Building the FASTEST RC F1 Car

[@Project-Air]

Download World of Warships for FREE today! wo.ws/3V46noT

[@HS92843]

Can I get it on Xbox ??

[@RekySai]

Personally I unsubscribe from KZbinrs who love to lie. F1 is a racing division.... Convoluting it into what ever you want is dumb

[@boimcpickle]

@@RekySai 💀

[@CrayCrayCrayfish72]

@@RekySai F1 also refers to the chassis on the F1 car

[@Starlite123]

Maybe a rubber skirt and tape at the bottom just to let it glide over the bumps?

[@ivanmirandawastaken]

FIND - A - TUNNEL (with a flat ceiling)

[@junatah5903]

Every tunel has a ceiling, doesn't have to be flat either.

[@sabyasachitalukdar4314]

Build a tunnel with flat ceiling

[@LordRidler]

​@@junatah5903should be flat to drive this car on the ceiling I guess

[@testpilotian3188]

@@ivanmirandawastaken just go to the London Underground on a slow day, plenty of flat tunnels there lol

[@bakerfx4968]

There’s a guy trying to do that full scale and they’re building their own track for it. Project Air should do a scaled down version lol

[@BPSspace]

James you MUST do a part 2 and see if you can get it to drive upside down! 🏎

[@thesunnynationg]

Driver 61 YT channel if you want to see someone do it for real. hasn't done it YET but preparations are running for a year now. and he is really adamant about that, he has surrounded himself with very smart F1 ppl to transform a Formula car into a specialized "upside down car". he got a big building company to build a dedicated tunnel just for that. I can't wait until he announces the date.

[@jordanliszewski6549]

He needs to have a skirt on hinges. Which is how every car now days does it.

[@foodiusmaximus]

Engineering After Hours attempted to do it 3 years ago kzbin.info/www/bejne/bHO4paFmrdVpd6csi=dqp5U67Bg5askHdB

[@BodhisattyaDutta]

and maybe add vanes to the fan to direct the thrust thus assisting in steering the vehicle 😉

[@A1pha012]

If anyone is interested in fan cars, the McMurtry Spéirling recently broke track records, proving that ground effect is very effective under the right circumstances.

[@Losthewaronemus]

I was about to start yapping about this car when I saw your comment. Clearly a man of culture, or Carwow enjoyer

[@Connor-p7d]

You can’t forget the Gordon Murray T.50 as well

[@Bholla64A9]

the t.50 uses the fan in a very different way which only produces downforce at high speed and does little to increase the actual downforce of the car. it is mostly to make the car "stand out"

[@A1pha012]

@@Losthewaronemus Bit of both 😉 But also had an interest in MyEnergi for a while.

[@Thefrogbread]

Yes

[@Urasuperstar]

From what I studied, the vaccum skirts on the bt46b were attatched to the suspension so that they'd always stay level despite the body movement.

[@promartin2093]

thats genius

[@stevezimmerman5644]

There is a BBC documentary called "Gentlemen, Raise Your Skirts". About the ground effect cars Williams had back then. No fan but shaped underfloor and the skirts were spring loaded carbon strips that could retract up and down into a slot so they could touch the track surface and follow the imperfections in the track. Check it out if you can, it's awesome if you like those old BBC doc's.

[@paulbarnett227]

I remember that! Wow - that makes me feel old 👴

[@TheBillzilla]

One of my fave quotes is from that, when Alan Jones complains about the ride quality of the car when they tried solid suspension. Frank Williams replies, "perhaps you could sit on your wallet, Alan?"

[@stevezimmerman5644]

@@TheBillzilla The most gentlemanly burn ever. They don't make them like sir Frank anymore.

[@That_guy_69]

BBC💀

[@thequesomanishere]

I believe the Chaparral 2J had its skirt mounted to the suspension, not the chassis. This way the skirt stays flat with the wheels, and doesn't move with the body. Try mounting the skirt to the ends of the suspension near the ball joints, and I bet you'll have more consistent suction and longer lasting skirts.

