Best Body Design for Areodynamics ? (air off rider)

[Zimmerman]

In another thread someone mentioned 'pointy scooters having horrible Areodynamics.'
I think they ment the rider gets more wind buffeting.
http://www.kymcoforum.com/index.php?topic=8069.0

When riding my Yager I get more wind (on my legs) than I woud have expected.
The Yager does have a pointy front end shape.

In contrast, I read a People 300 review some where.
The reviewer commented how the stock scoot seemed to keep the wind off the rider.
I would consider that scoot to be 'not pointy.'

What have your experiences been ?

Does one body style typically have better aerodynamics than the other?

[Vivo]

Body style is not the first consideration... it's body design that really affect aerodynamics... Design then testing in a wind tunnel for drag coefficient...  Commercial scooters are not tested in wind tunnels and I doubt if we can really tell which scooter has a good aerodynamic body.  Aerodynamics can only be computed scientifically and cannot be known by assumptions or gut feel. If somebody can post the drag coefficient of several scooters, then we can compare.

[Zimmerman]

True - Areodynamics, decreasing wind resistance to improve efficiency and maybe speed.

I looking more for designs that keep wind off the rider.

KZ

[Vivo]

Full fairing and a good windshield will keep wind off the rider. A lot of helmets were designed using the wind tunnel, thus, a good aerodynamic helmet will help a lot.  Wind deflectors will also help...








For sure, this will do   

[ts1]

If somebody can post the drag coefficient of several scooters, then we can compare.

Peugeot Satelis: cw=0.401 (claimed to be the most aerodynamic scooter, Source: old Peugeot flyer). Of course Peugeot is a big automobile manufacturer and has own wind tunnels.
Probably Honda, BMW etc. use their wind tunnels for their expensive bikes too, but I haven't read any drag coefficient from them.

BTW: Peraves claims a cw of 0.17 - 0.19 for their various motorcycles. http://peraves.wordpress.com/
As you might already have guessed, Peraves is an offspring from aviation industry.

[Vivo]

Thank ts1..., .40 is a good figure considering that most sport bikes have a higher cd or cw of .50 - .60

Cars can have a cd of .29 which cannot be achieved by a commercial motorbike.

[MotoRandy123]

 Well here's a picture of the Peugeot Satelis it seems to have the fairing lowers built in.
It is a very smooth design but not much different from other scoots. It wouldn't take much
to improve others I think.

 I find I let my knees hang out in the wind then when I feel cold I tuck them in and there's
a lot less wind on them...
 

[MotoRandy123]

Smoothness is the major thing for low CD. The air stays attached to a smooth surface.
They taper the rear seat area to guide the air back together too. The windshield and
fairing are the size of the rider to block he's poor shape from creating drag. Notice the
bottom is flat and smooth all the way back.