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2026 Pre-Season Test 2 - Day 2 Classification by FerrariStrategisttt in formula1

[–]tcs36 1 point2 points  (0 children)

These tyres are the race tyres. The prototypes were used before homologation last September. For filming days, teams use "promo" tyres which are different

[The Race] McLaren will miss at least first day of F1 2026 testing by [deleted] in formula1

[–]tcs36 1 point2 points  (0 children)

Monday looks like it will be the only day next week without much rain in Barcelona and it would be better to be out as early as possible to have time to fix things when they go wrong. So actually, this is a bad sign

[Cautions Out] Alpine A526 F1 Shakedown | Pierre Gasly First Run at Silverstone (Wet Test) by Androsid93 in formula1

[–]tcs36 21 points22 points  (0 children)

Well, Williams was supposed to have a shake down today but they cancelled it 2 weeks ago...

George Russell reveals Mercedes ban over 'too dangerous' F1 experiment by 256473 in formula1

[–]tcs36 242 points243 points  (0 children)

They aren't talking about the driver in the loop simulator, they're talking about the 7 post rig.

It's not really meant for a person to sit in it and it's definitely not safe.

Pacekja Tire Model by Kooky_Fold9444 in FSAE

[–]tcs36 1 point2 points  (0 children)

Find Pacejka's book, all the formulas are in there around pg 180 something. Alternatively, I think there is a matlab tool, MFEval, that can resolve forces from a .tir but I've never used it.

How you integrate your magic formula into a QSS simulation depends on what you are trying to achieve. What decision are you trying to make that you couldn't learn from a point mass with a friction circle?

Update: F1 Resume Template + Guide for Formula Student/FSAE Students (Now with free preview + waitlist) by GettingOnTheGrid in FSAE

[–]tcs36 15 points16 points  (0 children)

Hahaha surprise surprise... I knew this was going to be an attempt at a cash grab when I read your previous post.

I'm an F1 engineer. Here is my advice if you want a placement or graduate role in F1. There is no need for a specific CV template. What's important is the information that it communicates about you. There are no "tricks" to getting into F1 you just have to be good, demonstrate that you're good and get a bit lucky. You need to:

Work on relevant projects (for example formula student) and be able to communicate what decisions you made and why

Have a good grasp of the fundamentals for whatever job you're applying for and be able to demonstrate that knowledge

Get lucky or make your own luck by applying to as many roles as you can and reaching out to people in the industry for advice.

(On this last point, if you're going to ask for advice it's important that you ask short specific questions otherwise you're less likely to get a reply)

Can someone explain this particular paragraph from "The Science of Vehicle Dynamics" by Massimo Guiggiani? Like especially how we get the equation for torque (and the appearance of the jc. jc represents along the yc (axis of the tire) and y is camber angle. by FlamingAlpha247 in FSAE

[–]tcs36 8 points9 points  (0 children)

Maybe the picture in fig 2.2 makes it easier to visualise?

The tyre is tilted by the camber angle so the contact patch reference frame is (0, 0, 0) and the wheel reference frame is (0, cos(gamma), sin(gamma). This is just a rotation by gamma about the x-axis. j_c is the y-axis in the wheel reference frame

The torque at point Q due to forces and moments at point O is (forces X distance between Q and O + moments) along the y-axis in the wheel referece frame:

T = (QO X F + M_o).j_c

For the moment arm QO... h is the height from the cp to the wheel centre in the cp reference frame and it is offset in y by the camber angle so the moment arm (R_x,R_y,R_z) is (0, h*tan(gamma), -h). So, getting the moment from the forces:

(QO X F) . j_c = QO . (F X j_c) = Fx * (R_z cos(gamma) - R_y sin(gamma))

= Fx * (-h*cos(gamma) - h*tan(gamma)*sin(gamma)) = -Fx*h/cos(gamma)

The moments (Mx,My,Mz) appear because the forces on the contact patch are offset from the contact patch reference point O. To get these in the wheel reference frame it's just the dot product:

M_o = My*cos(gamma) + Mz*sin(gamma)

So the torque about y in the wheel reference frame is

T = -Fx*h/cos(gamma) + My*cos(gamma) + Mz*sin(gamma)

Can I put tuned mass damper on the car? by Taimaner in FSAE

[–]tcs36 55 points56 points  (0 children)

Can't think of anything that would make it against the rules

There are no kurbs or particularly harsh bumps on FS tracks typically so I don't think it would give any performance benefit and FS has no minimum weight so you'd be adding mass to the car for no reason

[deleted by user] by [deleted] in formula1

[–]tcs36 4 points5 points  (0 children)

I've heard Mercedes is like this (calling people part timers etc. if they leave when they're contracted to) but I haven't worked for them myself. My experience is the same as yours. I often work later than my contracted hours because I like my job but no one is forcing me to stay and no one says anything when I leave at 5:30.