[@vhmakino]

estava procurando esta reposta!

[@HorilkaConsumer]

Yeah I was thinking of that! It's truly fascinating!

[@D3nn1s]

Thats true. Had to scroll much further than i thought to find this. However i doubt theres enough space since most rc cars have the wheel bearing quite deep into the rim, making it harder to access

[@hghtt1855]

Se ele colocasse borracha nas laterais em contato com o solo isso poderia ajudar no selamento com o asfalto e sem problemas com a diferença de altura

[@Enter-wl3zf]

Some suggestions: How about a skirt made from a brush? How about putting the ground effect tray on a separate set of suspensions from the main chassis? One irl example is the Lotus88 One I've been asking myself watching the video is what lead to the choice of a propeller instead of an impeller to evacuate the ground effect tray, as the latter is way better at producing a pressure difference?

[@Unapersonaconunmicroscopio]

That’s right, why a propeller instead of an impeller?

[@superbmediacontentcreator]

The brush idea is good but does add friction as it is in actual contact with the ground.

[@Guybrush1816351]

Windscreen wiper blades might be good source, have metal spine with rubber in them.

[@HAVOK_SNM]

I think thick rubber would be the best bet! Maybe a bike inner tube, or a piece of old tire!

[@Enter-wl3zf]

@@superbmediacontentcreator my reasoning would be that a brush is flexible enough to deal with rough terrain, while doing a reasonable job at blocking airflow. The brush hair would also be trimmed through usage, by contacting the ground, reducing friction and tuning the system over time. The problem with a hard barrier as we saw in the video is that once it hits the ground the wheels suddenly lose traction, which could be reduced by using a brush skirt. Some hovercraft designs use brush skirts, which is why I thought of it. Granted there they try to keep air in instead of out. edit: I'm not sure where I saw it and cant find it atm.

[@AndyFromBeaverton]

The original Lotus car had sideboards mounted on slots so they would always adjust themselves to be touching the ground. Your front skirt-board doesn't need to create a perfect seal to the ground. If it's bouncing on the ground it will be slowing your car down. Some of the F1 cars used broom bristles to create a seal.

[@RetinaBurner]

High pressure flexible 'tubular' perimeter skirt, low pressure chamber: Forget the walls, replace the skirting with something akin to a hovercraft skirt, but with the skirting pressurized to keep it inflated. I also suggest a tough material, as it will be in contact with the ground at high speeds.

[@superbmediacontentcreator]

You're right in concept but there is difficulty with this sort of thing at scale. There are just some technologies and materials that don't scale down well. This is the case with your skirting material. It is very heavy and thick and hard to reproduce at a small size and get the same robust survival enjoyed in a 1:1 environment.

[@geistmetzger]

Maybe the rubber squeegee from a wiper blade may work. Semi rigid but flexible/durable edge

[@petearundel166]

Brush strips work too.

[@Enter-wl3zf]

⁠@@petearundel166Thats what I’m thinking! :D

[@bjrn-oskarrnning2740]

I thought maybe a spring-loaded sliding door-style wall with a low friction material at the bottom might work, or just some replaceable steel bits.

[@coelhovinicius140]

It might be complicated, but the chaparral's fan car had the skirts somehow linked to the suspension so it stays in the right attitude, might help you with the consistency around the corners. There are so many details about those fan cars and active aero in general, have fun going down that rabbit hole!

[@industrialmonk]

If my memory is correct the seal was made in more than 1 over lapping section so the road contact area could be worn away then slide down to replace it. Eg had a total loss section that lowers as it's warn away.

[@Avetho]

iirc, it was also sprung so the skirts stayed in contact with the road surface.

[@kelevra558]

The issue was you locked the suspension out. You effectively cancelled out the mechanical grip of the car. In turn, you also proved the effectiveness of the design. Double edged sword so to speak. You must have heard of the McMurty special right? If not....bro.... where have you been?

