For all you CLK lovers...
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From: Beverly Hills
2017 C63 | 2018 E63
For all you CLK lovers...
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Member
Joined: Nov 2001
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From: Wilmington, NC
CLK 320
Winshield Wiper
It may be regulation in the DTM that they cannot remove it. Or I think they may also race in the rain, I am not sure. What I do know is that in the upright position it causes less wind resistance. I read that a while ago as the DTM was getting started. The other cars in the DTM do the same thing. I have seen pictures of the opal astra with a singular wiper that is stuck in the vertical position. The article said they do it to reduce wind resistance.
MBWorld Fanatic!
Joined: Dec 2001
Posts: 1,906
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From: cali
2002 mercedes clk coupe
Originally posted by Angel_Dust
mach 430:
just wanted to ask if you know why those gt cars always drive with the windshield wiper in the middle position....what possible advantage could that give the drivers...
thanks in advance
mach 430:
just wanted to ask if you know why those gt cars always drive with the windshield wiper in the middle position....what possible advantage could that give the drivers...
thanks in advance
oh **** i just noticed the wipers y are they in the middle?
soem explain please
MBWorld Fanatic!
Joined: Dec 2001
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From: cali
2002 mercedes clk coupe
Re: Winshield Wiper
Originally posted by bmac002
It may be regulation in the DTM that they cannot remove it. Or I think they may also race in the rain, I am not sure. What I do know is that in the upright position it causes less wind resistance. I read that a while ago as the DTM was getting started. The other cars in the DTM do the same thing. I have seen pictures of the opal astra with a singular wiper that is stuck in the vertical position. The article said they do it to reduce wind resistance.
It may be regulation in the DTM that they cannot remove it. Or I think they may also race in the rain, I am not sure. What I do know is that in the upright position it causes less wind resistance. I read that a while ago as the DTM was getting started. The other cars in the DTM do the same thing. I have seen pictures of the opal astra with a singular wiper that is stuck in the vertical position. The article said they do it to reduce wind resistance.
sounds logical
thanks
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CLK 430
It may be regulation in the DTM that they cannot remove it. Or I think they may also race in the rain, I am not sure. What I do know is that in the upright position it causes less wind resistance. I read that a while ago as the DTM was getting started. The other cars in the DTM do the same thing. I have seen pictures of the opal astra with a singular wiper that is stuck in the vertical position. The article said they do it to reduce wind resistance.
just want an explanation how that wiper can cause wind resistance....
thanks in advance
Out Of Control!!
Joined: Nov 2001
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From: Southern CA
Basically, anything on the exterior car will cause wind resistance, in some cases good (spoilers) and in others bad (excess drag). I have not seen a wind-tunnel diagram for the CLK, so I can not tell you how much wind hits the windshield wiper in any position. But, with the car traveling straight, which would cause air to hit the front of the car and move up as it can not go through the car, one would want the front to be as aerodynamically correct as possible. When the windshield wiper is in a horizontal position, it spans about 2 ft horizontally. This is 2 ft of drag (how much, I do not know) that can be reduce to inches when the windshield wiper is vertical (in the middle). With the wiper straight up-and-down, the wind traveling against the car is only exposed to a surface apprx 1" wide (didn't measure, just guessing). It is much easier for air, or any substance, to go around an object 1" wide than 2 ft.
Does this help?
Does this help?
Last edited by Mach430; Apr 18, 2002 at 03:26 PM.
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Cayenne GTS, Cayenne Turbo
Um.. so if it's horizontal, the wind "sees" a 2ft wide wiper but only a 1" tall wiper. When vertical, the wind "sees" a 1" wide wiper but still a 2' wide wiper. It's the same surface area. Why will wind resistance only matter on a horizontal plane? Can you explain in real, scientific, and concise detail?
Originally posted by Mach430
Basically, anything on the exterior car will cause wind resistance, in some cases good (spoilers) and in others bad (excess drag). I have not seen a wind-tunnel diagram for the CLK, so I can not tell you how much wind hits the windshield wiper in any position. But, with the car traveling straight, which would cause air to hit the front of the car and move up as it can not go through the car, one would want the front to be as aerodynamically correct as possible. When the windshield wiper is in a horizontal position, it spans about 2 ft horizontally. This is 2 ft of drag (how much, I do not know) that can be reduce to inches when the windshield wiper is vertical (in the middle). With the wiper straight up-and-down, the wind traveling against the car is only exposed to a surface apprx 1" wide (didn't measure, just guessing). It is much easier for air, or any substance, to go around an object 1" wide than 2 ft.
Does this help?
Basically, anything on the exterior car will cause wind resistance, in some cases good (spoilers) and in others bad (excess drag). I have not seen a wind-tunnel diagram for the CLK, so I can not tell you how much wind hits the windshield wiper in any position. But, with the car traveling straight, which would cause air to hit the front of the car and move up as it can not go through the car, one would want the front to be as aerodynamically correct as possible. When the windshield wiper is in a horizontal position, it spans about 2 ft horizontally. This is 2 ft of drag (how much, I do not know) that can be reduce to inches when the windshield wiper is vertical (in the middle). With the wiper straight up-and-down, the wind traveling against the car is only exposed to a surface apprx 1" wide (didn't measure, just guessing). It is much easier for air, or any substance, to go around an object 1" wide than 2 ft.
Does this help?
Newbie
Joined: Mar 2002
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2002
less moving parts
The simple answer has nothing to do with aerodynamics.
The wiper does not need to span the entire window on a racer, only the drivers direct view. A more complicated, and heavier mechanism is required for a reciprocating wiper. The straight up, and down wiper only has to stroke left to right 45 deg in each direction, no reciprocation necessary.
The wiper does not need to span the entire window on a racer, only the drivers direct view. A more complicated, and heavier mechanism is required for a reciprocating wiper. The straight up, and down wiper only has to stroke left to right 45 deg in each direction, no reciprocation necessary.
Last edited by bpoteate; Apr 18, 2002 at 11:24 PM.
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From: Bahrain
R129 SL55 AMG & W208 CLK55 AMG
Oh cmon you guys...whats the matter with u.... i know the weekends cummin up!
Answer this logically pls:
If u stick your hand out of the car when travelling at high speed, which position will cause resisitance? Horizontal or vertical? Remember that the winshield is also slanted to ease air flow. Trust me guys, there's a difference and you'll feel it if it were your hand. Secondly, at those speeds and cornering characteristics... those wipers would snap and fly off easily!!
Would you rather have the end of the wiper support facing the direction of the air or perpindicular to it?
Physics boys and girls...physics!!!!
Answer this logically pls:
If u stick your hand out of the car when travelling at high speed, which position will cause resisitance? Horizontal or vertical? Remember that the winshield is also slanted to ease air flow. Trust me guys, there's a difference and you'll feel it if it were your hand. Secondly, at those speeds and cornering characteristics... those wipers would snap and fly off easily!!
Would you rather have the end of the wiper support facing the direction of the air or perpindicular to it?
Physics boys and girls...physics!!!!
