McLaren MP4-27 Mercedes (pre-launch speculation)

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aleks_ader
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Joined: 28 Jul 2011, 08:40

Re: McLaren MP4-27 Mercedes

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wesley123 wrote:I cannot confirm it any way but the point of the u-sidepod was that it allows more air to the beam wing. I think that by allowing air between the U flow all the way over the crashbox above and under the beamwing you can create better downforce. The route of this is much shorter then when you compare it to Red Bull's for example.

The snowplough I doubt it, afterall they have to balance out the rear and with the lower nose I think there isnt enough area to let the snowplough work good. Apart from that, I think that just the regular barge board under the nose are more efficient and less drag generating

I think snow plow generetes less down force BUT less drag!!!


Other option is also this style of combination of very low nose and this composition! (arrows and in the circle)
Image
"And if you no longer go for a gap that exists, you're no longer a racing driver..." Ayrton Senna

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dren
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Re: McLaren MP4-27 Mercedes

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The nose for 2012 cars isn't that much lower. The Mclaren's nose I don't expect to change much at all.
Honda!

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dren
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Re: McLaren MP4-27 Mercedes

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aleksandergreat wrote:
wesley123 wrote:I cannot confirm it any way but the point of the u-sidepod was that it allows more air to the beam wing. I think that by allowing air between the U flow all the way over the crashbox above and under the beamwing you can create better downforce. The route of this is much shorter then when you compare it to Red Bull's for example.

The snowplough I doubt it, afterall they have to balance out the rear and with the lower nose I think there isnt enough area to let the snowplough work good. Apart from that, I think that just the regular barge board under the nose are more efficient and less drag generating

I think snow plow generetes less down force BUT less drag!!!


Other option is also this style of combination of very low nose and this composition! (arrows and in the circle)
Image
Those wings are banned. A low swooping nose creates downforce itself from the air physically hitting it also.
Honda!

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aleks_ader
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Re: McLaren MP4-27 Mercedes

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I think that u pods design is perfect for side periscoped exaust wich is market with arrow nuber 1

Image

Ehaust is poited to the braking duct (arrow number 2)!
creadet vortex witch is some sort of cusion(arrow 3) to prevent mix hot ad cooling air belov in front cooling duct, Cooling duct is low almost on the bottom point of the wheel!

Image

You can also see below that exhaust gases are pointed to the braking "wingly" duct (upper picture, arrow 4. I will do to just little extend the "wings" or slots, taht is i represendet with 3 horizontal lines...
"And if you no longer go for a gap that exists, you're no longer a racing driver..." Ayrton Senna

wesley123
wesley123
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Re: McLaren MP4-27 Mercedes

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As I 'design' my own f1 car and go for the U-sidepod next year I have cheked all those things and I wanted to extract more from the U sidepod to get an as clean as possible tunnel. That in turn meant that o exhaust exits out of the top sidepod surface(although this is mainly because of the sidepod height in that area).
"Bite my shiny metal ass" - Bender

beelsebob
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Re: McLaren MP4-27 Mercedes

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aleksandergreat wrote:I think that u pods design is perfect for side periscoped exaust wich is market with arrow nuber 1

Ehaust is poited to the braking duct (arrow number 2)!
creadet vortex witch is some sort of cusion(arrow 3) to prevent mix hot ad cooling air belov in front cooling duct, Cooling duct is low almost on the bottom point of the wheel!

You can also see below that exhaust gases are pointed to the braking "wingly" duct (upper picture, arrow 4. I will do to just little extend the "wings" or slots, taht is i represendet with 3 horizontal lines...
Pretty sure you've got your placement wrong. I expect this would simply create lots of high speed energetic air coming out of the exhaust try and mix with lots of slightly slower cold air flowing through the U, and create a lot of eddies. What I'd expect is instead that (if they keep U-pods) they'll mount the exhaust on the end of the side-barrier, and in doing so do what red bull did this year, except on the top of the car. That is, they'll create a curtain of hot air to keep their high speed air contained and nicely aimed at the beam wing.

