Aerodynamics; Aeroacoustics - SCHUBERTH C3 pro Manual De Usuario

C. THE HELMET

6. AERODYNAMICS

All SCHUBERTH motorcycle and racing helmets are developed and optimi-
sed in SCHUBERTH's own wind tunnel under precisely defined scientific
conditions. The C3 PRO is specifically designed for a touring or sport-touring
riding posture and remains stable in the air current. Even when traveling at
high speeds, the C3 PRO generates practically no upward lift. Enhanced
characteristics of the C3 PRO are improved air resistance and optimised
directional stability. The buffeting* on unfaired motorcycles is also significant-
ly minimised.
* 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
notably quiet as far as aeroacoustics are concerned, while providing optimi-
sed hearing capability 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 reach 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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