Most Advanced eVTOL Propulsion System: Adaptive Ducted Fan

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80% of the current most advanced eVTOL projects are using well-known open propellers as the main propulsion system. This simple and straightforward approach allows manufacturers to quickly progress in the development of an eVTOL aircraft to make it marketable. This is a great strategy from a business perspective. In the future, however, these companies could be facing real market application issues related to payload, safety, noise, and scalability. In this video, I will analyze the main advantages of ducted fans over unducted propellers, and I will explore a new and advanced eVTOL propulsion system that offers extra thrust during hover, reduced aerodynamic drag, 40% greater efficiency, and has the ability to assist the aircraft in the transition from hover to cruise flight.
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| Xagon Solutions |
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NextGen eVTOL - Propulsion System - Proof of Concept: • NextGen eVTOL - Propul...
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◼︎Related Video:
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Sources:
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1 фев 2022

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@eVTOLinnovation 2 года назад

You can now Sponsor my next eVTOL Innovation RU-vid video! Get your product, service, or content in front of an audience of 231,500 viewers per video [Average] Reserve a Sponsorship ➡️ www.evtolinnovation.com/sponsor 👇 TOP 8 most Advanced eVTOL projects 👇 - Lilium, The company Elon Musk wishes he had founded $LILM: ⚡️ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-fmiVd-CiNmw.html - The Outstanding Engineering behind Kitty Hawk's Heaviside: ⚡️ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-fL3-mWvkCD4.html - The KEY aspects of Opener's BlackFly Innovative Design: ⚡️ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-FQVAOHxFY0M.html - Jetson ONE. The first Personal eVTOL Aircraft that you can actually Buy: ⚡️ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-J-oQemKDGfY.html - Why JoeBen Bevirt founder of Joby Aviation is leading the Electric Air Taxi race: ⚡️ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-ypCnYVspk0c.html - BlackFly, The "FLYING CAR" that you can afford to Buy!: ⚡️ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-ZPl0YOliqCE.html - How Google's co-founder, Larry Page, is building a Flying Car Empire: ⚡️ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-FsIAS1XI2dQ.html - Ehang VS Volocopter | Air Taxis Race for the Urban Air Mobility Market: ⚡️ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-w_NAJBoFlUI.html& • Second channel | eVTOL interviews and short-form content: 🛩🔋ru-vid.com/show-UCOXyvN8Jp2uXslB-RqHrftw 🔋🛩 • My Twitter 👉 twitter.com/eVTOLinnovation • Contact me: 📧 evtol.innovation@gmail.com 📧

@aarona5522 2 года назад

Did someone say advanced??? hmmm i dont think so. Viktor Schauberger.

@pietskiet8763 2 года назад

Do you plan to recharge on descent?land spot on like Musk boosters..can limit the extra batt charge for looking for alternative airport and weather limitations all in one ?

@user-gq9qh2kw6h Год назад

... Looks like an scam

@xevious2501 Год назад

Novel idea, seems cool but many many more moving parts which means many more places of possible failure. Not to mention additional complexity in part creation and manufacturing. still its a novel idea. Ive never been a fan (no pun intended) of open rotor designs. The Lilium Jet for me is still by far the leading design in this category of aircraft. Safety for me is the primary issue. Many many open rotor blades all moving at high speeds and a very high risk of cataclysmic failure and extreme safety risk for passengers in the event of an accident. And we should all expect an accident event with each aircraft. be it bird strike, or some other unforeseen event that would otherwise see rotor contact with a foreign object. Ducted fans vastly reduce such risk, as a serious engine failure would physically be contained within the duct.

@AllanRosd 2 года назад

Impressive I've been designing mechanical parts for more than 10 years now for drones, seeing this is like a dream. Good times to be alive

@edwarddejong8025 2 года назад

This type of approach will depend very much on the mechanical engineering skill of the fabricators. To keep the weight down, and the number of moving parts minimized, will be a huge challenge. The noise issue is critical for electric aircraft to succeed in the cities. At present for example, helicopters are banned from the bay area; you have to land near the airport, as the noise was just too much. In Brasil, Sao Paulo, has the largest helicopter fleet on the planet, because they don't have noise restrictions. So ducting may be necessary, even though it costs weight, because noise pollution from a lot of these things buzzing around will be quite annoying.

