The F1 brake explanation is out dated. Since 2014, F1 uses brake by wire with load cells and a computer controller to balance rear braking with energy harvesting.

@jcn115

Ай бұрын

I was going to say the same thing.

@JoshuaPlays99

Ай бұрын

True, what he explained about the effort required to apply the brakes is still true however.

@baileyharrison1030

26 күн бұрын

@@JoshuaPlays99What advantages do you get from artificially requiring a large amount of force on the pedal to brake? More precise control?

@JoshuaPlays99

26 күн бұрын

@baileyharrison1030 far more precise control, and also remember they can pull up to 6g on deceleration. If the pedal was too soft they wouldnt be able to modulate it as easily. They dont actually need to press that insanely hard because the gforces assist them in pressing the pedal.

@jeremyfoster23

11 күн бұрын

Don’t they use a hybrid braking system with bbw in conjunction with standard braking

It's actually very easy to decelerate within those parameters, if you aren't concerned with the condition of the vehicle afterwards... ask any bridge abutment.

@TheRock2988r

3 күн бұрын

Jeremy Clarkson said it best “speed has never killed anyone. Suddenly becoming stationary, that’s what gets you.”

1:47… F1 drivers adjust their brake bias multiple times per lap. And they actually only run a front bias on 1 or 2 turns per track (hair pins or very tight turns like that). Most drivers actually use a slight rear brake bias most of the time, a rear bias actually helps slow the car faster than a front bias, it’s easier on the front tires, better for weight transfer, helps with rotation, and lastly helps with trail braking. I only know this because I’m a racing (and F1) nerd, grew up at the race track following dad around on his race weekends, and spent a handful of years karting and 4 years in SCCA and club racing (Formula Ford, spec Miata, group G in a Porsche 993 race car, and one season in a Porsche GT3 Cup Car).

@cjsawinski

Ай бұрын

9:38… the Hans device helps with this a lot! With the Hans your head can only move forward about an inch (assuming you have it set up correctly), and looking side to side you can only turn your head a couple on inches. Makes checking your mirrors a real pain. But it is nice to feel it catching your head under braking.

@-aid4084

23 күн бұрын

The brake bias ratio is super dependant on the wheel width, tire pressures, tire compound, the suspension, the sway bars, and the chassis itself. If you just slap a certian ratio on any car, either the front brakes or the rear brakes will be at their limit while the other isn't braking as hard as it can be. The scenario in which using a high rear brake bias would obviously be with massive rear tires and stiff suspension, so not much weight gets transferred to the front tires, maybe even with a ton of downforce on the rear too Road cars generally do have too much front brake bias, but that's just a safety thing because the average driver can't correct oversteer that well. Tldr, it's unsafe and sometimes un-wise to have a rear brake bias in most cars, because like too much front brake bias, you aren't braking to the fullest but you get the added instability. (A little is a good thing, any more and that's asking for trouble)

In 2019 I watched the German at the Track. Even the 'little' breaking zone for the Sachskurve was pretty insane. They came in easily 100kph faster than the Porsche Cup running just before, and still applied the brakes 40-50m later. Keep up the good work :)

HOLD MY BEER ILL TRY

@MangoIsLove55

Ай бұрын

Inform me when its done

@TheSimRacingHub.

Ай бұрын

@@MangoIsLove55he managed it check the news

@MangoIsLove55

Ай бұрын

TONIGHT ON SMNN

@e1dsd720

Ай бұрын

you have a car that can go 320km/h? Respect lol

@PaiTrades

Ай бұрын

How many bottles did you drink 😅

1:09 700Gs???? You would cease to exist

@bastordd

Ай бұрын

700Gs 😂😂😂😂

@avint247

Ай бұрын

700Gs😂😂😂. The most F1 driver experience Gs in race is around 5gs. Verstappen silverstone impact arounds 21gs. 700gs means nothing left of the cars and you wont find any human remains maybe.😂

@DMalek

Ай бұрын

Bro, chill, you can hear in his voice it was an exaggeration to amplify the insane speeds an F1 car can go in curves and turns.

@Hamisxa

29 күн бұрын

@@avint247 it was 51g i think bro

@JJW-fg1zp

26 күн бұрын

Yea idk what's wrong with him.

I have a concrete wall that argues it can stop something going 200mph in less than a second. Are you from Ohio? That reference to Millennium Force is really... specific.