[@deaddirt3214]

Mcmurty at goodwood is unreal. I thought it was fake.

[@easttennstudent]

​@@deaddirt3214same! The first time I saw it I thought the playback speed was increased. And the car kind of looks like a cartoon, just the way it's shaped.

[@kelevra558]

@@deaddirt3214 haaahahaha!!!! Never can tell these days right??? I saw this virtually PERFECT girl the other day. My initial thought was "meh....A.I. derived imagery. Nobody's that cute." Then i slapped myself in the face and nutted myself on my truck bedside because it was borderline special needs thinking.

[@NNFaNRacing]

If he could find a smoother surface the locked out suspension would work, shifter karts don't have suspension but make plenty of grip. To get it to work on asphalt, he needs to anchor the bottom of the skirt to an un-sprung part of the car, like the control arms. Alternatively he could use servo adjusted skirts and drastically stiffen the suspension. What would work best is a small pod over each wheel with ducts leading to a central fan. If the downforce is acting directly on the knuckle you don't have to run extremely stiff suspension for it to work well.

[@Rippthrough]

@@NNFaNRacing Those kart chassis are designed to twist and flex to work as the suspension, they still have suspension, it's just implemented very differently.

[@losatko]

the long awaited sequel is here

[@TeslaNick2]

I'm so glad somebody had a go at this. Really cool project. The original skirts were spring loaded strips that pushed down into the road kinda' like DC motor brushes. It always amazed me that it works at all. It's so counter intuitive to try and maintain the seal between car and road.

[@superbmediacontentcreator]

The Chaparral did this long before the F1 car you cited. The concept is valid but was outlawed because the fan throws stuff all over the following cars.

[@benkirkland5354]

Was about to say the same thing. Can-Am allowed innovations like this because F1 had too many restrictions. Once proven, F1 adopted it.

[@superbmediacontentcreator]

@@benkirkland5354 As I was growing up I cheered this and the STP turbine car both of which failed for different technical reasons. Had they foreseen the things that ultimately killed them they would have revolutionized the sector before being simply "ruled off" the tracks. I think the electric boost shows the most promise in the near term for F1 unless that like the Grid Girls it gets banned...

[@mattg5852]

As a gran turismo player, I remember having a lot of fun with this car

[@MrMagooRC]

The Jim Hall's Chaparral 2J was also closer in concept to this than the Brab, as the on the 2J had a separate snowmobile engine, so fan rotation speed wasn't a direct relation of 'main' engine speed. More consistent 'suck' across the entire speed range of the car, rather than more 'suck' at higher main enginer RPM.

[@Regular_Thomas]

I'm sure it would throw a bunch of stuff around, but because it mostly made all of its downforce from the fan system if for whatever reason the suction between the car and the track, like a big enough bump or a skirt was broken it would lose all grip and be very dangerous. Imagine it just launching mid corner straight off the track. Great system in an ideal world but potentially deadly in a real world

[@pbrod8325]

Great job!!! To overcome the weight issue - powering the fan by the differential/ an output shaft would be ideal. Might be complicated but it bet you can pull it off!

[@glumpy10]

Love to see this run on a basketball court where the floor was perfectly smooth. That would let it really corner. Seems like for the skirt, some thing pliable but durable like silicone sheet would be good. Great vid as usual!

[@aadyansharma2784]

11:52 are we just not gonna talk about how clean off a drift that was

[@ValRC1]

This is extremely sick, and you pulled it off so well! I have been thinking about doing something like this since seeing the Formula Student car from ETH Zürich use a similar approach for reaching 0-100km/h in under a second. IMO it's impressive how much extra downforce you ended up getting in a straight line on this. To improve the seal on bumpy roads, maybe you could try a 3d printed flexible TPU base with a sort of skirt around it from thin PTFE that is too long and just bends out when the car is further to the ground, but then extends once it goes more above it or over a bump?

