McLaren MCL33

[Gr1ff]

You've got very, very good eyesight...

Loss of time for SV I would think

They were within hundredths of each other so I din't think so.

Why would that mean Norris was the slower Telemetry?

[M840TR]

Loss of time for SV I would think

They were within hundredths of each other so I din't think so.

Why would that mean Norris was the slower Telemetry?

Because the logical thing would be to compare with fastest lap to see where their deficits are.

[godlameroso]

I noticed the floor trialed by Vandoorne had a device behind the bargeboard. Apparently it didn't work very well.

[djos]

Are they having wind tunnel correlation issues? You'd think they'd know if it works before it got anywhere near the car?

[Gr1ff]

They were within hundredths of each other so I din't think so.

Why would that mean Norris was the slower Telemetry?

Because the logical thing would be to compare with fastest lap to see where their deficits are.

Norris was faster at this point...

[mwillems]

Are they having wind tunnel correlation issues? You'd think they'd know if it works before it got anywhere near the car?

Yes, they realised this sometime around Barcelona and have since said they are having correlation issues.

[djos]

Are they having wind tunnel correlation issues? You'd think they'd know if it works before it got anywhere near the car?

Yes, they realised this sometime around Barcelona and have since said they are having correlation issues.

Ah, not good. Williams had these sort of issues for years and now look at them, I hope this doesn't continue for McLaren too.

[lio007]

Are they having wind tunnel correlation issues? You'd think they'd know if it works before it got anywhere near the car?

Yes, they realised this sometime around Barcelona and have since said they are having correlation issues.

Ah, not good. Williams had these sort of issues for years and now look at them, I hope this doesn't continue for McLaren too.

Hard to understand, AFAIK McLaren uses the wind tunnel in Cologne!
An this is said to be one of the best facilities in the motorsport-world.

[M840TR]

I noticed the floor trialed by Vandoorne had a device behind the bargeboard. Apparently it didn't work very well.

https://i.imgur.com/FqIqMTH.jpg

Looks like an earlier iteration of the tea-tray extension.

[godlameroso]

I noticed the floor trialed by Vandoorne had a device behind the bargeboard. Apparently it didn't work very well.

https://i.imgur.com/FqIqMTH.jpg

Looks like an earlier iteration of the tea-tray extension.

https://i.imgur.com/AYrJ0q0.jpg

It does but it seems to not extend as far outboard as the one shown. I still think the plate and chicken wing are badly done, the device behind the bargeboard guides the vortex traveling under the floor and the mid wing energizes that vortex. McLaren's solution creates flow stagnation in that area because the lateral and longitudinal flows disturb each other rather than compliment. The flow-vis paints it clear as day. Without the device they get more airflow under the floor which results in a net gain, it all stems from the bad solution they used in the mid wing. And seeing how the floor is constructed, they'd have to manufacture a whole new floor which is why updating this takes so long. My guess, next year's car will be a lot more modular in this area so they'll be able to experiment with the design in season, and cut down on lead times.

[Big Tea]

Yes, they realised this sometime around Barcelona and have since said they are having correlation issues.

Ah, not good. Williams had these sort of issues for years and now look at them, I hope this doesn't continue for McLaren too.

Hard to understand, AFAIK McLaren uses the wind tunnel in Cologne!
An this is said to be one of the best facilities in the motorsport-world.

Would the scaling software belong to the tunnel or to Mclaren?

[zac510]

Wind tunnel correlation issues seem highly correlated with teams having a bad year.

[Big Tea]

Wind tunnel correlations issues seem highly correlated with teams having a bad year.

Probably related to light at the end of the tunnel.

[M840TR]

I noticed the floor trialed by Vandoorne had a device behind the bargeboard. Apparently it didn't work very well.

https://i.imgur.com/FqIqMTH.jpg

Looks like an earlier iteration of the tea-tray extension.

https://i.imgur.com/AYrJ0q0.jpg

It does but it seems to not extend as far outboard as the one shown. I still think the plate and chicken wing are badly done, the device behind the bargeboard guides the vortex traveling under the floor and the mid wing energizes that vortex. McLaren's solution creates flow stagnation in that area because the lateral and longitudinal flows disturb each other rather than compliment. The flow-vis paints it clear as day. Without the device they get more airflow under the floor which results in a net gain, it all stems from the bad solution they used in the mid wing. And seeing how the floor is constructed, they'd have to manufacture a whole new floor which is why updating this takes so long. My guess, next year's car will be a lot more modular in this area so they'll be able to experiment with the design in season, and cut down on lead times.

The reason their mid-wing is distinct is because they use it to guide air under the floor instead of guiding the outwash like others.

[mwillems]

Yes, they realised this sometime around Barcelona and have since said they are having correlation issues.

Ah, not good. Williams had these sort of issues for years and now look at them, I hope this doesn't continue for McLaren too.

Hard to understand, AFAIK McLaren uses the wind tunnel in Cologne!
An this is said to be one of the best facilities in the motorsport-world.

Well a Mclaren engineer has subsequently said on Twitter, that "it isn't exactly a correlation issue".

So what that means is anyone's guess.