As you say, it is possible to make an F1 car brake more effectively than current regulations allow but at that point we're pretty much approaching the limits of human endurance. I remember Alex Zanardi's second stint in F1 with Williams back in the late 90's: he was struggling to adjust to such an extent that the team gave him steel brakes at one race - with a weight penalty of 1kg per wheel. 👀

@likilike501

Ай бұрын

F1 drivers probably could still do it. Depends how many times and there could be a risk of injury of course. Based on how quickly they would be braking it could range from minor to serious injury of course. I would really like to know how far in this case can human body trained for this go. To be honest in case they would be braking this hard only while driving straight they could sustain it for the entire race i think. When the braking force would go too high even on straights the only option i can think of would be to literaly rotate entire cockpit by 180 degrees. In the past army was testing human limits for G-forces. Humans can handle a lot more G-forces if they are facing back first. That is also why flight attendants on planes have seats facing backwards. They have higher chance of survival this way. People are able to survive a LOT of G-forces in a straight line. Example: Pilot John Stapp Quote from wikipedia: By riding the decelerator sled, in his 29th and last ride at Holloman Air Force Base in New Mexico, Stapp demonstrated that a human can withstand at least 46.2 g (in the forward position, with adequate harnessing). This is the highest known acceleration voluntarily encountered by a human, set on December 10, 1954.[7][8] Stapp reached a speed of 632 mph (1,017 km/h), which broke the land speed record and made him the fastest man on Earth.

@Jasongilliar

Ай бұрын

I mean yeah f1 driver could probably do it. But only for qualyfing. Lets look back at qatar. The tyres didnt last as long as expected so the race direction told the teams that they need to ptt every 18laps. That stints where so short that the drivers didnt needed to watch after the tyres, they could just Drive qualyfing pace the whole Race. Ocon vomitted at lap 15, stroll blacked out during highspeed corners and logan needed to stop because he also had Problems with sickness this weekend who wasnt from f1. So if f1 drivers doesnt Drive +6 secounds slower like usual to watch after the tyres to go the distance, than its borderline suicidal to race a complete race. Like seriously suicidal if we pull Up to spa monaco jeddah vegas or singapore who are one of the most Dangerous tracks we visit. If we had the rule there than oh dear. I know Qatar is a highspeed track so yeah but if they say the vomit at lap 15 of 50 than even on thouse tracks (who arent slow speed only monaco) are to dangerouse. Monaco is so hard on your mind if you blackout at lap 50 of 80 your instantly in the wall maybe with full speed. Singapore is hot and a street track like monaco. Jeddah is the fastest street track of the world with lots of blind corners, and Spa killed drivers in 2023 and 2019. So i love it when we break track records Like in jeddah. But i think we should stay at the speed we are. I think we are at the max with what a human can do. Its just sad how many ppl dont see it and say its just driving cars. And that football is harder than f1 or just stupid things like, well even i can drive this blabla

So the real reason we can't brake faster is because we would literally kill the driver if formula 1 decelerated faster

@konwershp89

Ай бұрын

No, not really, you would have to hold that breaking for longer time when it's 2-3s max it's like a small crash and they still pull a lot of g's while breaking but it's not enough to be dangerous in length and force either

There is a guy on KZread, that engineered an RC car with huge amounts of downforce. At the moment he's at 10g peak deceleration at 70mph and thats with Aero developed at home. So without rules, an actual F1 team should be able to achieve pretty staggering deceleration values.

@dickfitzwelliner2807

Ай бұрын

A British kid with an old school mini Cooper? I forget his name but he makes up a lot of rc stuff that's pretty cool

@fabianrudzewski9027

Ай бұрын

@@dickfitzwelliner2807 indeterminate design and his RC Hypercar project. No idea how he looks, can't remember that he's ever been Infront of the cam, only voiceover.

@RNA0ROGER

Ай бұрын

A combo of active aero and well designed tyers, the stopping power would be strong enough to cause the drivers to pass out.

@fabianrudzewski9027

Ай бұрын

@@RNA0ROGER intermediate design didn't even need active aero. He's "just" got really good fixed one and gets 10g peak deceleration at 110kmh.

