Minimizing drag at 140mph+

[jakehammer2000]

mine for comparison. tilted way back on the wheel more like a parachute..

[LittleBlackDuck]

I am surprised that nobody has mentioned the green box (transponder I assume) cable-tied to the front forks. That would cause a nice lot of turbulence and could also affect cooling.

I would consider flattening and bending the "beak" of the front fender downwards to reduce air getting under it. Also, what are the cable loops on the lower right of the bike?

Also, have you tuft tested the front fairing? I think the sculpting in the center that is covered by the racing number could be tuned a bit - maybe the number might have to be stretched across tighter to reduce the "valleys".

At the speeds you are talking about, these small details may all add up to something significant.

Simon

[gumby79]

Aerodynamic Streamlining Template

Ill have to track down the quotes. I think it may have ben in Aerodynamic Streamlining Template: Part-C
You are more interested in the top view. . The 0 point would be your elbows.

[LittleBlackDuck]

A bit of a tongue in cheek one here - have you considered body modifications like narrowing your shoulders?

Getting more serious, some of the tabs and stuff on the shoulders of your leathers will also trip up the air flow. Smoothing them with the "sharkskin" type finish may also help.

Simon

[jakehammer2000]

You are right, that is my transponder. The position is not mandated, I could experiment with mounting it somewhere higher inside the fairing. Would have to test if that causes timing errors from obstructions..

I am not sure what you see as cable loops, but maybe you are looking at brake lines or throttle/clutch cables?

I could find a way to de-sculpt that transition from bodywork to windscreen. It's like that as a yamaha styling.

Originally Posted by LittleBlackDuck

I am surprised that nobody has mentioned the green box (transponder I assume) cable-tied to the front forks. That would cause a nice lot of turbulence and could also affect cooling.

I would consider flattening and bending the "beak" of the front fender downwards to reduce air getting under it. Also, what are the cable loops on the lower right of the bike?

Also, have you tuft tested the front fairing? I think the sculpting in the center that is covered by the racing number could be tuned a bit - maybe the number might have to be stretched across tighter to reduce the "valleys".

At the speeds you are talking about, these small details may all add up to something significant.

Simon

[jakehammer2000]

For narrowing shoulders, are you referring to positioning or body composition?

I am a bit reluctant to attempt to modify the suit- it's $2000 of aussie roadkill and composite armors.

Originally Posted by LittleBlackDuck

A bit of a tongue in cheek one here - have you considered body modifications like narrowing your shoulders?

Getting more serious, some of the tabs and stuff on the shoulders of your leathers will also trip up the air flow. Smoothing them with the "sharkskin" type finish may also help.

Simon

[jakehammer2000]

Is this worth doing?

[jakehammer2000]

Is this one available as a transparent overlay? I am only finding the side view

Originally Posted by gumby79

Aerodynamic Streamlining Template
Attachment 21045
Ill have to track down the quotes. I think it may have ben in Aerodynamic Streamlining Template: Part-C
You are more interested in the top view. . The 0 point would be your elbows.

[gumby79]

Would this help?

[California98Civic]

Btw, that vid of you on the track was impressive. good luck.