Vodafone McLaren MP4-27 Mercedes

A place to discuss the characteristics of the cars in Formula One, both current as well as historical. Laptimes, driver worshipping and team chatter do not belong here.
beelsebob
beelsebob
85
Joined: 23 Mar 2011, 15:49
Location: Cupertino, California

Re: Vodafone McLaren MP4-27 Mercedes

Post

n smikle wrote:
seinfeld wrote:that front wing has had elements removed. and they still picked up downforce! WTF.the new wing looks much more simple. yet Hamilton Smashed that last race. goes to show 20 element front wings are not as important. can anyone tell me why removing those elements gave them more D/F
A lot of assumptions you make though.
The FW very likely has LESS downforce.
There might be a NET downforce gain, down the car OR... same down-force but more aero-efficiency so they can turn up the the rear wing. Only Paddy Lowe can tell you.
I would bet heavily that the front wing produces about the same amount of downforce, but in using fewer elements, and fewer cascades, also allows them to provide a cleaner flow of air, and increase downforce down the car.

In other words, the net effect would be that the ballance will have gone rearwards, but that that's not because of losing front downforce.

tok-tokkie
tok-tokkie
36
Joined: 08 Jun 2009, 16:21
Location: Cape Town

Re: Vodafone McLaren MP4-27 Mercedes

Post

Like these wonderful aircraft that went on to sweep everything else from the sky:

Image
Philips 1904

Image
1907 after some more development.

Image
1911 refining the idea.

Full story here: http://www.ctie.monash.edu.au/hargrave/phillips.html

beelsebob
beelsebob
85
Joined: 23 Mar 2011, 15:49
Location: Cupertino, California

Re: Vodafone McLaren MP4-27 Mercedes

Post

tok-tokkie wrote:Like these wonderful aircraft that went on to sweep everything else from the sky:
Hehe, exactly, these were my inspiration for my amazing front wing above.

Notably, modern airliners do still have a mode in which they just pile on as many wing elements as they can – it's exactly when they don't care about the amount of drag they're producing, as they're coming in to land:

Image

Caito
Caito
13
Joined: 16 Jun 2009, 05:30
Location: Switzerland

Re: Vodafone McLaren MP4-27 Mercedes

Post

beelsebob wrote:
tok-tokkie wrote:Like these wonderful aircraft that went on to sweep everything else from the sky:
Hehe, exactly, these were my inspiration for my amazing front wing above.

Notably, modern airliners do still have a mode in which they just pile on as many wing elements as they can – it's exactly when they don't care about the amount of drag they're producing, as they're coming in to land:
Many actual airplanes also have leading edge slats(look wiki).

There are many flap positions in a regular airliner. The most extreme one, as seen in the pic(for landing) is actually made to generate a lot of drag. That way the airplane can have lower landing speeds. You could never take off with such a configuration.


That does not apply to F1 ( I think) creating downforce regardless of drag, that would be too easy.
Come back 747, we miss you!!

RB7ate9
RB7ate9
2
Joined: 13 Jul 2011, 03:03

Re: Vodafone McLaren MP4-27 Mercedes

Post

I, too, was greatly amazed by the performance had with the Lotus-style FW. Even Button was able to get the pace through in the race.

It makes you really wonder about the Lotus chassis what they could do if they had a bit more straight-line speed with a Mercedes or Ferrari chassis. They used that FW style all year and Raikkonen is 3rd in the championship! On his first season back!

Is there a FW comparison thread per season?

Just_a_fan
Just_a_fan
591
Joined: 31 Jan 2010, 20:37

Re: Vodafone McLaren MP4-27 Mercedes

Post

beelsebob wrote: I would bet heavily that the front wing produces about the same amount of downforce, but in using fewer elements, and fewer cascades, also allows them to provide a cleaner flow of air, and increase downforce down the car.

In other words, the net effect would be that the ballance will have gone rearwards, but that that's not because of losing front downforce.
I agree. The cascades are less about front wing downforce and more to do with conditioning the flow to the rest of the car. The outer cascades are still there and are probably dealing with how the air flows around the front tyre.
If you are more fortunate than others, build a larger table not a taller fence.

beelsebob
beelsebob
85
Joined: 23 Mar 2011, 15:49
Location: Cupertino, California

Re: Vodafone McLaren MP4-27 Mercedes

Post

Caito wrote:That does not apply to F1 ( I think) creating downforce regardless of drag, that would be too easy.
There's one time it does – Monaco. The rules are so restricted though that they no longer do really crazy things even there.

