Flying with four giant drone motors (ducted propeller paramotor)

[@michaelmagill189]

Hi Peter. It's been almost 30 years ago, but I did a lot of work on ducted fans. In those days I didn't have electrics so I was using weedeater motors. 6 of them. Talk about loud. I removed the governors and was able to spin them to 10 grand. Between the noise and flying debris the neighbors forced me to stop and my test rig was just too big and complex to move around easily. I actually set it up in three different places but complaints killed the project. At any rate, my experience determined that a 5 bladed fan with straight paddle blades set up so that the fans were about 1/8 inch apart ( fans to middle engines front and rear ) produced the highest thrust. I was able to get almost 150 lbs with a 24 inch diameter fan. Yes, tip clearance was critical. I wound up using a three axis mount ( like a y ) as torsional flex in the mount would allow the blades to impact each other. The legs were airfoil shaped and pitched to shape the airflow in and out to minimize spiraling flow and torque effect. The intersection of the legs wiht the duct were about 4:1 width to the inner points at the nacelles. These intersections were CRITICAL. Any disruption of flow was seriously magnified downstream. They had to meet at a near perfect 90 degrees and radii at the intersections worked best around 3/32 in. I was experimenting with variable pitch blades to reduce spooling times when I quit doing research due to neighbors. This is where I really had problems with blade contact leading to some rather spectacular explosions and disintegrations. I had lots of vhs video tape of these experiments but a house fire destroyed them. I've often wished I could start back and have specifically thought that modern high output electrics were the key. Unfortunately I am now retired and disabled so I haven't got the funds or the stamina to persue this research any more. If you would like to pick my brain and check into my work let me know. I'd get a big kick out of working with a bright young person such as you.

[@David_Wolfe]

I finally made it in to a Peter Sripol video!!!! I was the orange blob ahead of his first launch taking pictures. Peter, my favorite part that was not on video was seeing how excited you were to find the broken spars. That was great. Awesome machine you made, I wanna fly it next time. Let me know when were are flying in Nati. You rock brother!

[@jd2161]

You die or lose your fingers flying his machine and your family sues him. I wouldn't let anyone else fly it

[@ElectroBOOM]

Very nice! I wonder, is the thrust of coaxial motors the same as two separate motors?

[@cortburris9526]

13:20 nope.

[@raghavdixit6832]

These questions come when you are in a hurry to write a comment for likes

[@Febloop]

hello mr electricity man

[@zak42069]

I believe they're 30% less efficient

[@SnowingNapalm]

i believe the front motors by taking on the work of pre accelerating the air made em more efficient thus the 20% extra battery left in the rear which isn't bad for saftey margin as if the front motors cut out you still have half thrust to maintain half the airspeed you had maybe just enough to maneuver a landing but then you'd glide down anyway with the parasail just a bit faster the more weight you carry and smaller wings

[@hoveringgoat8061]

I love you peter. Thanks for actually building these things most of us just talk about! I love that youre getting into paramotoring. Such an amazing sport.

[@peterlad]

I love you too Spencer.

[@saqibsultantemuri2437]

some people get naked to get fame, some people try to sing. love how peter just wants to fly and let us be a part of it.

[@ThePower1037]

Dude these bots, ironic.

[@michaelmagill189]

@@ThePower1037 you tube prostitutes is what they are. Such behavior belongs on a street corner not here but these hoes are overseas and can't be prosecuted in our courts. They know this and use it to flood our forums with their smut. Just ignore it. It won't go away. You Tube will ban Donald Trump but they won't do anything about this. Probably because they're too busy checking them for " content "

[@RogerTheJanitor]

He wants to tinker, sometimes it causes him to fly. Still just as cool!

[@teiermyler4926]

@GELAS PECAH🔞 that's ironic

[@knightshousegames]

Well I mean, with how loud his creations are, trying to sing while they're running would be useless, and I doubt he wants to be naked around those exposed propellers.....did you see what they did to that orange....?

[@antongolovko1149]

A carbon fiber rod in the trash?!?!

[@BondJFK]

engineer's trash

[@basilisk_hb7103]

Just carbon less expensive

[@Statisd2]

Your top comment

[@BlackGryph0n]

BRO!! You have no idea how exciting it is for me to see you enter my world of squishy-wings and butt-fans! If you're ever in my neck of the sand, let me know! I have some EPIC places to fly!