@swisstraeng 2 года назад

There is another issue also. With 4 fans, should an engine fail in hover flight, there is no way to avoid crash. A helicopter can still land should it lose power. Same goes for aircrafts. That will likely mean 6 fans minimum are needed, and tripled up electrical systems, and make sure the aircraft still flies with 4/6 fans.

@edwarddejong8025 2 года назад

@@swisstraeng i think the electric helicopters are going to need ballistic parachutes, as i don't think triple redundancy is cost effective.

@nibblernibbles3205 2 года назад

Another better to the noise problem, is just not to have them in the first place.

@billyswong Год назад

@@swisstraeng The adaptive ducted fan seems to be designed for winged aeroplanes that can also take off or land vertically. To avoid crash, the solution seems more about making the planes glide-friendly, not adding extra fans.

@MilitaryMatters1 Год назад

It's easily done. Lockheed Martin has Boyd B. Bushman to thank for this brilliant invention. It works like a fuggin' charm.

@Elrog3 2 года назад

Its a nice idea, but those quoted efficiency gains seem unrealistically high. And battery tech is still going to have to get a lot better first.

@EdwardChew 2 года назад

agree

@badsamaritan8223 Год назад

Battery capacity just doubled. Amprius is taking their battery to production. Over 500wh/kg, while Tesla's is 300-something.

@Elrog3 Год назад

@@badsamaritan8223 I'll believe its tranformative when I see it. What's the cost? How much are they able to produce? What is the expected cycle life?

@paitenkersuresh5985 2 года назад

This is one i am weighting for very long time. Its amazing analysis. Keep it up

@shauljonah6955 2 года назад

I have liked vtol for a long time and now improved again . Amazing 👏 thanks for sharing.

@jayknight139 2 года назад

Wow this at least seems like a decent step forward in tech for this field

@ThatBoomerDude56 2 года назад

Doubtful.

@kenrobba5831 2 года назад

I liked the “take” having experimented with models, liked all the considerations taken into account.

@nelsonneves5880 Год назад

A small twin electric ducted fan jetpack with this system would be an interesting toy

@clarencehopkins7832 2 года назад

Excellent stuff bro

@aafjeyakubu5124 Год назад

Increasing complexity is rarely a path to improving reliability. Would love to see these things come to market, but I'm still not convinced they are a solution to an existing problem, or a solution in search of a problem.

@jedimastersterling1 2 года назад

That sound like a really clever solution to a really dumb problem. Private helicopters are not a big market, electrifying them won't change that, and no one uses helicopters for bulk goods transport, there's a reason container ships and trains carry hundreds to thousands of containers at a time and not just one.

@davidficca8963 2 года назад

I think the idea was to use them as cranes to move containers but why do that when you could use trucks

@ThatBoomerDude56 2 года назад

@@davidficca8963 Right. Ground based cranes and trucks are an order of magnitude more efficient without having to use air to thrust them into the sky.

@blakelowrey9620 2 года назад

@@ThatBoomerDude56 if you could eliminate most of the massive costs, noise, and maintenance of a helicopter I'd imagine it would be a lot more common in the civilian sphere

@ThatBoomerDude56 2 года назад

@@blakelowrey9620 Yes. It would be "more common." But still not extremely common because it helicopters are massively inefficient compared to ordinary airplanes. And the necessarily smaller blades on a set of ducted fans makes it horribly less efficient.

@blakelowrey9620 2 года назад

@@ThatBoomerDude56 sometimes utility is more important than efficiency is what I mean. I don't think it would ever replace ground based infrastructure but for emergency vehicles and fast private transportation for the wealthy, I think it makes a lot of sense. Basically you are just getting a little helicopter that is safer for bystander and can be operated with a less extreme maintenance cycle, nothing more. It would be restricted in range and flight time but I don't think that's a huge issue for a system limited to an urban metropolitan area.

@eduardomalveiropereiraleit4705 2 года назад

Thank you. It Learned a lot!

@L33tSkE3t 6 месяцев назад

This is a really novel and innovative way of problem solving for the efficiency loss from un-ducted fans while greatly mitigating some of the issues when utilizing ducted fans.

