH DISSYMATRY OF LIFT ACROSS THE DISC AS FORWARD SPEED INCREASES. IN THIS CASE OF VERY VERY LOW RRPM THESE EFFECTS WILL BE MAGNIFIED.
IF A HELO WERE TO HAVE INFINITLY HIGH ROTOR RPM MANY OF THESE ADVERSE EFFECTS WOULD NOT EXIST. IN THE CASE OF THIS EXCITING MACHINE, WITH IT'S REMARKABLY LOW RRPM WE HAVE TO ENDURE THESE HANDLING PROBLEMS.
NOTHING. HOWEVER TO GAINSAY THIS REMARKABLE DESIGN. YOU WILL SCCEED AND ONE DAY YOU WILL FLY IT TO TOUR OWN HUGE SATISFACTION AND THE ACCLAIM OF YOUR PEERS.
AS I APPROACH MY NINETHITH BIRTHDAY I HOPE THE DAY WILL SOON COME WHEN I SEE YOU DRIFTING SERENELY OVER THE TREES IN YOUR WONDERFRUL CREATION.
This machine is just so much fun to look at. Not the ordinary rotary winged craft for sure.
There is something so surreal and uncanny about watching it fly. Levitator really is a fitting name, it's so ponderous.
It's an absolute delight watching this channel. What I love most is your attitude towards what you do: there's none of the wild-eyed raving and nonsense that we get from the lunatic fringe occupied by zealots telling us that their genius will save the world - if only someone would write them a cheque for £1,385,000 to cover the 'development costs' of their latest perpetual motion device (patent applied for).
No. What we get is a clever man experimenting with things for the sheer pleasure of doing stuff and finding out what happens when you do X instead of Y.
It's so refreshing! 🙂
Thanks, I appreciate your kind words!
Love the look of the fairing with the cone. In the manned version a door could open down from the cone and led lit stairs retract. Would make for a great entrance to the carpark at work walking down the stairs casually carrying your laptop and coffee mug. Wings high enough to not hit your workmates cars lol. I’d recommend some good insurance.
I assume that you've already considered the potential for a scaled up and solar powered version as a cost effective communications relay positioned in the lower stratosphere. Excellent work!
this guy would make the coolest neighbor ever
3:20 it looks so graceful and beautiful flying through that fog.
Beautiful! Getting more and more mesmerizing!
I'm enamored by the slow moving props. almost hypnotic.
Very nice, very meditative. You will increase the efficiency ~5% by adding "tiplets" to the outer prop edges (like on commercial aircraft wings) which blocks the inefficient vortexes from forming at the tips as the high pressure side spills off into the low pressure side. You will be able to get the same lift for a smaller prop diameter if you redesign the prop blades to be more like a real prop and less like the wing-based shape you know have - redesign the shape to maintain a constant pitch-to-diameter ratio at each radial prop location, which means the inner parts of the prop will have a larger attack angle with respect to the ground than the tips. the attack angle should decrease gradually from the inside radius to outside radius of each prop blade. This change allows the pumping to be the same for all radial points on your prop. When you make this change, update the flaps to also have a variable attack angle too. All of these changes might not matter since your original goal has been achieved - make a large diameter single-prop drone that appears to effortlessly hover because of the low prop RPM.
This thing has become a flying piece of art.
I already think you are a genius for your gasoline powered 8 copter that you rode in. That isnt possible... The vehicle shown in this video is pure art.
I always enjoy watching your videos, your projects are so amazing. never stop
Congratulations! Your video of your flying vehicle made number one of a list of flying vehicles. Your quad copter. Number 1 out of 10
Great research and diy craftmanship, the aircraft looks like something from the future. Amazing how you have managed to pioneer this with simple resources! Keep up the good work!
This thing looks absolutely amazing!
Love it! With the fairing, it has an "Escaped Ceiling Fan" look to it.
a new way to test wing tip vortices! Nice!