[@channelname5275]

Wait verifed KZbinr and no comments? Let me fix that

[@orian1427]

Wait you that dude who covered a bunch of Disney songs didn't know you did para gliding!

[@garretm.9772]

Seeing this in person was pretty cool, such an odd thing to see flying around and the noise was insane.

[@lifeononeweel3008]

What when

[@JoseSanchez-ko8gr]

In the 1980s a person made a mini helicopter that's was all the craze , easy to disassemble , yet nothing of it , the jet pack was going to just as great yet no jet pack in every home ,lol

[@billiamwilson6018]

Why does this comment have so many p0ŕň links in the replies?

[@bennigek7196]

@@billiamwilson6018 those bots have infested every youtube channel and every reply section in existence. Yet, youtube doesn't do anything about it.

[@billiamwilson6018]

@@bennigek7196 I know. It's crazy

[@jibiss123]

“Props” to you for the R and D on this. The easy comment would be just buy a moster but it’s guys like you that will invent a better bird. Nice job and nice BGD wing

[@FallLineJP]

“There is nothing more permanent than a temporary solution” (The ducts without any safety mesh) 🤣👏

[@KernsJW]

Awesome job! Those motors were huge. I have to imagine the sound and being so close to them gave people a jolt. Your duct design looked pretty good, but you could definitely squeeze out more efficiency. I like seeing how you push things to such extents. You really bring life to what others would consider grand ideas.

[@shantanupanda4212]

i feel like they would have adjusted the rod behind his neck and should have kept the parachut stings abouve those motors so that they dont have to stretch their hands always for lift up

[@DIGITALRC]

Awesome work 😎👍

[@BigAdam2050]

The more Peter I watch, the more I think "with a few chinise electronics, I too could rule the sky" Half forgetting silly sky laws.

[@john_barnett]

what are they going to do, pull you over in a police plane?

[@feelincrispy7053]

Jail time.. you’d really really have to piss some people off for jail time I’d think. Flying low and around private property you’d be hard pressed for anyone to even find out

[@Ben-mw9vz]

@@matsmann Well.. if the military uses the airspace nearby, it would be pretty wise to not fly anything near that area

[@feelincrispy7053]

@@matsmann sounds suspiciously Australian..

[@richards4219]

@@feelincrispy7053 the US had more military and prisons that anywhere else in the world. The US absolutely has the most oppressive airspace rules in rules in world.

[@eufenico]

Here's an idea. As a paraglider pilot, I always dreamed of something to gain initial altitude before moving onto soaring flight. There's towing rigs and such. But what about a big quadcopter that is worn as a backpack, then jettisoned once you are up to altitude, and it flies itself back to its home/charging station. Not the worst idea, right?

[@p39483]

That's a self-landing booster.

[@1bengrubb]

@@p39483 didn' t sapcex do that?

[@greyborg3846]

It makes me so uncomfortable that there is no screen or cage or anything preventing him from accidentally sticking a hand into the blades.

[@MauricioHernandez-de8is]

Because he is a man

[@arnoudklaren]

Classic Sripol video! Great balance between design, build and trying out, with his typical camera work, drone and music. Can't beat that!

[@rishikeshdas9495]

This guy is a national treasure.....We need more people like him🙌🙌

[@YTjndallas]

Dude. Big Balls. Crazy Balls!

[@joeteichert6821]

Nice, this gave me some ideas: 1. To get a "large pizza" while still using small motors, perhaps you could run them in series instead of in parallel, so to speak. You could either have multiple motors turning a separate single propeller shaft via gears or belts, or you could have the motors share a single shaft connected to the propeller. 2. To eliminate the torque roll from a single large propeller disc perhaps without the inefficiencies of typical counter-rotating propellers, you could have the stator and rotor of a single motor each connected to a propeller, so that there would be no net torque roll. Just some ideas I had while watching your cool video, Peter!

[@michaelmagill189]

How would you mount that. With both parts spinning there are no hard points to mount to and you definitely can't free float the props.

[@PPGGORILLA]

It was cool being a part of this and seeing it happen. Come back anytime!

[@FullTiltOn]

At This Moment Peter S. Realized: " KZbin suks! I should just go into the business of selling Electric Paramotors!"