@RNA0ROGER

Ай бұрын

@@fabianrudzewski9027 Active would help below 110

Besides the human strength the other major limiting factor on braking is grip. The brakes only need to be as strong as the maximum available grip. And adding more grip to decrease the braking distance comes with a lot of trade offs. Either in terms of added rolling resistance, increased aerodynamic drag, rate of tire degradation etc. The difficulty in making brakes for racing isn't their strength but rather their durability and consistency.

No abs actually stops faster on dirt as rolling prevents the tires from digging or skidding which uses more than rolling grip. Try it, it's one of the first things you learn in offroad racing and even just riding off road.

@stromlo

Ай бұрын

Fun anecdote: Years ago some friends and I went roadtripping in a normal modern-ish car. We somehow got into a rural area with unpaved roads that seemed like wet clay surface. We have a video of driving at (iirc) 20kph, then applying brakes (with ABS kicking in). The car pretty much just went on as if I wasn't braking. We did that a couple of times for fun then slowly tried to get back to tar roads...

@alskooper3319

Ай бұрын

Total PIA with ABS when four wheeling or driving unimproved roads. Unsafe! I’d love a switch to disable ABS for those situations.

@deimosphob

Ай бұрын

@@alskooper3319 lil tip, you can wire a switch or just unplug one of your wheel speed sensors, should work just the same as it should immediately throw a code and disable vsc and abs.

@hybrid.roodragon1226

19 күн бұрын

Lesson to be learned is at lower speeds with heavier machines less abs is needed on looser matterials unless you are not trying to sink in and get stuck

Yup, I went to the Long Beach Grand Prix last year and was standing at the inside of a 90 degree left turn. Most cars took that turn so fast it lifted the front left wheel off the ground and I saw one guy apparently forget about the turn and went straight. Watching him hit the brakes and stop before hitting the barricade was amazing

Excellent video. One small point about the lighter weight of carbon brakes, is that it's unsprung weight, so very important from a suspension POV. Also less kinetic energy in the rotation of the wheels which also helps braking.

Awesome video! Really enjoyed watching it!

It literally shakes the ground. I got to see an F1 race in Indianapolis in the early 2000's and the braking zone for turn 1 was the best place to watch. The entire area smelled like a metal shop when someone has been grinding steel.

Another great showing of the Brakes. Lewis Hamilton Q3 Qualifying Highlights Spa 2020

"Not always" rotating wheels stop faster. On loose pavement, eg. gravel road, or snow, where braking distance can be shorter with blocked wheels due gravel/snow building up in front of blocked wheel

Everyone always talks about the discs and never the pads when they discuss braking, but the pads are actually the true heros. With the discs the friction is spread over the entire surface of the disc, so at any one time only the fraction of the disc that is in contact with the pad is experiencing friction, and it has a large mass to distribute the heat. But the pads experience 100% of the friction on their surface 100% of the time during braking, and they have to absorb just as much heat while being a tiny fraction of the size of the disc and while not having any nice vents on them to help cool them down. The pads are way more impressive IMO.

Correct me if I'm wrong, but by adding 50 lbs you were already simulating 6g. You have 10 lbs of head and an additional 50 lbs of weight. So the required 60 lbs in total.

@paradiselost9946

26 күн бұрын

yeah yeah, he missed that. but then theres the helmet as well...

Went to the Montreal GP back in 2010. Our seats were right in the braking zone before the hairpin and it was amazing.

F1 drivers heads are tethered to the chasis, this stops the head popping forward. The sideways motion is what they really work on

To your point that to make the fastest braking F1 car you would throw ABS on it to improve braking performance. As a former racing driver I would like to add that good drivers, that now their car well, will definitely out-brake ABS. Braking with the highest possible pressure input without locking up will give you better braking performance than just slamming on a full emergency break and let ABS do the work. When ABS is applied there is still quite a bit of tire locking going on, ABS just makes the brakes lock and release in very short intervals. ABS is a safety solution for regular divers and not a tool to improve braking performance in racing for professionals.

3:22 Cast iron is actually a very poor conductor of heat, as far as metals go. It’s its high thermal mass that makes it useful: it _holds_ lots of heat.

What an incredibly informative video 👏

thanks for the great explanation love it

It's the tires

Great video keep going

great vid very imformative

The head thing at some gyms can take whatever you put on the spindle up to about 8 inches of plates. Seen dudes do the stack. Remember one crazy guy with traps that resembled a towel rolled up under his shirt across his shoulders. Always had to wait for him, he did a few short sets but hogged equipment resting.

