Aerodynamics; Aeroacoustics - Schubert S2 SPORT Mode D'emploi

C. THE HELMET

6. AERODYNAMICS

All SCHUBERTH motorcycle and racing helmets are developed and optimised
in SCHUBERTH's own wind tunnel under precisely defined scientific
conditions. The S2 SPORT is specifically designed for a touring or sports-
touring riding posture and remains stable in the air current. Even when
travelling at high speeds, the S2 SPORT generates practically no upward lift.
Other characteristics of the S2 SPORT include improved air resistance and
excellent directional stability. In addition, the buffeting* often experienced at
high speed on an unfaired motorcycle is significantly reduced.
* Shaking of the helmet as the air flows around it.
Note:
Please note that the strong eddy currents that can occur as a result of
the fairing on faired motorcycles may have a significant effect on the
aerodynamic characteristics of a helmet.

7. AEROACOUSTICS

Various features developed in SCHUBERTH's wind tunnel make the helmet
agreeably quiet as far as aeroacoustics are concerned, while providing
optimised acoustic feedback when riding. This enhances concentration,
especially at high speeds.
Note:
Aeroacoustic values may vary according to the type of motorcycle,
fairing design, seat position and physical size of the rider.
Caution:
As a result of the aeroacoustic optimisation of the helmet (and the
lower wind noise inside the helmet that comes with it), your actual
speed can easily be underestimated. Please do not rely on your sense
of hearing to estimate your road speed – always check it using your
speedometer.
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Note:
With faired motorcycles, strong eddy currents occur at the edges of
the wind shadow. These may significantly reduce the aeroacoustic
performance of the helmet. The motorcycle fairing should be adjusted
so that the turbulence created does not strike the bottom surface of
the helmet.
aeroacousitcally non-critical area
TURBULATORS
The patented turbulators on the top of the face shield
also optimise the aeroacoustic properties when riding
and prevent acoustic disturbances in the form of
whistling sounds that can be created by smooth and
straight edges.
EN
aeroacoustically critical area
aeroacousitcally non-critical area
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