Would love to see the dream version
OK you figured it out I made a comment about the down Wash before I see the whole video good job
Might be interesting to move the motors inwards from the very tips so that their airflow flows over and under the wings and can make use of the Coanda effect.
Reducing the motor radius can spin the wings faster, so having a similar effect to increasing their propeller pitch angle, but may give more efficiency.
A problem with all powered aircraft is, they're extremely violent, which takes much of the fun out of them. This one takes a less violent approach, and I like it.
Wonderful work.
If nothing else you have a great Scifi movie prop, looks sort of CGI with the distinct advantage of being REAL.
Love watching your progress and continued testing. This really is very amazing and educational. 👍
An e-book about the levitator would be great
Check!
fascinating. thanks. looking forward to your progress.
Amazing progress! I’m planning to build a coaxial version of this using a single motor counteracting against the two rotors instead of the wing tip motors. Really neat to see what is working for you!
Awesome, hope you make the manned version! :)
To my surprise I have not run into any difficulty that just puts an end to this project yet = a manned version is still right on track!
And also: THANK YOU Rolf for the epic KK-flight controller! Its just the best tool for a simple experimentalist such as my self. If there was an emoji for a respectful graceful bow it would have been placed here:
Hope to meet you IRL one day!
he would have to solve the problem of not having the rider spin around at 60rpm!
@@amazingdiyprojects Thanks! :)
@@larrybud The center section is not rotating. Watch the flag on top, and the bit with the canopy added. It does seem to yaw pretty quick though :)
Den är svincool ju! Ser fram emot den i fullskala, och att se den landa på vatten 💯😍
Interesting, I understood now why my drone does that slight dip when I slow down, of course it tries to automatically compensate for it, but still, I actually learned something new here :O
Love the scenery love that thing the smoke is such a cool add on I love the trail of spirals it leaves when it takes off, makes air visible. Really cool ideas.
Wonderful. It looks like it working great.
It looks... otherworldly!
Nice results!
A few possible ideas.....
Slightly angle the tip motors up or down, and then modulate thrust for cyclic control?
or dual tip motors, maybe differential thrust twisting lifting wings
Remove flaps or retain for collective control
Folding type thrust props - to help with bending moments at prop root / fatigue / vibration (conservation of angular momentum tries to snap the prop blades off as they circulate)
Awesome projects!👌👍 Very nice work 👏👏
Hopefully you can put some color-changing LED lights at the wing tips and fly at night! :)
It's not just simply getting stuck in its own down wash, it's suffering from a lack of translational lift when it's stationary. Just increase throttle early when transitioning to hover
The umbrella and upside down cone really work in terms of the visual development of the craft!
gettig better with each video.. awesome work and brilliant idea.. good luk man, hope to see your piloted, full scale version in action.. :)
an interesting concept, which is surprising non-standard approach to aircraft. Bravo!
It seems you missed the opportunity to point the camera used to look at motor current. It would have been nice to point it out down the wing to observe the wing and control surfaces while in the smoke. This might tell you if there is smooth and laminar flow or turbulence.
5:42 strange how the air on TOP instantly changes🤯 never thought that would happen
Lovely stuff.
Bro! It flys !
Genius.
That's really cool.
Enjoy watching your channel with the odd projects, have been watching for few years, subscriber. While you were flying with the bubble on top, a silly idea hit me to call this a "mobile ceiling fan". haha. Looking forward to see a full sized "Mobile Ceiling Fan".
Always interesting stuff.
It seems that it flies a wing then down thrust from the rotor, very cool. I would not be surprised to see something like this as extra terrestrial drone.
I'd love to see something like vtol props, flat profile inline with and set into the mid-wing, that turn on and off only as the wing leads into the wind (losing lift), and maybe adjust forward prop speed to save power or aid rotation. Mainly with a view to making it flyable in high winds.
