Re: Keeping cool in the Dog Days of summer

[Bruno Valeri <bvaleri@xxxxxxxxxxxx>]

> I have no idea if this would weaken the helmet. But to get airflow, you
> would need forward facing scoops.

Robert,

I have no idea how serious you are about this, nor how drilling would affect
integrity on an 8 yr old shell.
(But the manufacturers have done exactly that. Drilled the shell.)

If you need forward facing scoops, you can purchase the parts. For examople,
you can purchase the scoops for Arai helmets. Though they are expensive.


Another consideration:
One way is to force air in (ie with scoops) and have it exhaust through rear
scoops.

Another way is to provide exhaust venting (holes) on the low pressure side
of the helmet.

Generating heat and sweat causes positive pressure. This pressure could be
scavenged out of low pressure vents.

Determining where low pressure is would be the next step. For sure directly
behind the head would be low pressure.
This venting would provide evaporative cooling.

Just don't get carried away with this.   <G>


Bruno
Montreal, Canada
CBR 929
http://pages.videotron.com/mcrides

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