Renault R30

[marcush.]

to me the whole bar thing on top of the Renault engine looks very structural-the tubes are visibly embedded into this structure ,not just boted to it .so i go with 747h the thing is not just there to avoid bendingbrings ne to the question why not elongating the tub to slot the engine vertically into the tub-structural engine cover /airscoop sort of?

[woohoo]

...

What is this ?
A Lemans prototype I assume ?

[marcush.]

Audi R10

[noname]

to me the whole bar thing on top of the Renault engine looks very structural-the tubes are visibly embedded into this structure ,not just boted to it .so i go with 747h the thing is not just there to avoid bendingbrings ne to the question why not elongating the tub to slot the engine vertically into the tub-structural engine cover /airscoop sort of?

one of the advantages of the struts is they transfer the force without transferring the moments (there are ball joints on the ends) and thus you can avoid over-stiffening of the structure, which usually means adding mass. maybe that's the case ?

[marcush.]

wher do you spot the ballbearings? i see two bolts each side...

[noname]

just guessing. these pictures are not fully clear to me. I do not know how the lower end is restrained, also.

[bar555]

F DUCT , REAR WING - BELGIUM


Renault initially declared that would not intend to waste time and effort on developing its own version of the F-duct system but rather on extensive R30 development . Several months have passed since then and now at Belgium Renault presented its own version of the rear wing stalling system . The team obviously changed mind and voted yes for developing its own version , even though the F-duct system would be out of rules next season , probably because firstly the R30 shows great potential and secondly the battle with Mercedes GP for the 4th constructor’s championship position is within realistic reach .

Renault’s decision to have its own version paid off at Spa as Kubica was high on top speed list . Furthermore the team evaluated the system to worth up to half a second in the long Spa track but according to Kubica Renault is not going to re-use the system at next race at ultra low downforce track of Monza .



As all versions of the F-duct system so Renault’s one is operated by the driver’s left hand . Inside the cockpit and behind the driver’s left shoulder there is small rectangular hole connecting the system to the driver’s operating control area . If we take a closer look on the cockpit area behind the driver we can a see that the introduction of the system caused the left rear cockpit wall to rise up a little so as to fit the system’s tube .



The system itself receives air from two little holes placed on either side of the airbox ( 1 ) . When the system is activated by the driver at straights the air entering the holes mentioned before , feeds the main plane of the rear wing ( 2 ) , which is connected to the system via a small inclined downwards tube hosed inside the engine cover . When the system is inactive the air then flows out and under the wing’s profile ( 3 ) via another tube (black colored) placed further below the first one . Nevertheless the exiting flow from the black lower tube is directed above the extra winglet mounted on the wing’s beam so as not to block the airflow onto it .
A clever evolvement of the system would be to sent the exiting air , by first speeding it up using a Venturi effect inside the tube , directly onto the winglet to maximize the downforce production

[bar555]

SIDEPODS - ENGINE COVER MODIFICATIONS AT SPA


Alongside with the introduction of the F-duct system the R30 featured also elongated to the rear sidepods and a new engine cover .





The thermal protective cover and the vertical inner fence were moved to the rear and are now spotted under the rear’s suspension wishbones , a changed triggered by the elongation of the sidepods and the floor exhaust outlets to the rear .




The new engine cover presented at Spa has a new upper part which can be separated from the rest cover body to offer more freedom to mechanics to enter inside the cover and reach the engine and F-duct system internals . Moreover the cover is elongated significantly to the rear and features a small cut ( blue arrow ) where it meets the upper suspension’s wishbone .

[Blackout]

...not in Spa (the new engine cover) but in Budapest

[bar555]

Hungary ? Are you sure ? The F-duct was launched at Spa and so the modified engine cover .

[Blackout]

viewtopic.php?p=195026#p195026



nice job

[bar555]

Renault tested both versions at Hungaroring , the short and the elongated sidepods , but i thought the team reverted back to the old specification for race .

[korzeniow]

How could this wing be bended by such small stream of air while there is heavy strut right under the place where air is blowed?

[ESPImperium]

How could this wing be bended by such small stream of air while there is heavy strut right under the place where air is blowed?

Its not bended, the air flow is detached from the wing, reducing drag. Theres no bend or flexing here.

[wesley123]

that is what they want you to think lol.

Flexi rear wings are far more known then front wings and floors, afaik every team is running them, that is why there are no complaints bout it. The floor and front wing got some complexity with them as it has flow around and behind wich still need to be of good quality, the rear wing is only let it bend as it reduces drag, but there is nothing behind for the aerodynamics to screw with.