F1 chassis rake angle

[Sae]

The red bulls have been doing it for ages but it's quite pronounced on all cars - getting more rake.

They're jacked up more than starsky's torino

 

[buzyg]

That sucks.

 

[Sae]

They're not allowed to blow anymore are they?

 

[MrPT]

They're not allowed to blow anymore are they?

Not exhaust-blow, no, but they can still shape the air to the diffuser passively.

It's a good question though, because I thought that exhaust blowing was key to "sealing" the rear diffuser to allow it to work at even higher rake angles than would be possible otherwise. Without the rear diffuser in play, increased rake just means a slight increase in ground effect from the front wing and floor, which might not pay off the additional complexity in the way the car needs to be set up.

 

[slick]

They're not allowed to blow anymore are they?

Not exhaust-blow, no, but they can still shape the air to the diffuser passively.

It's a good question though, because I thought that exhaust blowing was key to "sealing" the rear diffuser to allow it to work at even higher rake angles than would be possible otherwise. Without the rear diffuser in play, increased rake just means a slight increase in ground effect from the front wing and floor, which might not pay off the additional complexity in the way the car needs to be set up.

Doesnt the increased rake cause a low pressure area under the rear of the car sucking it to the ground ?

 

[Woots]

Yes the above is correct, however it's not as advantageous nowadays for a number of factors, one being the new ti skid plates not letting us run as low at the front....

 

[MrPT]

They're not allowed to blow anymore are they?

Not exhaust-blow, no, but they can still shape the air to the diffuser passively.

It's a good question though, because I thought that exhaust blowing was key to "sealing" the rear diffuser to allow it to work at even higher rake angles than would be possible otherwise. Without the rear diffuser in play, increased rake just means a slight increase in ground effect from the front wing and floor, which might not pay off the additional complexity in the way the car needs to be set up.

Doesn't the increased rake cause a low pressure area under the rear of the car sucking it to the ground ?

I'm just going from what I've read on blogs etc, but I don't think that this effect it large when the rake angle is so steep. It's the diffuser which generates most of the rear downforce and you can increase its effect with greater rake (because the size of the diffuser tunnels is made bigger), but only if you can stop it leaking air. You might be able to have a full-length ground effect floor under today's F1 regs, but I imagine it would be seriously unstable because there's no active ride height control etc.

 

[sars]

Hey Woots, I have a friend with a few spare tractor engines if that will help you out next year :lol:

.....in all seriousness, I know Red Bull have been instrumental is upsetting the hand that feeds them, but the sport will be poorer if they are forced to leave

 

[Woots]

Hey Woots, I have a friend with a few spare tractor engines if that will help you out next year :lol:

.....in all seriousness, I know Red Bull have been instrumental is upsetting the hand that feeds them, but the sport will be poorer if they are forced to leave

I think a lot of things have been said perhaps to change the way the sport is headed. Would the new engine concept be in the pipeline had nothing been said? Sadly without being an engine works team there's very little chance in getting where you want, if we had been given merc engines as soon as we started to beat them it would then be a case of them turning down the engines.

Obv it's all way way above my level and it's actually been quite interesting for us to see where it's headed long term.

I haven't been sending my cv out elsewhere...read between those lines