[@brianlatham3605]

i feel like these would actually sell very well. I mean electric stuff seems to sell now

[@ChrisG1392]

That "on" chime on the speed controller brought back some memories of my RC days

[@d3vastat0r89]

The drone shots of this thing in the air are just so cool to see. I wish to see more.

[@mdfind]

On this historic day, we remember the Wright Brothers: Orville and Redenbacher, whose dreams and visions inspired generations. And now, again, one man's vision ushers in a new era of aerial travel, proving the power of imagination and intellect. The magic... of flight!

[@alexisquintana7410]

Such a fun contraption. Thanks for sharing it with us! I’ll be your test pilot again for the next version! 😜

[@5ilverstreak854]

I love that after all these years you still use music from TechnoAXE, i found out about his stuff randomly forever ago and that ended up recommending your videos to me!

[@Zt3v3]

I think you've got a hit Peter, this is the type of video that we love!

[@Maudongh]

Proud of you Guys, thank you, masya ALLAH

[@Safronov31]

Очень классно! Я тоже мечтаю о такой мастерской!

[@wayacrazy.]

Я тоже

[@gahbah274]

I'm constantly shocked by the innovation and skill this guy displays. Also, the ballsy-ness of trying out the designs himself. I wish I had even 1/2 this on tap! I don't even understand the math!

[@DetonatingD]

Idea: add some protective mesh infront of the intakes so that you wont accidentally chop up your arm if you lean a bit too far to one side

[@kafeh3300]

Oh he's thought about that I guarantee

[@leetjohnson]

He mentioned it in the video

[@DetonatingD]

@@leetjohnson yeah while commenting i heard him say it and just thought "fuck it i will post it anyway"

[@kadmow]

And in making it "finger safe", there goes any advantage of the ducting. (Swings and roundabouts)

[@ac1dre1n99]

Congrats your this close to becoming the real life vulture from Spiderman homecoming!!

[@sandrainthesky1011]

Another wild & wacky flying contraption, yay Peter!! You never disappoint!

[@plebpunk]

When strapping into your harness, you must always fasten your leg loops first, before your chest strap. Incase a gust makes you launch unexpectedly! People have lost their lives because of this. It’s more important hill launching, but needs to be done always. Safe flying

[@martintruran8469]

As an ex paragliding instructor, absolutely..... plus helmet should be on before getting in the harness. The amount of people picked up and dumped on their heads, even on flat ground, is considerable. Seen some pretty nasty injuries from it.

[@SapioiT]

It's actually better if the back propellers have 20% more battery than the front propellers, because it makes it more likely for you to safely land when the batteries of the front propellers are completely empty. You won't get much more flight time, but just enough for an emergency landing to hopefully not end bad.

[@Siphonife]

cool thing about having a wing is you don't need any thrust for it to work. As long as your above suitable ground for landing you don't need any thrust.

[@SapioiT]

​@@Siphonife So you mean the paramotor should have wings on the side of the propeller/propellers, or above and/or below the propellers? I could see a cross-shaped or T-shaped wing being added to the top and back of the current contraption, to be able to steer and glide. For only gliding, a wider (front-to-back) wing but not so long (left-to-right) wing would be useful, with steering in the back of the wing for pitch and roll, and rotating half the width (not thickness) of the wing left-right for the yaw. All of this would add more weight and complexity, but he made a plane, so he could probably turn a paramotor into something resembling a short/tiny plane.

[@nikkiofthevalley]

@@SapioiT The wing in this context is the giant half-parachute looking thing.

[@SapioiT]

@@nikkiofthevalley Oh, then it all makes a lot more sense. Thank you! While you don't need thrust for it to work, you do need velocity, otherwise you would simply stall. *Edit:* And fall. Without velocity relative to the air around you, you would stall and fall.

[@Logan4661]

@@SapioiT It's a glider, the velocity is generated by gravity, as in you trade altitude for airspeed.

[@nyk7979]

@ 12:59 I'm wondering if the fan housing could be made conical, the second fan made smaller and higher geared to alleviate the pressure build up of the first larger fan, so that you might get more thrust efficiency? I couldn't say the proper ratios but the 20% power usage difference might be a good start.

