Lotus E20 VD

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PlatinumZealot
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Re: Lotus E20 Renault

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There are probably no holes in the end plate must have seen a shot by now.

Notice too, that there is no "cover plate" attached to the DRS flap to cover the hole if there was indeed one, and the gills are still the full extent of the end plate. You can't have full gills with a hole in the wing. You only can get space for DDRS holes if you shorten the gills like what Mercedes have done.

I conclude that there are no DDRS holes in the end plate, and the system is not a DDRS system. You heard it here first!

Long gills

Image

Short gills
Image
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superdread
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Re: Lotus E20 Renault

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n smikle wrote:There are probably no holes in the end plate must have seen a shot by now.

Notice too, that there is no "cover plate" attached to the DRS flap to cover the hole if there was indeed one, and the gills are still the full extent of the end plate. You can't have full gills with a hole in the wing. You only can get space for DDRS holes if you shorten the gills like what Mercedes have done.

I conclude that there are no DDRS holes in the end plate, and the system is not a DDRS system. You heard it here first!
Lotus would need considerably smaller holes when they use a fluid witch than Mercedes (not quite sure if they use one but their holes are way bigger than what a fluid witch could need).

And we heard you here before.

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PlatinumZealot
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Re: Lotus E20 Renault

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I meant F1 technical when I said "here."
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N12ck
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Re: Lotus E20 Renault

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superdread wrote:
n smikle wrote:There are probably no holes in the end plate must have seen a shot by now.

Notice too, that there is no "cover plate" attached to the DRS flap to cover the hole if there was indeed one, and the gills are still the full extent of the end plate. You can't have full gills with a hole in the wing. You only can get space for DDRS holes if you shorten the gills like what Mercedes have done.

I conclude that there are no DDRS holes in the end plate, and the system is not a DDRS system. You heard it here first!
Lotus would need considerably smaller holes when they use a fluid witch than Mercedes (not quite sure if they use one but their holes are way bigger than what a fluid witch could need).

And we heard you here before.
exactley which is why you cant rule out a DDRS effect, look at how big the Mclaren Snorkel was, I believe it is a dual system, but we cant know for deffinate until we see DRS open on the Lotus
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superdread
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Re: Lotus E20 Renault

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N12ck wrote: exactley which is why you cant rule out a DDRS effect, look at how big the Mclaren Snorkel was, I believe it is a dual system, but we cant know for deffinate until we see DRS open on the Lotus
They would be stupid not to, even if they have a passive system running, simply drill a hole that is covered by the DRS flap connect it to the passive activation duct and the additional pressure from the DRS covered hole should be enough to switch the F-Duct when the dynamic pressure is not enough (size of 'simple hole' depends on the switching pressure but should be quite small).

So the system is either DRS-activated or DRS-or-speed-activated, or Lotus is not very clever.
Or I'm wrong (hurts to even think of it).
n smikle wrote:I meant F1 technical when I said "here."
And when I said, whatever it was, I assumed someone who makes boastful, bold remarks can take stupid comebacks.

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N12ck
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Re: Lotus E20 Renault

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superdread wrote:
N12ck wrote: exactley which is why you cant rule out a DDRS effect, look at how big the Mclaren Snorkel was, I believe it is a dual system, but we cant know for deffinate until we see DRS open on the Lotus
They would be stupid not to, even if they have a passive system running, simply drill a hole that is covered by the DRS flap connect it to the passive activation duct and the additional pressure from the DRS covered hole should be enough to switch the F-Duct when the dynamic pressure is not enough (size of 'simple hole' depends on the switching pressure but should be quite small).

So the system is either DRS-activated or DRS-or-speed-activated, or Lotus is not very clever.
Or I'm wrong (hurts to even think of it).
n smikle wrote:I meant F1 technical when I said "here."
And when I said, whatever it was, I assumed someone who makes boastful, bold remarks can take stupid comebacks.
I cant think of any other way which it could be done both ways other than my way, possibly the pipes from the DRS maybe don't go down the middle pillar like I suggested, but my bet would be the idea would be the same just slight different routing maybe
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Ral
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Re: Lotus E20 Renault

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For what it's worth, Autosport.com's Jonathan Noble has this to say about it:
Jonathan Noble wrote: Details of the system first tested at the German GP remain scarce – and rivals do not yet have a full grasp of exactly how it works. But, if it starts delivering as the team hopes, then it will be a massive boost to Raikkonen and Grosjean's armoury, and its rivals will be able to do nothing about it in a hurry.