Another factor is the track rips apart if you brake more. Shanghai already has big ridges in the braking zone.

They can slow down from 300kph to 100kph faster than they can go from 100kph to a stop. Of course all their ability to brake is about the traction on the ground and the higher the speed, the more downforce, the more they can brake. Turn 1 of Monza is mighty, but it's also their "worst" braking performance demonstration, because these cars are in the lowest downforce trim. Normally at other circuits, they can brake with even higher G. But what makes Monza's turn 1 the most fascinating is because the delta between the top speed and the minimum speed needed to make the chicane is the highest of all circuits

Great video!

I saw this in Austin in 2021. The turn 12 grandstand was pretty empty on Friday and Saturday so I floated around a bit and on one side of the grandstand the car flies right past you while on the other end it just felt like watching your mom pull out of the driveway and up the street.

Awesome video

No matter your brake is, if your tires can't keep up, you'll just lock it and going even longer. For normal road conditions, it's much better to invest on better tire. Stay safe on the road, people.

Good content on brakes.

Rotating tires will always stop faster than tires skidding on the surface. Snow: "Hold my beer"

@szymoniak75

16 күн бұрын

dirt and gravel especially

Ok ok....... I'm a subscriber now. Good work.

You're right, it's not all just about 0-60. There's also comfort (EVs excel in that as well) But feats like braking from 200-0 in 3 seconds isn't something that's for the EV vs. ICE discussion, it's for general engineering that should be optimised

Best F1 channel on KZread

Don’t forget that the main limiting factor in breaking (or accelerating) is ultimately traction. That means the tires are the most importantly part of the braking system in any car. Never cheap out on your tires, folks.

Love that you went above and beyond to simulate withstanding 5Gs to prove a point, great videos as always.

That was an amazing intro.

1:09 700g, I think not, that would be the equivalent of an acceleration/deceleration of 6867ms-^2 and equivalent to a stopping time of 6.5 ms from a speed of 100MPH exerting a force on a person of mass 100kg of ~687kN, i.e. the equivalent of crashing into a tree at 100MPH. The maximum g-force during a formula 1 has been measured at 6g cornering, which translates into a centripetal acceleration of 58.86ms-^2 or a centripetal reaction on a 100kg driver of 5.9kN.

You could have a special damper that holds the helmet from the rear (while allowing some freedom of movement). That way the damper would absorb most of the G force and the neck would not do all the work of holding the head.

Gotta respect the commitment! Hope your neck's fine!

When you said “and change” I subscribed

Formula One drivers are top tier athletes. The forces involved break weaker men.

Did I see a Gibson les Paul cherry sunburst in the background?

Bro said 700 G’s??.. 700 would turn your insides into juice. You’d be blended. Try going for 5 to 8. And 10-30 at a instant stop crash. Maybe just 50 if it’s rlly bad.

8:02 in F1, the drivers' heads are attached to the car

F1 drivers have the Hans device and the headrest to help a bit. At some point the problem is the brain itself, being pressed against the skull.

5:35 : 4,6 Megajoules = 4600 kilojoules = 1100 kcal = 20,75 oreo Cookies ~ 2 Rolls. The heat of burning 2 rolls of Oreo Cookies with your body's efficiency

it's quite easy actually - any car going 200mph can do it. provided a strong enough wall that is

they make stuff for these kinds of deceleration. Its called a wall

Having bigger wheels with wider tires and bigger discs will increase rotational mass leading to the same performance as we currently have. F1 breaking has come to a point where this is as close as it gets to stop a car in the fastest way possible. However I’m not saying it can’t be improved but having bigger wheels and discs are not the solution.

Brake on a rubberized dragster track

You could stop instantly, all you need is am assive, thick, reinforced thick wall. Well... you can stop once, that is.

I remember breaking Renault Vel Satis (European Van) from 200km/h (~124mph) to 0 is about 160 meters (from, 250 was not that effective), so literally if you see obstacle no chance to hit you will always break (not on ice), in BMW 5/7 it's different still lot of breaking power but there is a car lift force (inverse to down force) braking at 200 or 250 km/h is.... sloooooow

For the pilots HANS helps a lot against the big G forces. Maybe it helps also at breaking, not just in emergency cases.