[@Ellexis]

You’re like the Myth Busters of Aerodynamics! I LOVE it! ❤️

[@thatguybrody4819]

get your battery powered flight machines Ram Air Turbines! it'll make your battery powered ultralight and paramotor powered for longer. might be an interesting challenge for the paramotor but the ultralights i bet it can make a noticeable difference 'relatively' easily.

[@toganium4175]

One day, he may actually make a real flying car.

[@thirtythreeeyes8624]

He did have the flying sleigh

[@johnbob3359]

Let s not get carried away...

[@firefly2472]

@@johnbob3359 Nah, lets drive and fly away.

[@СергейБазанов-ь8ц]

those are called airplanes

[@Remixerdheer21]

Sir , maybe you make it VTOL(vertical takeoff and landing) by makeing the propeller shaft stand on a servo that makes it go vertical or horizantal for VTOL CAPABLITIES

[@michaelmagill189]

Not enough thrust for vertical lift

[@Remixerdheer21]

@@michaelmagill189 yes sir you are right but using more power can prove it

[@BlueEyedColonizer]

Smooth out the inner duct surface area for better efficiency. Im guessing.

[@john_barnett]

wouldn't having a dimpled surface like a golf ball be a better option?

[@45035]

Outstanding shipmate. Press on. USS Kitty Hawk CV-63. Jan 1980 to July 1983. Aviator for life.

[@EJ-74]

Peter never ceases to amaze me. Well done 🔥

[@Olkv3D]

So frickin rad, man! Great job! - Have you ever considered using a large helium filled blimp, lifting body or a balloon, instead of the parafoil? Adding a 360° swivel-mount above the pilot and below the balloon would allow for some precise control over the aircraft. - That would be an awesome build to watch. 👍

[@absalomdraconis]

Honestly, while it has a bad reputation, for blimps & similar hydrogen really is the better choice, because it's massively more available than helium.

[@Olkv3D]

@@absalomdraconis helium will snuff out flame, whereas hydrogen on the other hand....

[@Irfanimamul]

hmm,,,, its a very good idea

[@MkmeOrg]

Great stuff Peter. That looked like everyone had a blast.

[@Arek_R.]

I'm assuming you used lipo batteries yes? Here's a story: When I was a kid parents didn't give me any lunch money, so I had to get some myself, I was making custom li-on battery packs to replace existing li-po for drones/planes etc. Review from one customer: Before I had to land and swap the lipos to keep flying, now I chuck that li-ion battery in and it flies, it flies, it flies... then my legs start to hurt and I just need to land the plane, not because battery goes low, but because my legs can't keep me up anymore... So you want to get most dense li-on cells and get someone to weld up a battery pack for you, it will give you at least 3x the flight time compared to lipo with the same mass. Just make sure its well built, if poorly constructed it can be more dangerous than a lipo, it will disintegrate upon impact, short connections and lit on fire.

[@phillies4eva]

Your inventions are always so spectacularly awesome! I've been waiting on a ducted electric fan paramotor for ever as it seems like a great use case for ducting. So awesome that you are the one to make it happen. Wonder if you could solve axial tilt with pid loop similar to drone controller.

[@battlingapple0460]

You know its gonna be good if its "More better" 0:19

[@D.Jay.]

Great video! Quick question what is the feasibility of a hybrid system and would that play well with the FAA limitation on Gas or is there now a gas AND battery limit?

[@dakotaknoble2556]

I haven't seen a limit on battery's but I think the gas limit is incase you catch fire. 5 gallons of gas is a smaller boom than 30 gallons

[@anonymous-mj8wb]

@@dakotaknoble2556 heh, accidental warcrime pissing off the geniva convention dropping 5 or more gallons of accidental burning fule/ napalm from the air XD

[@Leadvest]

I wonder how many batteries it would take to match the fueling limit.

[@Dauthdart]

Shame about all the bots

[@kadmow]

@@Leadvest - too many to wonder about - ie. at least 5x the weight (allowing for weight and efficiency comparison between ICE and electric motors)Li-Ion (etc) Batteries

[@swampcastle8142]

Well done sir. You are the kind of person (adventurer) that I hope my children grow up into.

[@nathand5294]

Hey Peter, my suggestion for reaching 2 million subs you should build a giant rc aircraft carrier , with working lauch catapults and arrestor wires and elevators .

