planetf1.com

It is currently Sun Oct 21, 2018 7:42 am

All times are UTC


Forum rules


Please read the forum rules



Post new topic Reply to topic
Author Message
PostPosted: Thu Oct 04, 2018 9:43 pm 
Offline
User avatar

Joined: Sun Jul 28, 2013 3:36 pm
Posts: 4862
Shamelessly lifted from GrumpyYoungMan's post in the Ferrari thread on AS...




FERRARIS SECRET LAUNCH BUTTON

Ferrari had been experiencing unusually competitive race starts for several races (Hockenheim, Silverstone) before Sky F1s Anthony Davidson spotted both Ferrari drivers holding an "invisible" button while waiting for the lights to go out. Immediately after this was broadcast, Ferrari seemed to lose their advantage off of the line.

So what is this button and what does it do?

Davidson posited that the button may have a role in clutch release off the start however the Ferrari is fitted with a clutch paddle on the steering wheel, the rules on clutch actuation cover dual methods of actuation.

"9.2.1 If multiple clutch operating devices are used, they must all have the same mechanical travel characteristics and be mapped identically."

It can also be seen in the video link that Vettel briefly removes his thumb from the button then places it back onto the button while waiting for the lights to go out and the car does not move. So if it is not the clutch then what else could it be?

While waiting on the start line at part throttle, the engine is spinning quite quickly but under very little load, i.e there is relatively little air flowing into the engine and combustion gases exiting the engine into the turbocharger. This will have the result of a slow turbocharger speed and low boost pressure immediately after the clutch is disengaged.

The MGU K cannot legally provide assistance until the car reaches 100kph and so the initial launch is completely dependant on the power transmitted from the internal combustion engine. Up until the car is traction limited, an increase in boost pressure will result in an improved race start.

There are no rules explicitly preventing a team installing a button allowing the driver to manually activate the MGU-H and spin the turbo up to a working speed. Holding such a button until the lights go out would result in zero turbo lag and instantaneous maximum boost pressure.

Of course, if you were fitting a button to the steering wheel which is only used two or three times per race, provides a performance advantage off the start line and you didn't particularly want your competitors to know you were doing such a thing it would make sense to install it underneath the steering wheel grip to create a barely perceptible lump.

Until an eagle eyed pundit spots it...
https://streamable.com/dr0bu

_______________________________


Genius and I'm not sure why they've removed it (Assuming they have going by "they seemed to lose their advantage off the line" after it was spotted by Ant). Doesn't sound illegal going by that description unless I'm missing something, just very clever.

_________________
"Clark came through at the end of the first lap so far ahead that we in the pits were convinced that the rest of the field must have been wiped out in an accident."
-Eddie Dennis, describing the dominance of Jim Clark in the Lotus 49 at Spa 1967


Top
 Profile  
 
PostPosted: Fri Oct 05, 2018 6:24 pm 
Offline

Joined: Sun Aug 28, 2011 8:48 pm
Posts: 2908
Location: UK
Lotus49 wrote:
Shamelessly lifted from GrumpyYoungMan's post in the Ferrari thread on AS...




FERRARIS SECRET LAUNCH BUTTON

Ferrari had been experiencing unusually competitive race starts for several races (Hockenheim, Silverstone) before Sky F1s Anthony Davidson spotted both Ferrari drivers holding an "invisible" button while waiting for the lights to go out. Immediately after this was broadcast, Ferrari seemed to lose their advantage off of the line.

So what is this button and what does it do?

Davidson posited that the button may have a role in clutch release off the start however the Ferrari is fitted with a clutch paddle on the steering wheel, the rules on clutch actuation cover dual methods of actuation.

"9.2.1 If multiple clutch operating devices are used, they must all have the same mechanical travel characteristics and be mapped identically."

It can also be seen in the video link that Vettel briefly removes his thumb from the button then places it back onto the button while waiting for the lights to go out and the car does not move. So if it is not the clutch then what else could it be?

While waiting on the start line at part throttle, the engine is spinning quite quickly but under very little load, i.e there is relatively little air flowing into the engine and combustion gases exiting the engine into the turbocharger. This will have the result of a slow turbocharger speed and low boost pressure immediately after the clutch is disengaged.

The MGU K cannot legally provide assistance until the car reaches 100kph and so the initial launch is completely dependant on the power transmitted from the internal combustion engine. Up until the car is traction limited, an increase in boost pressure will result in an improved race start.

There are no rules explicitly preventing a team installing a button allowing the driver to manually activate the MGU-H and spin the turbo up to a working speed. Holding such a button until the lights go out would result in zero turbo lag and instantaneous maximum boost pressure.

Of course, if you were fitting a button to the steering wheel which is only used two or three times per race, provides a performance advantage off the start line and you didn't particularly want your competitors to know you were doing such a thing it would make sense to install it underneath the steering wheel grip to create a barely perceptible lump.

Until an eagle eyed pundit spots it...
https://streamable.com/dr0bu

_______________________________


Genius and I'm not sure why they've removed it (Assuming they have going by "they seemed to lose their advantage off the line" after it was spotted by Ant). Doesn't sound illegal going by that description unless I'm missing something, just very clever.

Interesting read :thumbup:

I would speculate that, although this was technically legal, it did go against the spirit of the regulations and so the FIA issued a clarification ordering them to remove it.

Ant Davidson is still a Mercedes employee is he not? He may have made quite a contribution to their title challenge here.


Top
 Profile  
 
PostPosted: Mon Oct 08, 2018 9:28 am 
Offline

Joined: Tue May 05, 2009 11:31 am
Posts: 6446
Was the funny dial/trigger/thing at the back of Vettel's steering wheel ever explained?


Top
 Profile  
 
PostPosted: Mon Oct 08, 2018 11:08 am 
Offline
User avatar

Joined: Sun Apr 05, 2009 5:52 am
Posts: 2605
Siao7 wrote:
Was the funny dial/trigger/thing at the back of Vettel's steering wheel ever explained?
I'd guess that it was used to operate one of these...

_________________
Where I'm going, I don't need roads


Top
 Profile  
 
PostPosted: Mon Oct 08, 2018 11:18 am 
Offline

Joined: Tue May 05, 2009 11:31 am
Posts: 6446
tootsie323 wrote:
Siao7 wrote:
Was the funny dial/trigger/thing at the back of Vettel's steering wheel ever explained?
I'd guess that it was used to operate one of these...

Haha, I fell for it and opened the link!


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic

All times are UTC


Who is online

Users browsing this forum: Black_Flag_11, Lojik, TheGiantHogweed, UnlikeUday and 1 guest


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Group