McLaren MCL33

[cramr]

Do you think it possible that some teams experiment with channeling air through the nose through the car to exit as as micro jets to help seal the diffuser?

You mean all the way trough the car?

Yes duct the air coming through the nose and speed it up so that it exits as a jet near the diffuser, maybe to add energy to any vortecies interacting with the rear wheel to limit it's effect on squirt. Or maybe to help with places that are prone to flow separation.

https://arc.aiaa.org/doi/10.2514/1.8552

If I'm not wrong that's not really possible since it's not allowed to have any air duct passing through the cockpit (to avoid possible F-duct and things like that in the past). Besides that it would be hard to keep enough momentum in that flow to "survive" in good condition an almost 6 meters trip. You are probably better off getting a good cokeline flow that bringing it from the front of the car

[mclaren111]

... and i still don't know where that S-Duct exit is...

Also very surprised that there is no S-Duct !!

[adrianjordan]

I look forward to getting to see the underside of the new nose. Where the cape is just looks very bulky from the outside (may be an illusion created by the block of orange....maybe if they'd painted the lower part black it wouldn't look as big), but I suspect those side sections are actually slim flow conditioners and there's something else going on that we can't see from the nose ducts...

[GoranF1]

Rear brake ducts also different.

[michl420]

In front view you can see through the slots on the side of the new nose, so they use not the same rule loophole as the force india nostrils. My question is, how fits this nose in the "just one cross section" rule?

[mclaren111]

Rear brake ducts also different.

Can you post a picture ?

[Nonserviam85]

... and i still don't know where that S-Duct exit is...

Also very surprised that there is no S-Duct !!

I think I saw some exits painted in black on the back sides of the nose but this doesn’t look like a standard S duct configuration

[Thunder]

Some good Pictures here:
[media]https://twitter.com/ScarbsTech/status/9 ... 6869186561[/media]

[OviJohn]

An interesting video describing/ analyzing the changes and possible aerodynamic effects of new front and other upgrades:

https://youtu.be/MSD9vv56bK0

Kudos to CPR at Autosport forums for the find!

[matt_s]

One question I have:

Why is the nose ducted on the sides like the FI/Sauber? If you compare the length of the 'tip' to that of the RBR, they are pretty much the same. What benefit is there to create the nostrils rather than just have then open? Where are they ducting the air?

EDIT: To clarify, FI are doing the nostrils to get the holes further up the sides of the nose than the otherwise could. McLaren aren't doing this. The are also not using them to channel the air in behind the nose, because they don't appear to exit above the cape. So what does this allow them to do that a RBR tip doesn't?

[Macklaren]

I'm surprised at the lack of aero rakes/flo-vis etc in FP1 so far. but early pace looks promising...

Edit: OK flo-vis on now...

[Sevach]

[media]https://twitter.com/ScarbsTech/status/9 ... 1209454592[/media]

[gridwalker]

One question I have:

Why is the nose ducted on the sides like the FI/Sauber? If you compare the length of the 'tip' to that of the RBR, they are pretty much the same. What benefit is there to create the nostrils rather than just have then open? Where are they ducting the air?

EDIT: To clarify, FI are doing the nostrils to get the holes further up the sides of the nose than the otherwise could. McLaren aren't doing this. The are also not using them to channel the air in behind the nose, because they don't appear to exit above the cape. So what does this allow them to do that a RBR tip doesn't?

I believe it is down to widening the gap between the pylons in order to maximise flow to the cape.

Moving the wing pylons wider increases the surface area of the nose. This creates space above the minimum regulated requirement at the nose tip, so it is better to reduce the impact by adding ducts. Although not as good as free flow air, the overall volume should be increased.

[matt_s]

Interesting. So Scarbs reckons they might vent out behind the nose above the cape.

[Morteza]