Very cool, and seeing the floating person pod, aka pipe dream, is exactly the inspiration we all need. Keep it up!
My guess is that the additional weight and drag would reduce efficiency.
Wonderful machine. Wonderful wonderful.
In the emergency you could increase its wingspan on the fly folding wings like f14 so would have fantastic properties of speed and safety on the click of a button without add much complexity.
Now you need to build another one just like it, rotating in opposite direction, & then build a wing. Mount each craft on the ends of the wing & see what happens🤔👍🏼👍🏼👍🏼
You did as I told you, but make the body a little bigger this time. Any questions just ask. And don't take too long.
it looks super stable ... i understand the desire for horivontal speed , BUT what is its lifting power ... compared to helicopters and drones ... could replace the pink elephant in los angeles ... a big old heli used for roof top equipment and precarious hot tubs
He did a test last video I think
I did almost the exact same craft several years ago for my senior project. I had 6 wings, 3 motors though. 9.5ft diameter.
where can we see it?
Superb!
Look into "Vortex Ring State" and "Translational Lift" which are design and operational considerations for helicopters. For even more info, check out Hovering OGE (Out of Ground Effect) operations for helicopters.
Very cool project, thank you for sharing. Btw, on Top of both sides of the central axe, try to use 2 motors with 2 large/medium metal discs in parrallel to behave like a gyroscope, even with one motor , i think it will improve hihly the stability and direction control, an arduino controler might be suitable to control motors for better accuracy IMO
Super awesome 😎 👏🏻
I really want one of these
Try to jam as many n54 magnets in the push polarity in a ring. Metals mean alot . brass will lighten weight once put in an object. And aluminum ring will self propell each magnet creating free energy as well
Not sure why, but I was always fascinated with making a rotorcraft that had a relatively low rpm. The inspiration of which came from the XH-17 which also shares the tip thrust design. I like that you used smoke in this one. I can see that the inboard tip of the blades also creates a vortex as I'd figured; pretty interesting.
I always wanted to make an RC model of the xh-17. I've pondered ways to do it, either through a single EDF or EDF's mounted within each blade. Not inspired by efficiency by any means.
heres an idea. make it variable pitch on the wings. its hard to do but may be woth it. also carefull using bigger props, dont burn your motors up
The makings of a new heavy lift craft.
I never thought I'd see something real flying in the kind of way that Totoro does !?
This was really hard to find again - great aircraft though
really cool craft, just a tip use orange or blue smoke grenades they produce the most smoke volume per amount of mass.
I think when you say you need to increase power while it is in the downwash, is actually the wings were stalling.
This is so beautiful! I would love to see what would happen if the motors were: a) situated to move air from the center, out across the top of each wing, or b) situated on a vertical axis on the leading edge of each wing. note for marketing... a lightweight array of LEDs in the wing could be used to make a Hollywood-worthy silent radio. thanks for sharing and good luck
Two counter rotors to the side would seem more naturally balanced. And could be on tilt wings so it can be very fast in level flight as well.
Another comment I still have not seen the whole video but I reply as I watch the video I know I notice that the smoke grenade on the tip of the rotor did not seem to make any vibration or out of balance effect I guess with the Rotor is spening so slow the precision of a balancing a blade is not as critical.very interesting
nice.... planning and plenty of bottle. to succeed
you need to try experimenting with the angle of the motors on the wing tips could gain some efficiency there
Do that in a public park in the morning and enjoy the UFO sightings on TikTok in the afternoon
Need to make a study of the efficiency of the motors prop power along the distance from the central axis in order to choose the good length of their position….
What if instead of puting the motor to the tip put it right on the wing part to have the advantage of lift and so increasing the reaction of the controll surfaces
Really interesting, and I'm surprised at how much directional control it has.