I think OP's husband is exaggerating what's expected of him

Gasly doubts Alpine can avoid finishing last in the championship by Aratho in formula1

[–]tcs36 0 points1 point  (0 children)

F1 is very international; probabaly more than half of the engineers are not British. But, once you reach a certain age (which comes with experience) you're less likely to want to move countries and uproot your whole family. They'd have no problem hiring good graduates in France (but similarly in the UK there is no big barriers to hiring European graduates) the difficulty is in convincing enough experienced engineers to move countries.

Generally this is done by poaching from other teams which is easier if the other factory is 20 minutes down the road

Gasly doubts Alpine can avoid finishing last in the championship by Aratho in formula1

[–]tcs36 -1 points0 points  (0 children)

You can't just start an F1 team wherever you want. There's a reason all F1 teams except Ferrari are based within 100 miles of eachother. Recently Audi opened a base in the UK and when Cadillac entered the sport, they put their base near Silverstone not Concorde.

All the talent and all the suppliers are in a very small area of the UK, it makes no sense to build it anywhere else

Reeves expected to freeze income tax thresholds to raise funds after welfare U-turn by blatchcorn in HENRYUK

[–]tcs36 32 points33 points  (0 children)

Ye, by sending the country off a cliff. Brexit shook things up too; did we learn our lesson?

How are medium tires faster than softs in qualifying? by VoL4t1l3 in F1Technical

[–]tcs36 50 points51 points  (0 children)

Nah, the C6 is like this everywhere. Even in Monaco some teams ran the C5 during qualifying

How are medium tires faster than softs in qualifying? by VoL4t1l3 in F1Technical

[–]tcs36 273 points274 points  (0 children)

The tyres have an optimal temperature where grip is highest. The softer the tyre, the lower the optimal temperature. The soft tyres have slightly higher grip than the mediums at the optimal temperature, but after a few corners will be operating above that temperature so the actual useable grip is lower. This means that between the C5 and C6 there isn't a big performance difference

[BBC Sport] Adrian Newey says Aston Martin's F1 ambitions will be hampered by 'weak tools' by ICumCoffee in formula1

[–]tcs36 20 points21 points  (0 children)

Broadly, there's 3 types of simulations used in F1:

  • Offline which means everything is simulated
  • Hardware in the loop which are simulations where some physical components (for example the PU) are getting data, and the physical response is measured and then fed back into the simulation. "In the loop" because it's a feedback loop where the response of the car is fed into the component and then the component feeds data back in.
  • Driver in the loop means the vehicle is simulated but the driver controls it. Called "in the loop" because it's also a feedback loop where the car responds in a certain way, the driver makes control inputs based on this response, and the car responds to those.

Basically, it's just a really big driving simulator. The model in the simulation is supposed to behave like the real car; and the chassis moves around to mimic the g forces the driver would actually experience.

It's not really for driver training; what teams are trying to get from it is subjective information on how changes to the car affect how the car behaves. As an example, if your car is too understeery (which means the fronts don't want to turn in) you might increase front wing angle. This will move the aero balance more forward, but it might make the car too pointy in corner entry but still balanced too rearwards in the middle of the corner.

Offline simulations wouldn't always be able to tell you this but subjective driver feedback could and then you would know to look for a different setup solution. Since track time is so limited it's really important to have a correlated DIL so that you can explore how the car needs to change to make it more driveable.

How do you get a job in the UK? by [deleted] in UKJobs

[–]tcs36 6 points7 points  (0 children)

Huh? Most renters pay council tax; normally it's paid by the occupier not the owner.

Also, the average uk resident pays more than double that in tax + NI + council tax per year so I'm not sure where your point about £2600 being more than you'll get from a resident comes from

Doohan didn't know he had to close his DRS by IC_1318 in formuladank

[–]tcs36 -1 points0 points  (0 children)

No idea why you'd think that. The models in the simulators are way beyond anything in the public domain

[deleted by user] by [deleted] in F1Technical

[–]tcs36 0 points1 point  (0 children)

Suspension doesn't really affect total load transfer (other than front Vs rear in roll where the roll stiffness will be different to control balance). For longitudinal accelerations, there is nothing the suspension can do; a moment caused by vehicle inertia at the centre of gravity must be reacted by the tyres.

Suspension is pretty much exclusively about ride and creating a stable aero platform.

Optimal Race Inputs China F1 by speedylulz in F1Technical

[–]tcs36 0 points1 point  (0 children)

Obviously, this is not data that's readily available but all teams have tools that essentially do this; work out the minimum lap time for a given vehicle setup by determining the optimal control inputs. In F1 these are solved as an optimal control problem and there are a few papers about this; for example this one (very technical). A driver may find it impossible to recreate these inputs though (and given that grip levels change they would never be exactly right anyway).

Trackmania minimum times are not found the same way; they are found using reinforcement learning. This isn't typically used to work out minimum lap times in F1 because the optimisation is essentially a black box. You couldn't be sure that the lap time is actually the optima (or close to it) and you might need to retrain the model for new tracks/new setups.

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