[@solcharms]

You added the all the weight of the fan + motor and the intake for the fan behind the rear wheels. Thus, the combination of increased mass and grip biased heavily towards the rear made you unsurprisingly faster in a straight line but slower in corners. Rear always looked like it was on a pendulum. Front tires looked 'floaty', and skirt looked to be more chewed up in rear.

[@ThePippin89]

Fun fact. Gordon Murray (the designer of the BT46B fitted an aeroplanes altimeter in the cars so that it would show whether the underfloor was sealed. The drivers had a problem that the skirt would be damaged and they wouldn't know and suddenly find themselves going through a corner about 40mph quicker than they could without the ground effect and having a colossal crash. So if the altimeter was in the green they could push. If it wasn't they had to back off.

[@D3nn1s]

Thats pretty neat!

[@gglobot]

to have the best effect, you have to attache the soft part of the skirt to the suspension triangle, Like this you can keep the skirt to a constent high from the ground. The skirt can be attached on one side to the rigid part (your aluminium board). And on the other side to a bar connecting the suspension triangle ( 2 tubes can be imbricated in each other so that they can slide and allow the suspension to work)

[@thataussieaviator]

You are so inspiring for young engineers/aviators. Keep doing your thing!

[@peraltarockets]

"tea, obviously" James, engineering in the best British tradition.

[@MattTheMartian-qc6pr]

The car is bouncing because you disabled the suspension

[@AdrenalineBound]

Use some kind of soft foam as side skirt that will deform along with the road surface. So even on bumbs or on uneven surfaces there will be a seal.

[@TinMar79]

I like this concept a lot. Maybe you should try door brush seals for the skirt. First they are flexible, second durable and last you brush stones away in front of the car.

[@superbmediacontentcreator]

The problem with your idea is that the contact adds drag. What you are envisioning is a reverse hovercraft which is valid but hard to do at scale...

[@Avetho]

I think sprung segmented skirts would be best, its what Chaparral did with the 2J, and it worked beautifully. The only difficulty is doing so effectively at RC scales.

[@superbmediacontentcreator]

@@redmk3t You might want to read previous comments before bestowing us with your brilliance.

[@redmk3t]

@superbmediacontentcreator The problem with your idea is that it's NOT valid on any scale. You probably shouldn't come up with ideas

[@superbmediacontentcreator]

@@redmk3t Iditol leaving a comment that matches their personality... stupid.

[@GraphicVolcano707]

Although this might be hard to accomplish, but there was a design on the chaparral 2j regarding the side skirts. The 2j was a fan car, but had issues with maintaining proper suction. The car had a mechanism where the skirts would move up and down as it was linked to the suspension, preventing it from scraping against the track surface

[@lesternielson9280]

the small bits of debris, gravel and overall road roughness at the scale of your RC car, would be similar to trying to drive a formula car on a 4x4 off road trail. perhaps try testing again on a smoother airport runway?

[@christopping5876]

Excellent video, as always. No theatrics, unnecessary sounds or emojis. Just a logical, well edited video. Thanks. Waiting for the next one.

[@FinDroneLord]

Active suspension with this on an RC car would be awesome!!!

[@marksteps1712]

i'm an f1 nut and i know back in the day they had a semi rigid skirt that would bounce inside a receiver style channel, i wonder if you could construct something like that and try t again. despite the porpoising as soon as that fan cut off it was going straight to the scene of the accident, awesome look, need a 2.0 video

[@testpilotian3188]

The part you missed, or couldn’t replicate from the original fan car, was the skirts moved up and down inside a channel in the sidepods so that they maintained the perfect hight to the road all the time, the last time I saw one it was effectively a draft excluder bolted to a piece of plastic that sat in the channel. I’m also fairly sure they didn’t completely enclose the skirts at the front (and probably the back) of the car as that was how they drew the air in to create the vacuum. There’s no way this is practical to do on that size of car but maybe a bigger one?