I make/made my living designing electric aircraft power systems. RadicalRC if you want to look it up. My sense here is rather than increasing pitch, you'd be better off increasing motor KV modestly. You recognize the KV path because you mentioned not being able to increase voltage. At low speeds, high pitch props are sub optimal. You may be increasing the efficiency of your system increasing pitch (and thus pitch speed) yet only smearing makeup over a big blemish of running too low of KV. In other words, you might be down at 40% efficiency and improving it to 45% seems like a lot while there may be much more to gain and little more to lose. These high pitch (read high angle of attack) props might not be stalled but I bet they are close with pretty turbulent flow across their surfaces. Roughly speaking, if the motor speed (in your case the speed of flight at the motor's rotational radius) is under 40mph, you're better off with 1/2 square props or nearly so. (I recommend mostly 1/2 square props in the 28 to high 30mph flight speed range) By 1/2 square I mean a 14-7 or 10-5 has 1/2 the pitch of diameter. As you increase flight speeds you want to increase the ratio of pitch to diameter. To run square or over square props 12-12 or 12-14 for example, you'd be planning on high rotor tip speeds like 80mph or above. In the 50 to 70ish bracket, you should be KV'ing into roughly 3/4 square props. These are rough rules of thumb from decades of experience. You might surprise me with your motors flight speed here, but they look very much on the slow side. There are many factors here and I've not seen all your video's, only 2 or 3. Consider the very high angle of attack of these high pitch props you are now running. In a high-speed aircraft, the angle of attack in greatly reduced by speed of the incoming airstream to be much like the angle of attack of a lower pitch prop at a lower speed. There are lots of interesting factors in what you are doing here. Also, to be considered is the airspeed of the downwind blade here being a limiting factor in how much wind you could safely maneuver in. To understand this though, look into what limits the top speed of conventional helicopters. You're doing all your testing in pretty dead air which I understand fully. The horizons of aviation are pushed forward by people like you tearing through the side of the paper bag to see what lurks outside the envelope.
Cool!
The new look reminds me of one of the enemy drones in the Air Rescue game from MicroProse's Top Gunner Collection. (People that remember 8-bit computers might know that one.) I find that a bit amusing.
I am not really a technical person, I just enjoy how alien it looks and moves. In your fairings design, you have put the pilot above the wings. How much top-heavyness can the construction deal with, without sacrificing flight characteristics?
That question makes me think about the scale that this thing is going to be to have to thrust to carry an average person, The seat could be lowered on the vertical axis to keep the center of gravity? But that would make vision tough for piloting
..you haven't had a certain Ice Cream manufacturer knocking on your door yet ? :)
Maa get the camera i see a ufo This is awsome
That's so beautiful ! Imagine that at night with blue LEDS. Please don't re-invent the helicopter! Large slow moving wings will have their application! Think high altitude still air...
Research a heavy-lift Wings Cross-section it's what the big cargo planes use
I wondered if you could use dynamic wing warping to achieve more directional control, or the helicopter swash plate effect...with modern control sytems, and theory, you can do quite interesting real-rime control of motors and wing shape/angle-of-attack??
Would the landing gear as a tripod be a little more efficient to absorb the impact of landing? Would painting the said landing gear a bright orange or yellow help to determine the demarcation between the craft and the ground when landing?
Maybe you could sell that thing to darpa as a smoke dispenser :D
Maybe you are the first person to get a WW2 German Trieb-Flügler to work.
Would the wings have enough surface area for solar panels to power the aircraft/keep the battery topped up in flight?
.......👽.......Is time for building bigger and sit down....😎....4:26
It’s weirdly mesmerising……
Enjoyed. Do you think one day it will be autonomous? Thanks for sharing.
If I was in the woods and that flew up I'd crap myself.
At ua-cam.com/video/z0LwgyphpsU/v-deo.html I noticed that the wing flexes on the middle. Does that affect the response of the control, e.g. maybe adding latency to the system? You could add another set of wires attached to the middle of the wings to stiffen them up.
and that's how UFO stories are born X)