@Aloha_XERO 2 года назад

I learned a lot and gained inspiration from the video

@patrick1532 2 года назад

"The team began development back in 2019" *Black and white photos*

@theothergameygamer 7 месяцев назад

Kudo's to the narrator's ability to say "Adaptive Ducted Fan Propulsion System" often and with clarity!

@ObjectivePersonality 2 года назад

Wow! That is NOT a small improvement.

@ThatBoomerDude56 2 года назад

It's probably a *very small* improvement -- if any improvement at all.

@federicosagun4615 2 года назад

Well done.

@L33tSkE3t 6 месяцев назад

Idk how much sense the Cargo Container/ Freight version of the E-VTOL craft would make but, I think it could be very easily adapted to make a really sophisticated type of Emergency Aircraft that can hold swappable pods, like it would containers. Able to hold various mission specific payloads, such as a medical pod that can not only serve as an Emergency medical transport helicopter capable of handling both transport and triage of multiple people simultaneously but, also as a full sized ER room that can drop off fully equipped medical facility pods to remote areas or a battlefield. Possibly even a firefighting VTOL that can hold more water than a helicopter equipped with a Bambi bucket and potentially operate remotely or autonomously.

@regularguy8110 2 года назад

Xagon Solutions should collaborate with Thingap, Inc. The result would be Awesome!

@saminsiddiquee2059 Год назад

Good Job to the company

@pubfixture 2 года назад

I LOL'd at the end where they had a "Heavy" lift vtol and were going to "disrupt" the cargo offloading sector!

@115_vaibhavidangre4 Год назад

same🤣

@fonwoolridge 2 года назад

Very very interesting! Thanks...I think you /they are really on to something here.... This is totally the way of the future.... Now.... if this was just combined with a WIG/WISE craft..... 🙂

@michaelginever732 Год назад

See the Lillium prototype. Looks good.

@markhuebner7580 11 месяцев назад

Awesome! Now if I can just find a way to put the adaptive structure on the rim of a motorcycle wheel we might have a breakthrough commuter vehicle!

@paulrandig 9 месяцев назад

The term "retracted adaptive ducted fan" several times in a sentence is hard work for the ears.

@f1reguy587 Год назад

Ive looked into this over the years, the idea of the ducted fan particularly for private use wont work out untill the military adopt the R+D costs, you run higher more efficient RPM in the ducted but you lack the lift potential since you require a pretty large ducted fan, this is mostly noticed when you want to lift weight and of course deal with wind, gyros have come a long way and polymers have also, which makes these machines very much more possible, but its just not taking off as a venture until the powerplant requirement and versatility for one of these exists. The operating costs even of a basic helicopter would dwarf this concept, even if it is better in some ways.

@trionghost 11 месяцев назад

It works only in underload conditions 'cause in full load condition you will end up with balance T=

@KenImduaikiat 2 года назад

Well described concept. Wish there are some scientific numbers to support

@Dude_Slick Год назад

I hear ya. I can make CG models and animations too. lets see the numbers. build a prototype vehicle and fly it.

@kirtandreamrezzer Год назад

Mad scientists at work here! 🌟🌟🌟🌟🌟

@thomasadams8155 Год назад

Thanks

@balananatol1599 2 года назад

Xagon Solutions👍

@Nam.Priyaphon 2 года назад

Interesting

@shan5445 11 месяцев назад

So with the width where are people keeping these veli's when they are on the ground. On the street or on your front drive?

@KevinATJumpWorks Год назад

It surely makes sense for more classical, hover-dependent vehicles like the typical 'drone' without any wing-surfaces. However when it comes to winged aircraft, I am not convinced that these efficiency gains in hover will outweigh the high loading that comes with them. This means longer transition times and therefore more time in hover.

@nickkacures2304 2 года назад

Awesome! and informative as usual thanks. Could you think about doing a show that would look at timeline for adoption of eVTOL you know make predictions. I really like the work that Tony Seba has done personally and at Rethink X on wind,solar,batteries and electric vehicles.he made predictions that have mostly come to be and earlier than he thought. You could start with. Battery density for eVTOL Battery type and chemistry Structural batteries? Possible Future Passenger carrying capacity possibilities Distance of use limitations Personal use possibilities I guess I just would love to see an hour plus Long presentation of where we were where we are and where we are going . Hopefully not to big of an ask .