[@savagex466-qt1io]

Dude your hand and all your fingers. It had more power then I thought it would. Saftey my friend we love your stuff.

[@lunarlith]

I think you just made the Satisfactory Hover Pack! The satisfactory has 2 ducts which each have coaxial propellers.

[@stonestm4197]

have you looked at the Fulcrum PowerPod?? it uses a really small ducted fan, and it seems to me more than enough, for para-motoring :)

[@MelPHILSAV]

As a Builder of small A/C ... you've got great skills and an even better Workshop!

[@WetDoggo]

You could do a up+down version of this. + Slimmer + Less heavy structure required + Lighter + Stronger - needs foam flow combiners - needs front covers - small decrease in airflow

[@michaelmagill189]

Vertical arrangements would require air to flow around the pilot with sharp changes in airflow directions reducing thrust. Ducts are very sensitive to inflow turbulence that mesh guards in front of the ducts would induce

[@WetDoggo]

@@michaelmagill189 yes that's true and it's a problem to solve or workaround. Propellers and ducts can develop quite a lot of thrust like this though. Flow combiners could be used behind the pilot, to fill the low pressure area and guide the air smoother towards the duct. With flow combiner I just mean a Chunk of reinforced foam that tapers from the pilot's rough surface area towards the space in between ducts and a bit of funneling structure towards the ducts. It's too difficult for me to describe it with words and adding to that i'm German

[@michaelmagill189]

@@WetDoggo low speed ducts want to be as short as possible. A longer duct pushes the operation toward higher speeds. Fine for airplanes but not parasails. These things want massive volumetric flow at relatively low velocity. The big advantage of coaxial fans are higher thrust from a smaller unit and elimination of torque. They suck up a lot of power for what they produce and to get any real efficiency the fans need to turn at very high speeds which creates spooling lag and slow throttle response. Just like the early jet engines just with no hot section to blow out. See my direct post on this vlog for more details on my experiments. Always fascinated by this subject.

[@notwhereyouthink]

I've said before and I'll say it again, this man is a national treasure. Oh, and a genius too!

[@nathen4021]

Awesome invention, just stay safe. Don't get yourself either severely injured or killed. This is one of the most dangerous sports. Stay safe😀

[@jasmijnariel]

Aahh great build! Reminds us at the days when every flying thing was built inside a garage!

[@farmantalent]

GReat bro Please make home made parachut 😄😍 challenge

[@twentylush]

its cool to see peter taking two lucky big fans for a flight!

[@karanjohnson5562]

I will be buying one as soon as they are in production!!! Love what you’re doing. So inspiring.

[@fabioren3336]

I watch peter's videos because many of his ideas are very interesting. Of course, his smile is very charming.

[@matthewdunstone4431]

“Oh, where are my safety glasses?” I applaud your concerns with safety, but feel you might be missing the bigger picture 🤣😂

[@JaydenLawson]

8:41 if you rotate the GoPro Max so it is parallel with the pole that it is attached to, then the pole becomes invisible, because of the Max's offset lenses, and you could get a way cooler shot... with no pole.

[@dude8098]

You have hit 2Millionen subs! Congrats 😃🥳

[@kotkot1432]

I challenge you to make a plane out of a ceiling fan.

[@ffdtower1]

Lol. Definitely an engineer. "These bolts sticking out won't hang anything..." He does amaze me with his stuff though.

[@michaelmagill189]

Don't see you doing it. It's always easier from the armchair. Ever watched doc's on development of jet engines ? Crude indeed. Bet those guys were engineers too

[@MrTacklebury]

You should add flexible solar panels to the ducts and you might extend your flight time some. We did this on my buddie's electric boat and it really helps. 8)

[@wasd132]

bro went in creative mode

[@JomasterTheSecond]

I swear, Peter is either gonna become a super *hero* or super *villain* with all the flying gadgets he's made.

[@Retrolizer]

When the world needed him most, he returned.

[@popinmo]

ive wanted to make a double ducted paramotor forever one idea i had is if you mae it so the two prop ducts fold in like wings on a butterfly

[@jwish29]

Now you're getting close to my favorite hobby, Hovercrafts. If you're looking for a project idea, electric Hovercrafts are in super infancy and it would be awesome to see your take on it.