Crucial_Xtreme
Crucial_Xtreme
404
Joined: 16 Oct 2011, 00:13
Location: Charlotte

Re: Vodafone McLaren MP4-27 Mercedes

Post

Just_a_fan wrote: I agree. The cascades are less about front wing downforce and more to do with conditioning the flow to the rest of the car. The outer cascades are still there and are probably dealing with how the air flows around the front tyre.
+1

And it obviously worked well. It seems Lotus, RB & McLaren are onto something. It seems the slight upturn of the FW main(upper)element(common on all 3 cars) is providing the necessary vortex and taking place of the R-shaped cascade, at least on the MaCa.

Crucial_Xtreme
Crucial_Xtreme
404
Joined: 16 Oct 2011, 00:13
Location: Charlotte

Re: Vodafone McLaren MP4-27 Mercedes

Post

New McLaren FW
In the United States, McLaren have introduced a new front wing, as shown in the lower drawing (upper drawing shows previous wing), which was evaluated at the young driver test in Abu Dhabi earlier this month. The main profile features a more curved central section (1), whilst the double cascade flaps (2) have been replaced by a vertical fin (2), similar in style to that on the Lotus. The endplate has also been modified. The small inside addition has been removed (4) and the endplate's shape is more rounded near the tyres (5).

Image

Coefficient
Coefficient
20
Joined: 11 Mar 2011, 23:29
Location: North West - UK

Re: Vodafone McLaren MP4-27 Mercedes

Post

Yeah, the last Heath Robinson Downforce appendage I recall at Monaco was on the Arrows and Jordan in practice 2001. I think Bernie wanted them removed because they looked silly but did it on safety grounds so the teams couldn't argue.

http://www.f1wolf.com/2008/11/are-reall ... these.html
"I started out with nothing and I've still got most of it".

Crucial_Xtreme
Crucial_Xtreme
404
Joined: 16 Oct 2011, 00:13
Location: Charlotte

Re: Vodafone McLaren MP4-27 Mercedes

Post

Gary Anderson's Analysis of the new McLaren FW

Image
Via AutoSport

User avatar
turbof1
Moderator
Joined: 19 Jul 2012, 21:36
Location: MountDoom CFD Matrix

Re: Vodafone McLaren MP4-27 Mercedes

Post

beelsebob wrote:
Caito wrote:That does not apply to F1 ( I think) creating downforce regardless of drag, that would be too easy.
There's one time it does – Monaco. The rules are so restricted though that they no longer do really crazy things even there.
I think that goes as well for Singapore and perhaps even Hungary.

I do think the new FW is producing less DF (with same flap angle). They have also increased the curves in the main plane, a sign they are sacrificing front downforce to redirect the air better to the rear to gain rear downforce. Probably they just compensate this with more FW flap angle. Overall, the new solution would be more aero efficient over the complete car, but the aero efficiency shifts a bit more to the back, sacrificing aero efficiency at the front (bigger flap angle) and adding better aero efficiency at the back (better air to the diffuser, which adds more downforce with very little drag penalty).
#AeroFrodo

User avatar
PlatinumZealot
551
Joined: 12 Jun 2008, 03:45

Re: Vodafone McLaren MP4-27 Mercedes

Post

Crucial_Xtreme wrote:Gary Anderson's Analysis of the new McLaren FW
Via AutoSport
Great explanation by GA. The right man for the job.
🖐️✌️☝️👀👌✍️🐎🏆🙏

stefan_
stefan_
696
Joined: 04 Feb 2012, 12:43
Location: Bucharest, Romania

Re: Vodafone McLaren MP4-27 Mercedes

Post

Brazil:

Image

Image

via C. Malbranque
"...and there, very much in flames, is Jacques Laffite's Ligier. That's obviously a turbo blaze, and of course, Laffite will be able to see that conflagration in his mirrors... he is coolly parking the car somewhere safe." Murray Walker, San Marino 1985

beelsebob
beelsebob
85
Joined: 23 Mar 2011, 15:49
Location: Cupertino, California

Re: Vodafone McLaren MP4-27 Mercedes

Post

Interesting... old front wings.