[@superbmediacontentcreator]

Actually, he could have achieved this with a spring-loaded frame under the vehicle with a segmented rolling edge. The challenge as I mentioned in a previous comment is that some materials just don't scale well and many solutions add drag from their contact with the surface. Remember the aggregate in the roadway is 1:1 not scaled to the car used for testing. This naturally hampers and intrudes on any of the solutions and improvements.

[@TimInertiatic]

That sounds like the Lotus ground effect skirt solution. I've not seen the Brabham layout to be fair

[@testpilotian3188]

@@TimInertiatic they all worked on the same principle, either a sheet of plastic or one with draft excluders on the bottom.

[@testpilotian3188]

@@superbmediacontentcreator in this case, size matters then lol

[@Avetho]

@@testpilotian3188 Lol it sure does, because we know the Square-Cube law and the exponential relationship between velocity and fluid drag makes "RC Scale Speed" one of those measurements that don't mean anything. It not only affects the material properties, but the physical properties and the vehicle behavior. These RC cars also have a power to weight ratio that is immense compared to actual cars, the Traxxas Maxx V2 for example has just shy of a 1 to 1 power to weight ratio if my quick maths were right (and they may not be since I'm not full awake yet), weighing about 0.2 kilos but making 0.16 horsepower from a 6 volt, 20 amp peak draw. Edit: Actually, its likely far above a 1 to 1 power to weight, now that I think about it. Since those things supposedly draw like up to 100 amps or more, and the motor gets to see the full 4s 16 or so volts, and that's 1.6kW, which means 2.15 horsepower. On a 200 gram vehicle. That's over a 10 to 1 power to weight ratio. Come on stupid brain, work with me today! The rocks ain't rocking right right now XD

[@redjackhammer]

something i noticed when the fan abruptly stopped around the corner, was how much the car relied upon the fans downforce for turning

[@jiayanbai1979]

10:50 when i was watching there was another world of warships ad😂

[@overscalelizards]

GET IT AWAY FROM ME!!! !

[@JayL781]

I'm about 1 minute into the video I had always wondered why no one has tried to do this with an RC car 👏👍😁. I'm already loving the video 🤤

[@ChristopherKlepel]

Why can't you make your skirt out of rubber? You could even use an old bike tire inner tube.

[@ANOSEXETIORVLDIGOADKRLGOD_EXES]

i like the way you think!

[@B-SybrZaku-ThendHaloAirsofting]

Drag would be higher if it does touch the ground; could also be too heavy.

[@MrScubaduba1]

Check out Jim Hall's fan car from the early 70's. The fan was mounted horizontally which would allow greated downforce without the added ductwork.

[@geistmetzger]

The rubber squeegee from a wiper blade may have enough durability to last. It could allow for a small travel to be added back into the suspension to help with its jumpiness

[@Carrot421911]

Yeah, rubber is the way to go. Much more flexible and durable than foamboard.

[@gotbread]

it feels illegal to mention 'fan car' without mentioning the chaparral 2j

[@SwissAir112]

That drift was CLEAN👌🤤

[@mateusz1239196]

1:47 Forza Horizon road

[@chaileeportraits]

15:06 love the bangs and pops😂😂😂

[@rupertwhite7683]

Great project again! This is exactly my thought for pushing the next level of the RC car speed challenges. Down force with little drag penalty. Also hub motors to remove the drive train issues and be able to use gyro stabilised DTC to keep it straight. Tyres are the only unanswered question.

[@29pesos51]

Damn it... It's all over the screen now 😕

[@JPTulo]

😆🤣

[@Vroome942]

Tf is bro talking about 💀🤣

[@Remmes]

The skirts on F1 cars were moveable pieces slotted into the sides which would allow for the sealing over bumps. I'd love to see you build more on this idea, maybe trying more skirt materials, or even changing the fan duct shape.

