Mercedes-AMG F1 W10 EQ Power+

[zibby43]

Awesome race analysis by SomersF1, including some pretty cool technical insights (regarding brake temperature management, etc.).

http://www.somersf1.co.uk/2019/08/somer ... tical.html

[izzy]

Awesome race analysis by SomersF1, including some pretty cool technical insights (regarding brake temperature management, etc.).

http://www.somersf1.co.uk/2019/08/somer ... tical.html

Thanks. i generally have a lot of time for Matt Somerfield but there were a couple of nonsenses:

Effectively the grip that’s being generated will slow the car more effectively, meaning you can lean on this to reduce the load on the brakes.

Well it's the opposite isn't it: more grip from new tyres means you can increase the load on the brakes! Tho the amount of energy is the same so it just means they can brake later and harder for less time but the total heat energy is the same. edit or What he probably means is they can corner faster so they don't have to dissipate so much heat
and

The task at hand was made a little more difficult still for Verstappen, due to the thinner gauge tread used by Pirelli this year, as there’s less surface area on the tyre to retain heat, especially at the end of the tyres life when staying in the operating window is even more critical.

The surface area is exactly the same obviously Matt! It gets harder to keep them alive because there's less movement within the material generating heat, and more importantly it's easier to wear through the 3mm grip layer and end up on the inner coating.

Just goes to show that, like Scarbs and the others, if F1 journos could do F1 engineering they'd be doing it Plus they have deadlines. But it's a good read anyway and like him I can't wait for Spa

[PhillipM]

Thanks. i generally have a lot of time for Matt Somerfield but there were a couple of nonsenses:

Effectively the grip that’s being generated will slow the car more effectively, meaning you can lean on this to reduce the load on the brakes.

Well it's the opposite isn't it: more grip from new tyres means you can increase the load on the brakes! Tho the amount of energy is the same so it just means they can brake later and harder for less time but the total heat energy is the same.

The heat load is lower because your arrival speeds are similar but your cornering speeds are higher - so you scrub less energy off, also because you're braking in a shorter interval you see higher peak interface temps (which dissipate quicker to radiation) versus brake core temperatures.
People who are late and hard on the brakes are actually generally easier on brakes than early, long brake events.

[GPR-A]

Link -> Mercedes: 18 more horses from the new gasoline molecules

The Mercedes in Hungary used a new fuel to vitaminize the Phase 2 power unit that debuted in Canada, but which had not given the impression of being the most powerful engine in the Circus, punctually dominated by the 6-cylinder Ferrari.

According to the rumors that leaked from Brixworth the contribution of the new petrol would have been of 18 horses: an impressive quality leap, which is worth much more than an engine development, because obtained only with chemical components and without requiring intervention on the mechanics.

It seems that the very secret molecules that make up this new fuel are the result of a collaboration between Petronas and a small German laboratory that has developed a new synthetic gasoline perfectly in line with the FIA ​​regulatory requirements, but capable of a distinct calorific value higher.

[zibby43]

Awesome race analysis by SomersF1, including some pretty cool technical insights (regarding brake temperature management, etc.).

http://www.somersf1.co.uk/2019/08/somer ... tical.html

Thanks. i generally have a lot of time for Matt Somerfield but there were a couple of nonsenses:

Well it's the opposite isn't it: more grip from new tyres means you can increase the load on the brakes! Tho the amount of energy is the same so it just means they can brake later and harder for less time but the total heat energy is the same. edit or What he probably means is they can corner faster so they don't have to dissipate so much . . .

Just goes to show that, like Scarbs and the others, if F1 journos could do F1 engineering they'd be doing it Plus they have deadlines. But it's a good read anyway and like him I can't wait for Spa

Regarding the brakes/tires point, was he referring to the fact that a fresh tire has more bite/grip? Better grip means better and more efficient braking performance. That has to help with managing the temps, as sliding around on older, slicker rubber often requires additional braking input.

Furthermore, wouldn't the newer, stickier tires help with lifting and coasting (higher rolling resistance of the new rubber working in conjunction with the aero drag being generated when lifting off the throttle) - a strategy that Hamilton was doing frequently in order to help manage the brake temps?

[digitalrurouni]

Dumb question but does super grippy tires generally get associated with higher rolling resistance? I was under the impression grip only comes into play when there's lateral and longitudinal forces ie brsking and acceleration loads being placed on the tire.

[Jolle]

Dumb question but does super grippy tires generally get associated with higher rolling resistance? I was under the impression grip only comes into play when there's lateral and longitudinal forces ie brsking and acceleration loads being placed on the tire.

The stickier then tire, the higher the rolling resistance of course. But in the grand scheme of things, a very small difference between the compounds.

[Jolle]

Awesome race analysis by SomersF1, including some pretty cool technical insights (regarding brake temperature management, etc.).

http://www.somersf1.co.uk/2019/08/somer ... tical.html

Thanks. i generally have a lot of time for Matt Somerfield but there were a couple of nonsenses:

Well it's the opposite isn't it: more grip from new tyres means you can increase the load on the brakes! Tho the amount of energy is the same so it just means they can brake later and harder for less time but the total heat energy is the same. edit or What he probably means is they can corner faster so they don't have to dissipate so much . . .

Just goes to show that, like Scarbs and the others, if F1 journos could do F1 engineering they'd be doing it Plus they have deadlines. But it's a good read anyway and like him I can't wait for Spa

Regarding the brakes/tires point, was he referring to the fact that a fresh tire has more bite/grip? Better grip means better and more efficient braking performance. That has to help with managing the temps, as sliding around on older, slicker rubber often requires additional braking input.