[@sindarpeacheyeisacommie8688]

Add Jet Assisted Take-Off rockets. Everything needs more rockets.

[@BVaishnavChole]

Congratulations for 2 million Peter🎉

[@jonesmatthew7511]

Peter, so inspiring, again! Great job!

[@bigjim8088]

You make some of the coolest things fly in non conventional ways. It blows my mind though how you mickey mouse some things together. Lol. "I got duct tape where's the trash bin?" It works though. Patiently waiting for more. Good luck!

[@asylumental]

When you've refined this electric paramotor a bit more, you HAVE TO do a collaboration with Tucker Gott

[@ShadowsDML]

He was in the first video but was too heavy to take off, Judson got to fly it tho.

[@kgabris3387]

I am always entertained with this channel. Would have been lots of fun to see it become KZbin's Craziest leaf blower!

[@ederaminghi3763]

Fantastico!!!!!!👏👏👏👏👏👏👏👏 Un prodigio!!!!!! Siete de veri inventori !!!!!! Dei prodigi 👍👍👍👏

[@error.418]

Fucking finally, thank you for explaining that a ducted fan is all about really tight clearance. So many videos on here with "ducted fans" are just shrouded fans with no efficiency gain, just protection for/from the blades (which is a good thing, it just ain't a ducted fan).

[@nerys71]

Have fun, Don't Die I saw that sticker !!! she is awesome. (the foraging lady who always says that)

[@jesusbuenrostro9946]

R E S P E T A B L E 🇲🇽🔥

[@toast_cat2258]

Finally something cool in this year

[@iOSPro]

This is the most creative invention ever

[@That_Chemist]

This is so awesome

[@kennethsommer]

What about two big dyson fans? The thrust from the bladeless design has more thrust than fans with blades

[@michaelmagill189]

You are confusing thrust with acceleration. High velocity airflow does not equate to high thrust. Otherwise we could fly with a backpack blower. High velocity is only relevant at jet speeds not low and slow. It may be possible to fly with high velocity fans but you'd have to run like hell for a long way to get airborne. Check out Jim Bede's BD 5 j

[@GeekGarageDK]

would love to see a single prop version with variable transmission like they use in scooters. This way you could have a smaller motor running a bigger prop an have a longer flight time. this way you only adjust how fast it should tension with the rollers. So take a normal fuel powered setup, replace the engine with a smaller electric engine and a variable transmission and see how it goes-

[@All4Grogg]

The differences in electric and internal combustion power delivery deletes the requirement for a variable transmission in nearly all use cases.

[@Tommyflies]

Nice. Fun to see all my paramotor friends flying in one of you vids

[@Kyle.Mooney]

I love the new toy 😍 Can’t wait for the next adventure dude! See you soon!

[@StardomSeeker]

My man went from building drones to BECOMING the drone

[@Veymock-who]

The real Gyro Gearloose!! Very nice!!

[@ericrisinger1241]

You could use the fan blades to cut away at the foam like some cursed drill press to ensure a perfect fit with tiny clearances. F1 cars do this with the floor of the car using magnesium to ensure they were as close to the ground as possible by scraping away any material that touched, leaving only a perfectly shaped floor

[@michaelterry9257]

Another trick I've seen is to make a groove or couterbore from the back side into the wall of the duct to kinda trick the clearance to the wall. I'm not sure how efficient it is but it would be pretty cool to see it tested out on your stuff

[@Theeddy1000]

You should try and make one a Model airplane fly, like a 1:42 scale airfix model for example

[@noahgeerdink5144]

If you where to make the propellors twice as big, would you be able te reduce the rpm and make it quieter?

[@FallLineJP]

Awesome project! Would it be better to have both motors in the same duct rotating in the same direction? And have the two ducts counter-rotating wrt each other? You’d probably need to reinforce the structure to deal with the extra torque, but might bet much cleaner airflow through the ducts (and quieter too) 🤓

[@absalomdraconis]

It's better for the rotors within a single duct to rotate in opposite directions to each other- that way you can maximize thrust.

[@Dzazter]

Dog looks like, 'This is the one that's going to cause me to stop getting fed'.

[@beavismount]

You look like the Icarus jetpack guy from Quake 2. Great work with your latest hobby-built aircraft!