[@jaqummh]

So so bad clickbait title 👍

[@NullusestMihi]

I would also like to add that on modern formula one cars, the “vacuum chamber” becomes a lot higher the closer it gets to the end of the car. I can see that your vacuum chamber is a consistent height throughout and it reduces the total amount of possible ground effect because you aren’t making the most of the available area. My suggestion is to cut a rectangle on the bottom of the chassis and raise the roof of the vacuum chamber to increase the vacuum. Another thing that I’ve read a lot on is connecting the vacuum chamber to the bottom of the suspension and replacing the foam boards with a brush material and I would like to second that idea because it is a great idea to keep the vacuum consistent. I would also like to see you use a rubber seal like the ones used for car doors and refrigerators if you have the chance. And another thing, please make the exit for the air parallel to the ground because while you are driving, the small amount of air inside the vacuum chamber is crashing against the rear wall of the chamber before getting sucked out, so might as well replace the rear wall entirely with the propeller to reduce air resistance. This will also give you more vertical space to raise the roof of the vacuum chamber even further and make the suction stronger. I hope my ideas are of use to you, and keep making awesome content!

[@christopher.knight]

For the skirt you could try some flexible rubber like a hovercraft, or perhaps some brush material like a paint brush. Try soft or hard bristles and see if there's a difference. I imagine you want something soft enough to adjust to the road surface without losing too much air pressure, although losing some air pressure might be preferable to losing traction on the tyres.

[@danielstamenov9875]

You could try to just mount the skirt part of the car to the suspension. This was, it should keep it at roughly the same height off the ground (like a car called the Chaparell 2J)

[@willwill5595]

I have been watching KZbin since it began . This is the ABSOLUTE BEST video EVER. Thank you SIR! Society needs you to be a teacher. The education system in every country needs to hire you as an online mandatory teaching lesson.

[@fiorevicidomini8220]

Very nice project! Congrats! Next step you can try to seal the bottom with 3mm thick rubber and test it on a smooth surface like a flat parking area... I'm shure you will have great results..

[@jasonh8470]

I would add some aluminum or fiberglass screening on top of the mesh which will prevent rocks or foam from bring sucked into the fan. Great first test. Looking forward to next test run.

[@Test-m2y]

1. Opens video 2. Skips to middle 3. see's a warship 4. " Thats a darn good car "

[@rustyscrewsrc]

As always, great video! Keep inspiring builders, young and old (you got me back into the hobby and building fun creations after a 30 year break)! Thanks again!

[@kmorris180]

I always enjoy your videos and having Emily's input is wonderful. The gal seems to have a good head on her shoulders. What's next? Maybe a car that turns into a plane and flies with the assistance of rocket motors?

[@yeatcatforever]

Another thing is that you should use slick tires and warm them up aswell, tires that are warmed up as in like 60 to 70 degrees for ig this size would increase traction and get better speed, acceleration and cornering.

[@fangrc3404]

Love that mini Cooper in the shed!!👍🏼✌🏼

[@karlsantos]

After watching up to 13 minutes on this amazing video I recon the low pressure false floor should be connected to the wheel carriers instead of the chassis. That would allow a softer and grippier tune of the suspension and still maintain the seal to the ground, maybe? Williams used something like that in F1 in the early 80's.

[@vilheim11]

Could you imagine racing behind someone, when the person in front of you starts sucking up debris and launching right at you. It would be like Mario kart.

[@RCLifeChoseMe]

I enjoy doing RC experiments from time to time too. Subscribed

[@Omar_ZX]

Actually one of the first fan ground effect race car tackled the issue of the seal breaking by mounting the bracket to the suspension with the wheels so that it would go up and down with the road so it can keep vacuum at all times The chaparral 2j

[@Celsian]

12:19 And that's exactly why this was banned in F1 a couple of years later. Awesome recreation, really amazing they were brave enough to try this in manned vehicles.

[@mikehaberski4596]

Glad to see you revisiting this project👍

[@jaydizzay]

@Project-Air Have a look into Chaparral's solution for rough surfaces with the 2J, basically they mounted the skirts to the suspension components so the skirts rise and fall with the wheels rather than directly to the body

[@larrytemen4789]

You should try brush for your ground affect set up. The use a bristle bush for sealing the bottom of garage doors etc. make the brush 1” thick the entire way around and that should work.

