Lotus E21 Renault

[MarkedOne8]

As we have commonly started to talk about all that "blowing" in 2010, so are the engineers quite a bit.

I don't know what its function is, but IF IT IS for driver cooling, I would rather use far more simple solutions like Ferrari has. Pure hole under the nose.Period.

Though I like the idea about ECU being there. I didn't know how big or small it is.

[nlehoullier]

Looks like a load cell between that acme screw and the tea tray. Flex test perhaps?

[SRK]

New bodywork architecture, Mercedes inspired air outlets around upper wishbone but previous exhaust solutions.

Floor pictures- delicious.

[Blackout]

E20 had the same outlets (the coanda version)
http://www.f1technical.net/forum/viewto ... start=1410
Why don't F1 teams use REAMS material instead of Crbon fiber for bodywork, floor, endplates etc ?

[Gridlock]

Why don't F1 teams use REAMS material instead of Crbon fiber for bodywork, floor, endplates etc ?

http://www.formula1.com/inside_f1/rules ... 7/fia.html

[Matt Somers]

Going back to the floor issue if I may, it appears some have fell foul of perspective again... Assuming that the 'Trumpet' shown in the gap is on the same plane as where the Splitters Support ends. However the Trumpet on show is actually above that and is part of the Bodywork above the Splitter IMO





Ie it starts where the cooling hole has been since the E20...

[Blackout]

That's what I said

Why don't F1 teams use REAMS material instead of Crbon fiber for bodywork, floor, endplates etc ?

http://www.formula1.com/inside_f1/rules ... 7/fia.html

Thanks

[abw]

Agreed (edit: agreed with Matt Somers two posts back). If the trumpet started at the splitter-support hole/attachment point, we would not be able to see through the hole.

If air is meant to flow through the splitter-support, it receives no guidance (in the form of a tube or duct or whatever inside the floor) that we have been able to see in any of these photos. I cannot imagine much benefit to simply running air into/from the floor/nose through that support if the air is not guided somewhere/somehow on the floor-side of the hole. Perhaps Lotus connects an as-yet-unphotographed tube (that blue tube in the photos with the cooling fan?) on the floor-side of the support hole when they assemble things.

Or maybe the support is hollow for wires, multi-axial rigidity, to look cool, or any number of less tricksy reasons. As forum elders wisely observe--paraphrasing--sometimes a part is just a part.

[Forza]

F1 Malaysian GP - Thursday - 21/3/2013
HiRes via F1.nl



http://imgur.com/WrHql0o.jpg
http://imgur.com/Xgsg8FQ.jpg
http://imgur.com/SKF3h4M.jpg
http://imgur.com/UFXgpNv.jpg

[flyboy2160]

Why don't F1 teams use REAMS material instead of Crbon fiber for bodywork, floor, endplates etc ?

http://www.formula1.com/inside_f1/rules ... 7/fia.html

The F1 materials list wouldn't necessarily preclude REAMS unless the secondary filler polymers (besides the primary polypropylene-which is allowed) are banned.

Despite some hooray PR about that stuff, the major reason you don't want to replace a traditional F1 carbon fiber polymer matrix composite is that the REAMS stuff is much, much less stiff than the carbon composite (say 1/30th or 1/50th or even 1/100th the stiffness) . This would mean that the structure would be deforming much more, which is not what you usually want in a high performance - high stiffness driven structure.

REAMS would make more sense in some street car applications in which the part is subject to denting - like maybe bumpers or fenders or door skins. Much like the late Pontiac Fiero.

[tim]

Is this apparent load testing on the tea tray not actually equipment used to attach the plank? On the Ferrari thread there's a pic of the team doing virtually the same thing. Also I believe the support to be shaped as such to help flow under the noise and around the sidepods In yaw.

[estormell]

Hello all, my first post here. I have a question regarding the fluidic switch theory.
As the speed increases the gap under the leading edge of the tray (low pressure zone) gets closer to the ground. I expect the pressure to build up significantly when the gap is completely closed at high speeds. Could this be used as the switching mechanism?

[allstaruk08]

the hole in the tray might just be to cool the driver, the lotus was sparking a hell of a lot in australia so i bet it was getting a bit warm under the seat lol

[beelsebob]

My logic for the tube in the tea tray being something special (and no, that doesn't mean cooling the driver), is simple – ocamm's razor.

There's no reason to support the tea tray with a fancy tube support, it requires only a thin strip of titanium, or on some designs, nothing at all. There are also simpler designs for cooling the driver – e.g. a hole in the tip of the nose.

Thus, the simplest possible explanation for the tube is that it's doing something more than just cooling the driver.

[allstaruk08]

the lotus doesn't have a hole in the tip of the nose... so the driver isn't being cooled from there. i never mentioned the tub support i was on about the hole on the tub just above the tray (that will be pretty much infront of the drivers arse), but since you mentioned the support just because other teams use a titanium rod doesn't mean lotus have to do the same maybe they get a aero benefit from running a specific shaped support