@md.moinulislam9467 2 года назад

MASHAALLAH khub valo video......

@Johny40Se7en 9 месяцев назад

Wicked stuff. Reminds me of the Ciphers on Metal Gear Solid. Also, do not take a shot everytime "adaptive ducted fan" is mentioned, or you won't be going to the ER to have your stomach pumped, you'll be going straight to the morgue. Bloody hell 😅😆😛

@mohammedalhouli7315 Год назад

The design is very human..very easy to use

@ralphkilcup566 Год назад

It's appears the new Electric Induction Fan Jet Propulsion has advanced significantly to overtake the Prop Engine but not completely replace the Prop Propulsion. I like the performance specs comparison. The real tests for this type of engine propulsion would be Operation in extreme conditions where moisture, humidity, or extreme heat and extreme cold could significantly impact Flight Performance, Range, and lift capacity.

@skenzyme81 2 года назад

Getting the weight down at an affordable price will be a real trick. Lot's of unique carbon composite components with high-precision tolerances will be EXPENSIVE.

@Yay-hovah 2 года назад

How well does a ducted fan work while landing and taking off in gusty conditions?

@grummanfanschneid Год назад

I’d luv to see this come to mkt for the public - my father worked for Grumman Aerospace - Grumman was always looking to advance both air/space travel - I’d buy 1 so sign me up - 2 people plus luggage

@mikegLXIVMM 2 года назад

Will this work for small drones?

@minerran Год назад

What about using toroidal propellers? Early research data from MIT suggests these might be even quieter and more efficient than ducted fan technologies. Marine toroidal props are already being sold. I believe this is the future, even better than ducted.

@user-jc2we4sn1i 8 месяцев назад

nice

@SmoochyRoo Год назад

Nah, another much simpler solution is to just make the ducted fans slightly larger to achieve the same efficiency and airflow goals, the increase in weight due to the increase in size would be less negligible than the weight introduced by all those mechanical parts, the overall size increase won't change the aircraft profile and footprint at all as well, and adding a few more blades to the ducted fan would also go a long way to reducing noise and helping with lift.

@powerofdreamx 2 года назад

Performance was shared at 400kw? What is performance at 50kw? Example, 4 50kw units for a quad... is this efficiency only seen at high power as the curves looked to narrow to the left.

@Macrocompassion Год назад

A full comparison between ducted fans and propellers has not been presented. The effect of propellers having lower mass means that they can be made of greater disk diameter with lower induced speed of the air at the blade (as in a helicopter rotor) and the result is less noise and greater lift or thrust. But these two answers are not the only possibilities, and it is my claim that the energy being wasted in the flow of the air behind or below both arrangements can be reduced using a centrifugal fan that works below a canopy (like on a parachute). The radial flow from this kind of fan is then blown onto the curved surface of the canopy and is directed downwards, being curved below it. This spreading and curvature of the radial flow, helps the kinetic energy to be converted into pressure energy and lifting force on the canopy itself. There will also be some suction above the inlet to the fan which will also add to the effects that the canopy provides. It is also advantageous against engine failure where the sinking speed is reduced as on a parachute, and unlike anything like as much as on an auto-rotating helicopter or drone.

@powerbuoy 2 года назад

What was the name of that fan again?

@Renjie_K Год назад

Not gonna lie i cant wait for the day someone decides to do something crazy like building something on the scale of the Dragon Assault Ship from james cameron's avatar. Obviously the proportions would be different but it would be amazing to see airbuses like this for regional transport.

@sinexityyy 2 года назад

Whats next carbon-sleeved motor like the tesla plaid curious if they could have a huge play in ev flight probably not but maybe in the future but that could be very tricky thing to design and make the machines to make it

@SMunro Год назад

I suggest a rotating cylinder using magnus effect for lift on each rotor arm. No blades, just the cylinder on the arm extending from the craft.

@user9b2 2 года назад

Instead of expanding the front, why not retract the exhaust? Or both - to reduce the movement requirements - could be easier to manage ? Think stargate Iris, rotate to make smaller or larger openings 😎

@newpapyrus 11 месяцев назад

Using a reformed methanol fuel cell/battery, ducted fan aircraft could have access to substantially more power and range.

@115_vaibhavidangre4 Год назад

can someone tell me how the flaps and duct are connected to each other?