[@simmonsrenos9111]

Fantastic idea for a car, and keeping Britain tidy.....kinda cool a car that cleans the track😊 Also make the skirt from brushes.....narrow and long

[@soviut303]

You should test this in a gym or any place with polished concrete. Additionally, the skirt could probably be made out of overlapping flexible "tongues" that angle backwards and can bend when pressed down. Combat robots often use this as a flexible wheel system that's difficult to damage.

[@bfgreg1]

The rubber from a bike wheel tube might be good for the skirt since it's flexible and coulsd run along the ground without much damage.

[@newmonengineering]

Use a bicycle tube for the sealing membrane. Make the bottom slightly smaller than the top and use a Kevlar string to give the bottom a slight rigidity to it. Similar to a hovercraft design. The tube rubber can better deal with the roughness and the string on the bottom edge will coax it to maintain its shape better. Thats my suggestion for the skirt. Very decent results nonetheless.

[@geoe1856]

You could also use 6 wheels like the Tyrrell P34, March 240 Or even 8 wheels for both sides

[@justinmunro311]

I've always wanted to see someone try rims with spokes like propellers to draw air from underneath. Although you'd have to find a way to duct to the upper half because obviously the side that touches the road is stationary. But the faster you go the more vacuum, and if in an actual car could actually be used to cool brake rotors. Also I have a note to make about your skirt design. Remove the rear portion, it should actually generate more vacuum + I know it's RC but maybe sway bars?

[@Lovetheducks]

So weird I would have thought you’d have gotten the exact opposite result. Guess that is why I own car dealerships and you’re able to put your ideas into reality very cool.

[@demonic477]

when the F1 engineers were trying to make the fan cars work the best material they found for the skirt s was aluminum or Lexan . they even tried using brushes but they where a lot heavier then the other option . the chaparral 2J was the fastest with it's floating skirt that worked with arms connected to the suspension to keep the skirt tight to the road. but trying to make this work on a model car would be a nightmare .

[@myoneblackfriend3151]

I appreciate your careful scientific approach.

[@AdamBrown-r8t]

when i first heard about this formula 1 car i had some ideas of my own but testing them on a life size car was never going to be in my price range so you have given me a good idea, thanks

[@JJ_ExMachina]

An old bicycle tire inner tube, trimmed to fit, would provide a flexible and durable (enough) seal. You could sandwich layers of the rubber so that the lowest point would still be light and flexible, but still offer a certain amount of rigidity. Sort of how they do on air powered hovercrafts. Except you could form the skirts to put force straight down towards the ground, (instead of the "balloon" shape used for positive pressure),since you want a negative pressure. I am sure it would take a little experimentation to get right, but this would allow you to increase the suspension travel and ride height (to prevent bumps from causing the tires losing traction in the corners).

[@rcmortyhobbies2567]

It’s good to see engineering at work. Good stuff

[@scottlyman7427]

Try using a multiple-skirt design with the semi-rigid skirt construction. If you have 2, 3, or more layers to your skirt, you will reduce the probability venting your vacuum, as you will need all layers of the skirt to be simultaneously compromised.

[@Mr.Donkeypoo]

i saw those black industrial brushes, they are usually fairly stiff, narrow and very tight together. maybe those would seal enough for the ground effect, they would surely survive a lot longer and would be flexible aswell

[@FullMetalTuna]

@Project-Air Get some door sweeps, They're just brushes on rails for the base of doors. but they will maintain a more reliable seal without bottoming out

[@bullen5484]

You could use the rubber that seals doors to improv the skirt

[@sniperfaze2204]

if you put the air intake at an angle it will suck in more air making it go faster and give it more presssure

[@Wheelz2Zero6]

From the beginning, looking at your preview videos, I could see that the cornering test was going to be flawed because of the rocks and the uneven surface. It would be cool to see you try this again on a track surface that is smoother and figuring out the perfect ride height. Good job on the video

[@galactic_kiwi]

Stiffening the suspension so much would have countered any gains in grip around corners. For grip you need compliance over bumps, which requires a more flexible skirt material to go with it. Additionally, with a solid skirt, the wheels will jump around when the skirt is contacting the ground, causing periods of a significant loss in downforce and making control difficult. I'd suggest something like a rubber sealing strip with a hollow center, similar to what is used to seal boots/bonnets in cars.

