Legality of McLaren's "Butterfly" suspension

Here are our CFD links and discussions about aerodynamics, suspension, driver safety and tyres. Please stick to F1 on this forum.
acosmichippo
acosmichippo
8
Joined: 23 Jan 2014, 03:51
Location: Washington DC

Re: Legality of McLaren's "Butterfly" suspension

Post

richard_leeds wrote:The rules define the allowed geometry for the suspension arms. McLaren suspension complies with that geometry. End of story.

It's just like the rules about brake cooling, the teams can have any shape they like as long as it fits within the defined shape in the rules.
agreed, but what we don't know for sure is if they are "structural". If they are deemed to not be structural, then they are considered body work, and illegal.

bonjon1979
bonjon1979
30
Joined: 11 Feb 2009, 17:16

Re: Legality of McLaren's "Butterfly" suspension

Post

richard_leeds wrote:
bonjon1979 wrote:The big issue for me is that there are more than six suspension members. The top 'A' shaped suspension arm is two suspension members (the regs state that any suspension member splitting in two counts as two arms regardless of how it started). Then there is the lower wishbone. That's six on each side - so what are the other 4 at the back counted as? It's clearly more than six suspension members.
How is this different from the wishbone on the other cars?
Ha I was just deleting my post because I'm wrong! Ignore me. I can't count.

PhillipM
PhillipM
386
Joined: 16 May 2011, 15:18
Location: Over the road from Boothy...

Re: Legality of McLaren's "Butterfly" suspension

Post

acosmichippo wrote: agreed, but what we don't know for sure is if they are "structural". If they are deemed to not be structural, then they are considered body work, and illegal.
Of course they're structural, if you take the rear wishbone off, the suspension collapses.

Trocola
Trocola
6
Joined: 25 Jan 2012, 19:22
Location: Madrid, Spain

Re: Legality of McLaren's "Butterfly" suspension

Post

The same is happening with Mercedes' front cameras: They are where they are clearly for aerodinamic purposes and nobody says a word because the cameras are legal on their position and on their shape.

For me, the butterfly suspensions are 100% legal, but you can never know what the FIA will say when other teams ask for clarification.
I don't think McLaren had the idea and didn't ask FIA about the legality. That would be the first thing to do IMO. The second thing to do is make the whole suspension arm as a full piece, not a suspension arm and fitting the "mushroom" over it, because that would be bodywork and that would be ilegal.

Sorry for my english, I hope I explained myself right

acosmichippo
acosmichippo
8
Joined: 23 Jan 2014, 03:51
Location: Washington DC

Re: Legality of McLaren's "Butterfly" suspension

Post

PhillipM wrote:
acosmichippo wrote: agreed, but what we don't know for sure is if they are "structural". If they are deemed to not be structural, then they are considered body work, and illegal.
Of course they're structural, if you take the rear wishbone off, the suspension collapses.
I don't mean the whole wishbone, obviously. I mean the part that makes it that specific shape. Maybe that is the whole wishbone, but I don't think there's any way for us to know that for sure.

PhillipM
PhillipM
386
Joined: 16 May 2011, 15:18
Location: Over the road from Boothy...

Re: Legality of McLaren's "Butterfly" suspension

Post

acosmichippo wrote: I don't mean the whole wishbone, obviously. I mean the part that makes it that specific shape. Maybe that is the whole wishbone, but I don't think there's any way for us to know that for sure.
Whilst I can see it being a bolt on part for testing, I don't think many F1 teams would deliberately make a suspension member heavier than it would need to be when racing, I'd expect to see refined versions for race use.

rjsa
rjsa
51
Joined: 02 Mar 2007, 03:01

Re: Legality of McLaren's "Butterfly" suspension

Post

WilliamsF1 wrote:
rjsa wrote:
WilliamsF1 wrote:I dint understand Charlie Whiting,

Beam wing banned, Mclaren find a replacement solution for the beam wing, which i guess is legal, but then what is the point of banning the beam wing?

That's the whole problem with the way F1 is ruled.

Rulemakers cant outsmart designers, so each thing they impose constrains to one device it generates another strange apendix to the car, to be later dealt with again, generating another weird outcome.

They need to re-write it from scratch - the aero rules I mean.
Personally the rules are fine, feel the enforcement is not being done in the way it is to be. In this case it is clear (blatantly) that the purpose of the devices is aero and not so much structural. It should be clarified ASAP that it is outside the spirit of the rule and needs to be dealt with a heavy hand.

Delays in such clarifications gives room for political maneuvering and that just sucks.
I see it differently. A good example why the rules must be written right and not people decide what's in the spirit and what's not was the mass damper.

They just banned it to bring Renault down, and bring Renault down they did - see what's left of them now.

They keep patching the rule set to keep allowing some suff while trying to avoid other, and they will always be blindsised.

Rules need a rewirte from the bottom, with clear and concise rulling, leaving room for dvelopment in very well defined areas.

enkidu
enkidu
0
Joined: 20 May 2007, 09:26

Re: Legality of McLaren's "Butterfly" suspension

Post

rjsa wrote:
Rules need a rewirte from the bottom, with clear and concise rulling, leaving room for dvelopment in very well defined areas.
Then that wouldn't really be F1, as we all know the rules are read twice... Once to know the rules, twice to work out ways round them.

The mass damper was totally different as it was moving weights which is banned.

rjsa
rjsa
51
Joined: 02 Mar 2007, 03:01

Re: Legality of McLaren's "Butterfly" suspension

Post

enkidu wrote:
rjsa wrote:
Rules need a rewirte from the bottom, with clear and concise rulling, leaving room for dvelopment in very well defined areas.
Then that wouldn't really be F1, as we all know the rules are read twice... Once to know the rules, twice to work out ways round them.

The mass damper was totally different as it was moving weights which is banned.
That's with every set of rules. But this - to use programming slang - spaghetti set of rules is broken.

It wasn't then. It was banned on grounds of being a moving aerodnamic device.

enkidu
enkidu
0
Joined: 20 May 2007, 09:26

Re: Legality of McLaren's "Butterfly" suspension

Post

If they ban McLarens rear suspension then they will need to make everyones suspension in F1 just round tubes.

User avatar
Sebp
15
Joined: 09 Mar 2010, 22:52
Location: Surrounded

Re: Legality of McLaren's "Butterfly" suspension

Post

enkidu wrote:If they ban McLarens rear suspension then they will need to make everyones suspension in F1 just round tubes.
Something like this, you mean?

Image
No smartphone was involved in creating this message.

rjsa
rjsa
51
Joined: 02 Mar 2007, 03:01

Re: Legality of McLaren's "Butterfly" suspension

Post

See here what comes out of this patch rulling.http://www.autosport.com/news/report.php/id/112376

User avatar
Kiril Varbanov
147
Joined: 05 Feb 2012, 15:00
Location: Bulgaria, Sofia

Re: Legality of McLaren's "Butterfly" suspension

Post

Scarbs' take on it:

[youtube]http://www.youtube.com/watch?v=OAvonclHUpk[/youtube]

User avatar
KingHamilton01
3
Joined: 08 Jun 2012, 17:12

Re: Legality of McLaren's "Butterfly" suspension

Post

Kiril Varbanov wrote:Scarbs' take on it:

http://www.youtube.com/watch?v=OAvonclHUpk
Beat me to it, think this proves people wrong who think it isn't legal!
McLaren Mercedes

User avatar
FW17
170
Joined: 06 Jan 2010, 10:56

Re: Legality of McLaren's "Butterfly" suspension

Post

Is their a pin joint at the end of the butterfly element? if it is a pin joint does it not make for additional 2 elements?
Image