Thanks to some clever channelling of air through the engine cover and then up on to the rear wing, the idea is that when the Lotus DRS is closed it stalls the rear wing at high speed – providing an extra speed boost. It means that rather than the device doing what the Mercedes double DRS system does in providing that extra bit of speed just for qualifying, the Lotus version will work best in the race.

There is talk that it could help provide a 6-7 km/h speed boost on long straights where rivals cannot use their DRS – which would be a huge advantage in allowing Raikkonen and Grosjean to get past their rivals and defend on tracks with decent straights.

bhall
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Re: Lotus E20 Renault

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Jonathan Noble is a smart man.

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N12ck
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Re: Lotus E20 Renault

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bhallg2k wrote:Jonathan Noble is a smart man.
yes he is
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superdread
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Re: Lotus E20 Renault

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He might as well.

The snippet does simplify the problem a passive duct system has. The full benefit will only be available towards the end of the race (if they find a way to retune it after quali), otherwise it will activate late out of the corner slashing the speed gain.
Otherwise the system has be set to the maximum exit speed onto a straight in qualifiying, something that would retard the activation in the race even further. Changes in air temperature and pressure could affect the system if they tune it to a small margin (about 1kph, I would advise them to produce such a precise system, no use in surprising the drivers with when they are to loose rear DF).

(Noble could have mentioned him, so no discredit to him.)

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Kiril Varbanov
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Re: Lotus E20 Renault

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Whatever the case might be, we will soon get a good understanding whether it's stalling the rear wing or not.

I just hope that it won't get banned!

Back on my previous posts here - about the clever bits of Lotus' suspension, like using vertical dampers, etc I was sent the following picture:
http://www.sutton-images.com/preview.as ... 8ju276.jpg

I am, however, no big expert on suspensions, so I will appreciate if someone can explain what potential benefits may be packaged this way.

Huntresa
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Re: Lotus E20 Renault

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Kiril Varbanov wrote:Whatever the case might be, we will soon get a good understanding whether it's stalling the rear wing or not.

I just hope that it won't get banned!

Back on my previous posts here - about the clever bits of Lotus' suspension, like using vertical dampers, etc I was sent the following picture:
http://www.sutton-images.com/preview.as ... 8ju276.jpg

I am, however, no big expert on suspensions, so I will appreciate if someone can explain what potential benefits may be packaged this way.
Well if it has to do with the DRS it is alrdy banned for 2013.

Huntresa
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Re: Lotus E20 Renault

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I just thought of something funny when i was on the bus on my way to work...

Lets say the whole thing is passive and has NOTHING to do with the DRS, what if Lotus added the pylon to the RW to make it look like it had something to do with the DRS when they knew it was gonna get banned for next year, so that ppl believe it uses the DRS and therefor is banned for next year and wont develop anything but come 2013 Lotus still has it on its car cause it has nothing to do with the DRS and all the other teams then just missed alot of development on it.


I know this is farfetched but its still F1 we are discussing, it would be pretty hilarious if this was the case.

superdread
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Re: Lotus E20 Renault

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Kiril Varbanov wrote:Back on my previous posts here - about the clever bits of Lotus' suspension, like using vertical dampers, etc I was sent the following picture:
http://www.sutton-images.com/preview.as ... 8ju276.jpg

I am, however, no big expert on suspensions, so I will appreciate if someone can explain what potential benefits may be packaged this way.
Hmmm, I don't see any vertical dampers on the picture. Otherwise it's the standard layout, and that's all about aerodynamics (and CoG). So the rocker is directly behind the gearbox mounting to the engine, with a torsion bar spring and the dampers underneath the car. The result is the slimmest rear body and lowest CoG possible, but at the expense of having a longer pullrod, little space for the damper components (they can make them small enough, so no harm done) and setup is a little bit more complicated.
Huntresa wrote: Lets say the whole thing is passive and has NOTHING to do with the DRS, what if Lotus added the pylon to the RW to make it look like it had something to do with the DRS when they knew it was gonna get banned for next year, so that ppl believe it uses the DRS and therefor is banned for next year and wont develop anything but come 2013 Lotus still has it on its car cause it has nothing to do with the DRS and all the other teams then just missed alot of development on it.

I know this is farfetched but its still F1 we are discussing, it would be pretty hilarious if this was the case.
Is there any case where a team has waisted speed in order to deceive the other teams?

Huntresa
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Re: Lotus E20 Renault

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Who said anything about wasted speed? If the whole thing is passive which we dont know if it is and it works it gives them time on laps then its not wasted speed even with the pylon.