@juraji0 Год назад

Never made sense to me, how is the ducted fan more efficient and simultaneously needs more power to hover ... am I wrong to think that a higher efficiency system would need less energy for a given amount of thrust ?

@p4inmaker 2 года назад

Cool idea, not sure if the increase in complexity is worth it.

@ThatBoomerDude56 2 года назад

Probably not.

@markchapman3457 Год назад

It would be interesting to see how adaptive ducted fan would work with toroidal propellers

@FunnyHaHa420 Год назад

I was thinking the same.

@mrsuper7484 9 месяцев назад

Wouldn’t really work as the purpose of the torroid is reduce turbulence at the tips or what would be a standard propeller. A duct does the same thing by being a physical barrier to reduce wingtip turbulence.

@nojukuramu 2 года назад

imagine multiple evtol flying in to your city as Police Patrol constantly observing the streets.

@estoupaa 2 года назад

Why they don't make it hybrid? Eletric take off and landing. Gas powered cruize mode. It could fly for much longer time than using bateries.

@Cavewars 2 года назад

EVTOL vehicles are the future

@tklearning4428 2 года назад

Ikr ✨

@LanaaAmor 2 года назад

nope

@forloop7713 2 года назад

Aka helicopter

@Vinzmannn 2 года назад

If battery technology improves, yes

@jshand8557 2 года назад

Not unless you are a billionaire.

@JinKee 2 года назад

hexagons are the bestagons

@lailaahmed3650 2 года назад

I also Design a vtol craft with this like technology

@foadrightnow5725 2 года назад

Why don't they incorporate micro gas turbines to assist in VTOL? Even if just a couple of them.

@tsclly2377 Год назад

Forget the stators, as it is better to use a counter rotating independently driven lower set of propellers as to redundancy of having power and it is better to have a simpler airflow limiting / compressing design by having a bigger center that goes in and out than to increase the ring with a complex clunky multi faceted expanding cone.. it is the high speed that one wants to decrease the air flow into the fan as this is where power requirements start getting exceedingly high as speed increases.. and at the higher altitudes increasing the pressure inside the duct keeps the fan more optimized.. I've done the math years ago and solidity is what you want with fans as you can get realistically a 12% increase in efficiency, everything else takes more power as one is accelerating a mass of air to higher velocities... so the start of any exercise in this is the force that you engine(s) or motor(s) can deliver.. there is no 'free lunch'.

@C-o-r-y Год назад

Create John Searl effect generator for vehicles so we don’t ever have to charge again. Ducted Searl effect fan generators.

@lordserj1801 Год назад

Airspeeder flying car & Jaguar Gen 3 . A new era, electric cars, flying cars, technologies that we should not stop at, let it always burn, only the green light ...

@Txepetxcc 2 года назад

So why exactly would one want to retract the ducted fan if it works better expanded ?

@victordiazcaballero9349 2 года назад

I don't really understand the disadvantage of the consumption of more power for hover in ducted fans. If I am not wrong, ducted fans needs less power to hover than open rotors, since the losses produced by tip vortex are avoided

@eVTOLinnovation 2 года назад

In general the disk load is greater in Ducted fans. Ducting a large propeller is difficult

@nickoutram6939 10 месяцев назад

The new Gen4 eVTOL racers have a bi-engine ducted fan arrangement (and a 1MW hydrogen powered generator). Their ducts are optimised for speed though, not adaptive.

@odeltarkhan3033 2 года назад

What is the price please?

@dezmondweghe2588 6 месяцев назад

Surely the next 'up-grade' should be 'Toroidal' propellers/fans' for an even larger increase in thrust & efficiency ?? >>

@eliwolf4172 2 года назад

For knowledge

@andrzejmatwijenko7311 Год назад

6:50 the private drones in the city have more or less realistic vision but transporting a container maybe only empty because fully loaded is weighing more than 20 tons plus batteries for drones so it's just inefficient and traditional forklifts also can be electric and they're just safer to use so it's just a bat idea to use drones for containers.