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aleks_ader
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Re: McLaren MP4-27 Mercedes

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beelsebob wrote: they'll mount the exhaust on the end of the side-barrier, and in doing so do what red bull did this year, except on the top of the car.


And what i did? mount on the side of the car
That is, they'll create a curtain of hot air to keep their high speed air contained and nicely aimed at the beam wing.
Most of air is already nicely aimed into u pods slot with plow design!

You solution is not bad but i thik is less eficiet... in matters of downforce flow disturbance
"And if you no longer go for a gap that exists, you're no longer a racing driver..." Ayrton Senna

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aleks_ader
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Re: McLaren MP4-27 Mercedes

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What i can only do diferent with my design is modify the exhaus exit height! Little lower will be better to make side wind curtain towards betwen tire and rear wing side panel?
"And if you no longer go for a gap that exists, you're no longer a racing driver..." Ayrton Senna

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ringo
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Re: McLaren MP4-27 Mercedes

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Can someone post the exhaust positioning regs?
For Sure!!

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aleks_ader
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Re: McLaren MP4-27 Mercedes

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ringo wrote:Can someone post the exhaust positioning regs?
I a little screwed up the picture the exit of axhaoust must be little back and toward the engine longitudional line


Here regs

[youtube]http://www.youtube.com/watch?v=xgR5YX0d ... plpp_video[/youtube]

If i will be totally sticked to the 2012 regs is such blowing imposible or illegeal. Apparently the rules banned the braking "wings"... So the exhaus must direkted in other poin in the car mavbe the best solution is toward rear wing endplate...
"And if you no longer go for a gap that exists, you're no longer a racing driver..." Ayrton Senna

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Shrieker
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Re: McLaren MP4-27 Mercedes

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Aren't we going to see serious limitations on engine mappings next year ? What good is there in positoning the exhaust to generate more df anymore... Even if someone finds a loophole to use exhaust gasses efectively in the diffuser/beam wing area, the FIA aren't really going to like are they ? The wording of the rule for next season says (or should say) "no aero benefit from exhaust gasses", so I doubt anyone will be able to get away with it.
Last edited by Shrieker on 13 Dec 2011, 19:44, edited 2 times in total.
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beelsebob
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Re: McLaren MP4-27 Mercedes

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Shrieker wrote:Aren't we going to see serious limitations on engine mappings next year ? What good is there in positoning the exhaust to generate more df anymore... Even if someone finds a loophole to use exhaust gasses efectively in the diffuser/beam wing area, the FIA aren't really going to like are they ?
It still helps you in high speed corners.

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MIKEY_!
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Re: McLaren MP4-27 Mercedes

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I expect they'll issue some clarifications if anyone gets clever. The regs look pretty watertight to me.

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ringo
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Re: McLaren MP4-27 Mercedes

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Where are they?

Can i have them in words please. The images and videos aren't really cutting it.

Does anyone have the regulations as will be quoted in the 2012 technical regs. ?
For Sure!!

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aleks_ader
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Re: McLaren MP4-27 Mercedes

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2012 Rules (Acording to the Scrabs is hard to find official 2012regs)

For 2012 rules tightly dictate the position of the last 10cm section of the exhaust pipe.

- exhaust must only transfer fluids from the engines exhaust ports to the tail pipe exit. i.e. no other gasses can enter or exit the exhaust along any point in its length.

- tailpipe section is tightly defined, the last 100mm must be a round thinwall circular section = 75mm internal diameter with no obstructions

Then this last 100mm of pipe must be entirely within a specific "box" area on the car.
-boxed space has to 500mm from the rear axle line and 250mm above the reference plane. This area is however very generous with a length of 700mm and height of 350mm. Thus the top of the exhaust could be as high as 600m above the reference plane, around the same height as the top of the rear tyres.
- box must be more than 200mm and less than 500mm from the cars centre line. So exhausts could not exit tightly placed along the cars centreline.
Within each of the boxes the exhaust must be positioned within a range of angles. From the side the exhaust must exit tailpipe-up and between 10 to 30 degrees from the reference plane.
- tailpipe must be plus or minus 10 degrees from the cars centreline.

Image
"And if you no longer go for a gap that exists, you're no longer a racing driver..." Ayrton Senna