Svein,
You say the area where you placed the outlet is a low pressure area. Are you
sure? Did you measure that pressure? I think when the profile is diminishing
the pressure raises. On that place I have an intake for ventilation and even
in hot days I can't open fully the inlet because the windstream can't be
endured for a long time.
Regards,
Karel Vranken. F-PKRL
----- Original Message -----
From: "Sidsel & Svein Johnsen" <sidsel.svein@oslo.online.no>
Sent: Wednesday, September 10, 2008 5:39 PM
Subject: Re: Europa-List: Cabin vent - air outlet?
> After consulting with EA2004 about any possible strength issues (none), I
> built an air outlet vent on top of the fuselage behind the doors - see
> attached photo. This is a low pressure area.
>
> Under the fore part of this vent is a 2 inch hole through the fuselage. I
> built a sliding valve under the hole to partially or fully close the
> opening. I have, however, during two years of flying never adjusted this
> valve from full open, whether in summer time or during the winter, so I
> consider it unnecessary to have it. Air flow through the cockpit is
> instead
> controlled only by the fresh air or heater inlets (either ones always open
> to some extent).
>
> Svein
> LN-SKJ
>
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