@ronplatt6008 Год назад

How about toroidal props and put them in ducts

@gryn_ghoul 2 года назад

Ducted eVTOL transportation for civilian movement is cool. The application for transportation and movement of shipping containers is flat out stupid however. Shipping freight cranes are large and seemingly more expensive, however they are safer to operate and maintain. I believe that transportation of shipping containers should be relegated to trains however, utilizing train tracks to run directly into freight yards and unloading into warehouses that are built along the rail system. From the warehouse, companies can utilize either shipping vans, or upgrade to drone shipment for more efficiency. housing areas should be built around such infrastructure to minimize the possibility of a drone going beyond its signal range and losing battery power. Building amenities around warehouses can also make the movement of goods more efficient and reduce fuel/power consumption. Instead of tall skyscrapers with offices in a city center, building down can unearth history and maximize work space while clearing airspace for movement. So imagine a city built underground, warehouses on top, a shopping mall built around it, housing built around that, air shipping within close proximity for fast and efficient delivery, and underground networks connecting all infrastructure like a web, preventing nature from being destroyed by the construction and expansion of more roads and railways. BAM! civic development and planning is easy!

@johnroutledge9220 2 года назад

I assumed that image referred to an air-crane, not a shipping container transport as such. That would be short range, and could open up a lot of flexibility for loading and unloading containers, especially from small islands. A big ship might not even have to stop or slow down while picking up or dropping off a shipping container or two from a 'micro port' that is little more than a car park. Even in a large port it would allow a ship to unload a few containers and then leave, rather than waiting for a berth to become available, and getting into and out of that berth.

@MasterIvo Год назад

Instead of a propellor, I would love to see the development of an impellor motor, based on creating a vacuum where the air can flow into, with the mayor benefit of creating a (natural) vortex instead of turbulence.

@Dude_Slick Год назад

"I would love to see the development of a impeller motor, based on creating a vacuum " Well then roll up your sleeves and get to work.

@MasterIvo Год назад

@@Dude_Slick my comment was removed...

@Dude_Slick Год назад

@@MasterIvo what comment?

@sk3143 8 месяцев назад

Orca aircraft!!

@hidden4209 2 года назад

Now add thurst vectoring... 😉

@monkeysfromvenus 2 года назад

Those battery powered cargo container drones look kind of ridiculous. Wouldn't running them with traditional engines be a lot more feasible?

@foxtrotunit1269 Год назад

Wish the throat could be inflatable, so when deployed it pops out and directs air. When deflated it stows away automatically under spring/tendon pressure. Less parts, less problems.

@SurvivethePoleShift Год назад

Why is Noise Cancellation Theory not put to more use....where noise is cancelled out by harmonics.

@UncleSpuddy 2 года назад

If only we could get better batteries. Electric vehicles could progress so much.

@canofpulp 2 года назад

But the added cost and complexity won't pay off unless your hovering lots

@user-ol1qm9ey7g Год назад

เหมือนพวกคุณจะหาทางออกให้กับพลังงานไฟฟ้าใช่มันต้องมีแบตเตอรี่มากกว่า 1 แบบ

@dagdunesbury8570 2 года назад

TeTra’s eVTOL ftw...BlackFly eVTOL close 2nd

@robsonpereira3001 2 года назад

HAPPY HAPPY FOR FUTURE ...TRANSPORTATION !!!! 🇧🇷🇧🇷🇧🇷🇧🇷🇧🇷🚁🛩✈️🚀

@LordLab 11 месяцев назад

700kw motor ?! this is like 940 horse power

@yuniorprades3023 Год назад

Watching eagles flying they use a ducted fun shape when they flying.exactly like a Hart shape so yes ducted fan is efficient .there is a few things must solve but yes win blow faster throght

@user-ib3ke5ee4u Год назад

simply ducted and multiple layered blades increases air-flows efficiently.

@xevious2501 Год назад

@jonathanblanckaert 2 года назад

Why do ducts on fpv drones reduce efficiency?

@itsthorondil7608 2 года назад

Most FPV drones are more akin to a multirotor helicopter. The duct not only adds weight, but drag. It also blocks a large percentage of the airflow coming towards the prop when flying at an angle, as such drones often do. Think of an EDF Jet. The airflow is almost always coming straight into the inlet. In a drone, that is rarely, if ever the case. So it just doesn't make sense.

@jonathanblanckaert 2 года назад

@@itsthorondil7608 yeah i noticed that, so it thought on big VTOLs it would also introduce drag