Lotus E21 Renault

[Richard]

Is that silver coloured heat protection on the floor next to the rear wheels?

[korzeniow]

Is that silver coloured heat protection on the floor next to the rear wheels?

No, I don't think so. I guess this silver thing is easly removable which allows to tweak the "sealing the diffusor" effect with diffrent modfications to the "silver things" (if necessary) rather than whole floor.

[Richard]

It looks like they use the same material on the step between the floor and the diffuser.

[Gridlock]

Accurate airflow from holes at side of T-Tray?

Grooves not ducts, ie doesn't breach continuous surface rules?

[beelsebob]

Accurate airflow from holes at side of T-Tray?

Grooves not ducts, ie doesn't breach continuous surface rules?

http://i.imgur.com/YQ80N91.jpg

I don't see what grooves you're referring to, unless you're talking about the change from the step to the reference plane... In which case, it's mandated that that level change is there.

[Gridlock]

I don't see what grooves you're referring to, unless you're talking about the change from the step to the reference plane... In which case, it's mandated that that level change is there.

Correct on both counts, it just looks like it lines up too well especially on that lightened picture above.

[beelsebob]

I don't see what grooves you're referring to, unless you're talking about the change from the step to the reference plane... In which case, it's mandated that that level change is there.

Correct on both counts, it just looks like it lines up too well especially on that lightened picture above.

Lines up too well with what?

[oT v1]

http://i.imgur.com/HyuYLYY.jpg

Would those strakes on the diffuser be at a certain 'aggressive' angle specifically for Monaco? or they're just in the aero sweet-spot all season long like that

[Owen.C93]

http://i.imgur.com/HyuYLYY.jpg

Would those strakes on the diffuser be at a certain 'aggressive' angle specifically for Monaco? or they're just in the aero sweet-spot all season long like that

Standard. Lotus increase the expansion zone of their diffuser by exiting some of it from the sides. Hence the aggressive strakes.

[beelsebob]

http://i.imgur.com/HyuYLYY.jpg

Would those strakes on the diffuser be at a certain 'aggressive' angle specifically for Monaco? or they're just in the aero sweet-spot all season long like that

Standard. Lotus increase the expansion zone of their diffuser by exiting some of it from the sides. Hence the aggressive strakes.

I'm not sure it's entirely to do with increasing the expansion zone of the diffuser – probably also to do with trying to feed air into the low pressure zone behind the rear wheels to try and reduce the drag from them.

[raymondu999]

I'm not sure it's entirely to do with increasing the expansion zone of the diffuser – probably also to do with trying to feed air into the low pressure zone behind the rear wheels to try and reduce the drag from them.

Nah, it just does both. Double-whammy, really.

[Huntresa]

I don't see what grooves you're referring to, unless you're talking about the change from the step to the reference plane... In which case, it's mandated that that level change is there.

Correct on both counts, it just looks like it lines up too well especially on that lightened picture above.

Lines up too well with what?

i Think he meant that the ducts in the splitter would feed this area that is higher and would be a duct, which its not.

[AnthonyG]

http://i.imgur.com/Y2x20Ol.jpg
http://i.imgur.com/U68iN1C.jpg
http://i.imgur.com/HyuYLYY.jpg

Wow there is an hole under the nose!

I'm not seeing it.

[shelly]

It looks like they use the same material on the step between the floor and the diffuser.

this is very interssting in my opinion. Sometimes metal is used to reinforce carbon and provide a skid effect (see sparks from front wing endplates) but I do not see imapcts being an issue on the kink line.

Some(un)educated guesses:
-these "metal kink lines" are monaco specific
-there is some aero advantage (surface finish or fien shaping) in having the kink in metal
-those parts are changeable circuit to circuit to fine tune tha expansion and making them in metal makes changing easier or fixing more consistent

I have not seen a similar solution on other cars - has anybody?

[stefan_]

Monaco 2013 - Saturday (25.05.2013)