McLaren MP4-26 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.
wesley123
wesley123
204
Joined: 23 Feb 2008, 17:55

Re: McLaren MP4-26 Mercedes

Post

Those rings where on there since the first test.

The second intake in trhe airbox seems to be partly covered up though, there seems to be some sort of weird panel there.
"Bite my shiny metal ass" - Bender

User avatar
forty-two
0
Joined: 01 Mar 2010, 21:07

Re: McLaren MP4-26 Mercedes

Post

I think they were trying a different airbox design today:

Image
The answer to the ultimate question, of life, the Universe and ... Everything?

thestig84
thestig84
10
Joined: 19 Nov 2009, 13:09

Re: McLaren MP4-26 Mercedes

Post

You might be right with some development in the airbox area but not today. Remember they had today off and are running Friday and Saturday.

User avatar
ringo
230
Joined: 29 Mar 2009, 10:57

Re: McLaren MP4-26 Mercedes

Post

Being a Mclaren fan i can't believe we have a car that is inherently handicapped.
Hamilton said: "Do I believe I have a car to win the world championship at the moment? I don't. No.

"But that doesn't mean it won't become a world championship-winning car.
.........
... finding where your weaknesses are so you can build on them and fix them.

"We've been focusing on those, but we definitely have several issues that are not as easy to rectify as we had hoped."
Hamilton is right. And we're going into the season with a crippled car.

Though i think there is some hope. The issue is not the L shaped sidepods themselves. It's the price that the car pays to have it implemented.

There are 3 main things that were risked, that put them between a rock and a hard place in terms of dificult issues.

1. Fuel tank length.
2. Radiator shape and length
3. Cooling volume

The tank is too long. I think it was for aero reasons and the L shape cut why they narrowed it. A long tanks put the engine too far back in the car, which puts the manifolds too far back where you don't want them.

2. The radiators have to lie flatter with the L shape pods. This takes up too much floor space.
The shape having most of it at the bottom, means there is very little that can be place at the base of it without affecting the heat transfer.

3. The L shape restricts cooling volume and cooling flow paths. If you look carefully at the car you will notice that a a big cooling tunnel cannot pass from the wider areas of the side pods to the top of the engine like red bull.
Placing a big cooling tunnel would come in the way of the L trough. So Mclaren put this cooling path back more over the engine, much further back than most teams, in order to avoid crossing path and obstructing the L shape trough. You can see this path carved about the air filter on the engine.
This compromise relegates a good amount of the flow to the floor.
This is why the side pods are so volumous at the end. They have no choice but to put cooling flow there all becuase it can't go up and across without blocking the L trough.

The problems don't end there either.

The ehxuast manifold cannot be shaped high and narrow and pushed back similar to redbull or renault. It will come in the way of the L trough and also block cooling flow.
I think they want to copy the redbull and ferrari exhuasts, but the headers simply need to be back more and taller.
So this is another difficult problem.

The car is as fudged up as you can imagine. How do they fix all these problems?

They need to sacrifice engine power. :)

It sounds unrelated, but if Mclaren want to climb out of the problems they need to make some desperate moves.

1. Move the exhausts back. This can't be done with the radiators in the way. and it will block the cooling.
2. maintain respectable cooling flow
3. may have make the exhuast a little more entangled and compact.

in summary
Image

4. A completely revolutionary radiator design, that will give the radiator fabricators hell. Maybe negtively affect how steady a flow reaches it's fins, and may incur pumping losses, but things can't get any worse.


It could be a small price to pay to break away from the issues. This could definitely get some well need space at the rear, and also allow them to use the cannon exhausts.
For Sure!!

User avatar
zgred
9
Joined: 16 Mar 2009, 13:02

Re: McLaren MP4-26 Mercedes

Post

Image

Image

Image

Image

Image

User avatar
scuderiafan
11
Joined: 06 Nov 2010, 15:14
Location: United States

Re: McLaren MP4-26 Mercedes

Post

McLaren went with a more sophisticated design and they're paying the price. Now they have a sophisticated issue to work out.
"You're so angry that you throw your gloves down, and the worst part is; you have to pick them up again." - Steve Matchett

Patiently waiting...

Robbobnob
Robbobnob
33
Joined: 21 May 2010, 04:03
Location: Auckland, New Zealand

Re: McLaren MP4-26 Mercedes

Post

Great points ringo.

I also believe the L-shape sidepods also limit the amount of air flowing around the side of the car compared to the conventional sidepods, though they are trying something novel and unique by creating flow over the top to the beam wing i cant help but think the channel would add friction elements by increasing the surface area for flow to pass through, therefore creating more of a bounday layer effect.
"I continuously go further and further learning about my own limitations, my body limitations, psychological limitations. It's a way of life for me." - Ayrton Senna

User avatar
forty-two
0
Joined: 01 Mar 2010, 21:07

Re: McLaren MP4-26 Mercedes

Post

thestig84 wrote:You might be right with some development in the airbox area but not today. Remember they had today off and are running Friday and Saturday.
Whoops! you're absolutely right, shame on me.

All these pre-season days are starting to meld into one for me. Bring on the first race weekend F1, I'm suffering withdrawal symptoms!
The answer to the ultimate question, of life, the Universe and ... Everything?

creedbratton
creedbratton
0
Joined: 26 Mar 2010, 12:22
Location: Melbourne

Re: McLaren MP4-26 Mercedes

Post

It looks to me like the mirrors are creating turbulence, which they are now trying to correct for.

conni
conni
0
Joined: 07 Jan 2010, 22:09

Re: McLaren MP4-26 Mercedes

Post

heard today that they are building a new chassis as this one isnt very good

conni

ajdavison2
ajdavison2
30
Joined: 08 Dec 2010, 12:41

Re: McLaren MP4-26 Mercedes

Post

source?

conni
conni
0
Joined: 07 Jan 2010, 22:09

Re: McLaren MP4-26 Mercedes

Post

cant say trade secret

conni

Owen.C93
Owen.C93
177
Joined: 24 Jul 2010, 17:52

Re: McLaren MP4-26 Mercedes

Post

It seems odd to create a new car if it is better than 09, perhaps they are having a bit of a rethink at the rear after so many teams have gone down the red-bull exhaust route.
Motorsport Graduate in search of team experience ;)

wesley123
wesley123
204
Joined: 23 Feb 2008, 17:55

Re: McLaren MP4-26 Mercedes

Post

he was talking about a new tub i guess
"Bite my shiny metal ass" - Bender

Owen.C93
Owen.C93
177
Joined: 24 Jul 2010, 17:52

Re: McLaren MP4-26 Mercedes

Post

wesley123 wrote:he was talking about a new tub i guess
That's even more confusing after Lewis said the handling was actually the best he has had in a few years, it's just aero where they are struggling.

Biggest priority ATM is reliability I would have though.
Motorsport Graduate in search of team experience ;)