Furthermore, wouldn't the newer, stickier tires help with lifting and coasting (higher rolling resistance of the new rubber working in conjunction with the aero drag being generated when lifting off the throttle) - a strategy that Hamilton was doing frequently in order to help manage the brake temps?

A fresh tire means you can brake harder, so brake temps will go up. It’s all about the amount of energy you take out of the car with brakes alone.

[izzy]

The heat load is lower because your arrival speeds are similar but your cornering speeds are higher - so you scrub less energy off,

yes this is why I said

edit or What he probably means is they can corner faster so they don't have to dissipate so much heat

that you accidentally missed off quoting

[izzy]

Link -> Mercedes: 18 more horses from the new gasoline molecules

The Mercedes in Hungary used a new fuel to vitaminize the Phase 2 power unit that debuted in Canada,

It seems that the very secret molecules that make up this new fuel are the result of a collaboration between Petronas and a small German laboratory that has developed a new synthetic gasoline perfectly in line with the FIA ​​regulatory requirements, but capable of a distinct calorific value higher.

Excellent! 18 is quite a good step, and done with secret molecules!! And 'vitaminize', such a perfect word

[izzy]

Regarding the brakes/tires point, was he referring to the fact that a fresh tire has more bite/grip? Better grip means better and more efficient braking performance. That has to help with managing the temps, as sliding around on older, slicker rubber often requires additional braking input.

Furthermore, wouldn't the newer, stickier tires help with lifting and coasting (higher rolling resistance of the new rubber working in conjunction with the aero drag being generated when lifting off the throttle) - a strategy that Hamilton was doing frequently in order to help manage the brake temps?

I think he just slightly lost the plot at this point I don't see why the rolling resistance would be different on a new tyre? They don't have any significant slip just rolling do they, the rolling resistance comes from the deflection of the sidewall. I reckon Matt just vaguely or instinctively knew that new tyres help the brakes and the explanation that he ended up typing was a bit random

It's an interesting idea of PhilipM's that the harder braking new tyres allow gets more heat dissipated as radiant heat, tho at some temperature the carbon starts to oxidise doesn't it and we see the dust coming out, it must be a close thing. And teams have control over brake temps over the race as a whole. I reckon the main factor is not having to slow down as much

[Just_a_fan]

As they are not adding vitamins, it's an entirely inaccurate word. "Supplemented" would be a better word - they have added a fuel supplement to improve combustion.

[Big Tea]

Thanks. i generally have a lot of time for Matt Somerfield but there were a couple of nonsenses:

Well it's the opposite isn't it: more grip from new tyres means you can increase the load on the brakes! Tho the amount of energy is the same so it just means they can brake later and harder for less time but the total heat energy is the same. edit or What he probably means is they can corner faster so they don't have to dissipate so much . . .

Just goes to show that, like Scarbs and the others, if F1 journos could do F1 engineering they'd be doing it Plus they have deadlines. But it's a good read anyway and like him I can't wait for Spa

Regarding the brakes/tires point, was he referring to the fact that a fresh tire has more bite/grip? Better grip means better and more efficient braking performance. That has to help with managing the temps, as sliding around on older, slicker rubber often requires additional braking input.

Furthermore, wouldn't the newer, stickier tires help with lifting and coasting (higher rolling resistance of the new rubber working in conjunction with the aero drag being generated when lifting off the throttle) - a strategy that Hamilton was doing frequently in order to help manage the brake temps?

A fresh tire means you can brake harder, so brake temps will go up. It’s all about the amount of energy you take out of the car with brakes alone.

Does it not also mean that you corner faster so apply the brake for a shorter period? (also more moving air)

[GPR-A]

Regarding the brakes/tires point, was he referring to the fact that a fresh tire has more bite/grip? Better grip means better and more efficient braking performance. That has to help with managing the temps, as sliding around on older, slicker rubber often requires additional braking input.

Furthermore, wouldn't the newer, stickier tires help with lifting and coasting (higher rolling resistance of the new rubber working in conjunction with the aero drag being generated when lifting off the throttle) - a strategy that Hamilton was doing frequently in order to help manage the brake temps?

A fresh tire means you can brake harder, so brake temps will go up. It’s all about the amount of energy you take out of the car with brakes alone.

Does it not also mean that you corner faster so apply the brake for a shorter period? (also more moving air)

If a car is slow, then you can break later before a turn. If it comes to the breaking zone with greater speed, then you break early and break harder before you take turn. No driver keeps breaking throughout a corner, it's before the corner entry.

[dren]

Regarding the brakes/tires point, was he referring to the fact that a fresh tire has more bite/grip? Better grip means better and more efficient braking performance. That has to help with managing the temps, as sliding around on older, slicker rubber often requires additional braking input.

Furthermore, wouldn't the newer, stickier tires help with lifting and coasting (higher rolling resistance of the new rubber working in conjunction with the aero drag being generated when lifting off the throttle) - a strategy that Hamilton was doing frequently in order to help manage the brake temps?

A fresh tire means you can brake harder, so brake temps will go up. It’s all about the amount of energy you take out of the car with brakes alone.

Does it not also mean that you corner faster so apply the brake for a shorter period? (also more moving air)

New tires would enable higher cornering speeds so you would require less braking before the corner, but, corner exit would be higher so your speed would be higher entering the next corner thus possibly requiring more braking. Not sure what the trade off would be.