@stromlo

Ай бұрын

Good point.

Yo was that the DVP?

8:39 the goodest doggo

It's actually fairly easy to go from 200 to 0 in 3 seconds or even less : just hit a wall.

Great video but the background music is a little too loud.

there in situation thatlocking the wheels is faster to stop then just not locking them up in gravel and lose snow the gravel will build up infront of your tire making you stop quicker but you do lose controle and thats the most importend thing abouth abs the controle part even on a dry road you will stop faster if you manage the brake your self then having abs but in a panic you will just slam the nrakes thats wy they have abs

It's hard to stop in 3 seconds. But it's easy to do so in 3 hundredths of a second.

People jumping from several stories high can stop even faster from 200 MPH than 3 seconds

Not a vehicle, but look up aircraft carrier catapult water brakes. a couple thousand pounds of shuttle going ~180mph to zero in a fraction of a second.

ABS NEVER STOP CAR FASTER IT ALLOWS YOU TO KEEP CONTROL OVER DECELERATING WEHICLE BECOUSE YOU DONT BLOCK WHEELS

if you want a really cool video on brakes, watch "driving 4 answer" video about brakes

Dude. Metal weights on a polished floor? Bet you’re renting

I wonder how fast rally cars brake

It is just Concord, not The Concord.

Dude the music in the background is hella loud. Good vid tho

How about u have a stick that inserts perpendicular to the wheel instantly destroying the wheels and stopping the car

A better explanation would be why do you have a tire in your closet? LOL

700g's?

Aren’t most brake rotors made of steel and not cast iron?

@paradiselost9946

26 күн бұрын

bikes yes, cars no. havent seen a car yet with oem steel discs...

@wendellgreenidge3362

26 күн бұрын

@@paradiselost9946 you are absolutely correct, I just looked it up

🤔 dont they have brake by wire ??

if they wear hans.. they dont care about decel lol. its the lateral . imo

If you pulled 700g's in a corner you would become part of the corner! 1:08

how does a pushup simulate racing ga. how bout just stand up and walk around

"Watching a car pull 700Gs" huh??

A rolling tire stops better? Non at all! Rolling tire doesn’t stop at all. ABS is only to keep the car steerable, not aid in stopping distance.

Crash test pilots Hold ma beer

Stopping from 200mph in 3sec is possible and already been achieved long ago. The problem is you will more likely to break your neck from that stopping power than anything else. Engineers are capable of making anything, but it is the driver itself is the bottle neck due to our nature and are not capable of handling such high G force even with assistance of HANS device. You will not break your neck but the blood in your body will rushed through your veins under those intense loads pooling in unwanted locations that can cause life altering injuries or even death and there is nothing you can do to prevent such complex problems from happening inside of the human body.

Uhm… 200-0 in 3 seconds is just over 3g average. If you just used a fan and skirts to keep the downforce at low speed that is easily possible

Hi Jonny

6G? Welcome to aerobatics, where it is very far from the limit. 4G down sitting in good seat (pull up in loops and so on) I can feel, but it is hardly noticeable, just little discomfort. 2G up (upside down, in some reverse maneuveres when you hang on belts)? Very unpleasant but bearable. 2G up + rotation? Burpable. Real maniacs fly with 8G (professional plane structure load limit is 10G), it requires special sequence planning as on 8G for more than couple of seconds you get blackout.

Impossible in under 3 seconds? Oh yeah watch this (slams into 5ft concrete wall at 200mph)

"it's impossible to stop from 200 mph in 3 seconds" I've seen dumb teenagers do it faster for less time.

Love the Red Bull flag!

Brakes are the most interesting part of a car! Important for safety and speed! Engines are boring.

interesting article on wikipeadi about g-force limits on a human body.... Eli Beeding

700Gs more like 7

Ah yes, high performance cars need high performance brakes that will never exceed 100mph throughout their life... Honestly, the people buying them won't go beyond 70mph.

Just drive to wall?

I bet 10 million (for my family) I can stop a car (speed doesn't matter) in less than 1sec.

First F1 cars weight is with driver... Everyone now have 80 kg for a driver... if your driver dont weight 80kg you need to add weight on the seat... Second, brakes is not the number 1 fact f1 cars brake so well... its all about weight tyre grip and aerodynamics...

@DumbArse

Ай бұрын

He said the second part in the video