The teams are not Pirelli. They wouldn't just give away how fast they are.
The teams are not Pirelli. They wouldn't just give away how fast they are.
They had no troubles with almost full flat disks when they had sidewalls 15 years ago or such. So why aren't they doing it like that?Schippke wrote: ↑15 Dec 2021, 11:50This might also form part of it too:
https://www.motorsport.com/f1/news/mcla ... cGrHyfEoog
Isola explained that revisions were required for the initial wheel cover designs for the 18-inch tyres to ensure they remained balance, and that pit crews could easily remove the tyres from the car.
“The first version of the rim cover was very close to the rim, and we had two problems. One was for the mechanics in the pit stops, because they need to put their fingers in and take the tyres off, and with the wheel cover it was not possible, so they had to modify it.
“The second was we couldn’t add the balanced weight on the outside. That’s why if you see the latest version of the wheel cover, there is a shape that is covering the rim, but then you have a step closer to the rim that is useful for the mechanics to take the tyre and for us to balance the weight.
“With this final version, we can balance the tyre when it’s fitted with the wheel and the wheel cover. Otherwise, if you add the wheel cover after balancing, it can be a problem.”
JordanMugen wrote: ↑17 Dec 2021, 11:28nokivasara wrote: ↑16 Dec 2021, 17:43I wonder if the new wheels will slow down direction changes?
Surely the gyroscopic effect is greater with taller tyres?Can't all these questions be answered by watching F2, who have been using the tyres for two seasons?
In F2, it didn't seem to make all that much difference really.
Williams’ Sam Micheal explains is best I think; in short, it’s complex and more dangerous.mzso wrote: ↑19 Dec 2021, 11:55Speaking of wheels, I wonder if there's some rule that requires them to use a wheel nut, and if not why do they use them?
Why not just use a part that clasps on like a human hand. You'd only need a device that spreads it. Especially knowing that nowadays speed is cardinal.
On a different not. I still don't get why don't they do wheel shrouds like they did until 2010. Looking at pictures they could have done pretty much complete disks if the wanted to.
Magnesium? What's the point in using magnesium when titanium is available? AFAIK titanium has the highest strength to weight ratio of metals.Jolle wrote: ↑20 Dec 2021, 01:50The other thing is that you don't want the disc touching wheel because when carbon rubs on magnesium it will cut through it like butter, within a lap you wont have a wheel left. So you've got to be a bit careful you don't push for a bit extra and end up losing your wheel.
titanium is roughly 3 times as dense as magnesium
It’s not my opinion but that of Sam Micheal. I think he knows a thing or two why wheels are made of magnesium.mzso wrote: ↑20 Dec 2021, 19:02Magnesium? What's the point in using magnesium when titanium is available? AFAIK titanium has the highest strength to weight ratio of metals.Jolle wrote: ↑20 Dec 2021, 01:50The other thing is that you don't want the disc touching wheel because when carbon rubs on magnesium it will cut through it like butter, within a lap you wont have a wheel left. So you've got to be a bit careful you don't push for a bit extra and end up losing your wheel.
Tommy Cookers wrote: ↑20 Dec 2021, 19:12titanium is roughly 3 times as dense as magnesium
so a titanium wheel would need to be heavier
unless made so thin it would bend or buckle (so would a titanium monocoque)
magnesium monocoques were the lightest for this reason (as magnesium spaceframes eg Porsche 917 Merc W196)
(but c.1970 were forced to be artificially thick to reduce combustibility - so losing their weight advantage)
what we call strength-to-weight-ratio is assuming direct loads - not bending loads etc
On its own this is meaningless.
So you're implying Mg is stronger considering the loads a wheel gets?Tommy Cookers wrote: ↑20 Dec 2021, 19:12what we call strength-to-weight-ratio is assuming direct loads - not bending loads etc
mzso wrote: ↑20 Dec 2021, 19:02Magnesium? What's the point in using magnesium when titanium is available? AFAIK titanium has the highest strength to weight ratio of metals.Jolle wrote: ↑20 Dec 2021, 01:50The other thing is that you don't want the disc touching wheel because when carbon rubs on magnesium it will cut through it like butter, within a lap you wont have a wheel left. So you've got to be a bit careful you don't push for a bit extra and end up losing your wheel.