[@BananaCreator-k1m]

I might be late by quite some time but maybe rubber on thee underside and then for the fan you could maybe link it to the motor that spins the wheels to reduce weight, therefore being faster on the corner and on the straight and maybe instead of metal underbody you could try whole chassis made out of carbon fiber or plastic. I am no engineer but I think these can help quite a lot

[@michaelcarmenaty1747]

When I saw this the only thing I could think of was Delrin. Strong with low friction. Combined with a spring (maybe like an apex seal spring from a rotary engine) would help to keep the skirt in contact with the ground. Low friction with increased longevity.

[@iblong9505]

Man this channel keeps racking up one crazy project after another

[@johnrobert2148]

If you can somehow able to attach the skirts to the wheelhubs. Make it part of the unsprung system. This would allow the skirt's ground clearance to be more consistent.

[@EmeraldDragonAirlines]

for the drag test to make it faster you could have the fan at 100% for the first 10 meters or till you get to 30km/h or till you get to full throttle/power then turn down the fan cause the ground effect will slow you down at fast speeds but help you off the line

[@rueshady]

If You ever revisit this things conside getting a flexible material like Silicon Door dust stoppers, can keep some of the small rocks and debree out of the fan intake, being sturdy enough to get some laps in, being flexible can help to mantain the vacum on uneven terrain. Sick video i'm suscribing dor more wacky Ideas

[@DarkestVampire92]

A softer skirt, like one printed from TPU or made of rubber, might help. Something that can take the impact and deform to the shape of the road, rather than bouncing the car off the wheels. Also, i beg of you, if you're already going down this path, consider adding a second set of steering wheels at the front like the famous Tyrell P34 :P It might genuinely help with cornering.

[@brendanlenane2685]

Great video. Try using a brush seal for the skirt. you can get door weather stripping.

[@mrharvest]

I like the new dynamic with your tech person. And I think you've come up against some of the same issues as model ground effect planes experience. It doesn't scale exactly the same - here your floor is comparatively bumpier which makes getting good low pressure zone much harder

[@degreeless_engineering]

I would recommend attaching the skirts to the suspension so that it moves with the suspension rather than the chassis, but this is really sweet!

[@jayraj172]

you couldve got the result you wanted on the bend only if you used a smoother surface like an inside of a building or an evenly spread out slightly adhesive surface (like in the drag races) and to prevent the tires from skidding on the smooth tiles if you intent on choosing those over the even coating of adhesive, you could get yourself some better gripping tires. Hope it helps

[@Guru1ofatl]

With Can AM cars the skirt height was controlled by the suspension via cables and rockers. This allowed the suspension to do its job while maintaining the necessary skirt clearance.

[@dustybiker9602]

might be worth trying double layered thick inertube for the skirts with no ply or foam board. should be stiff enuff to not get just sucked under. also raise the ride hight a little but restrict how low it can go so the alloy dont hit the floor. that way it shouldnt bounce so much and still get around 80 to 90% suction

[@ZetecinsideMotorsport]

I use horizontal uhmwpe strips fastened with 3M VHB double sided tape stuck to 90 degrees carbon strips, to seal the floor to the ground on my race car. We don't have electric fans, so have to rely on the low pressure generated by the floor/diffuser to pull the car down to seal against the track, which only works above 60mph. The uhmwpe strips are low friction, and easily replaced once they're worn down.