This technique has been done on older, and even some not so old, certified
aricraft. The biggest challenge you'll have is in not damaging the plexiglas.
A
dull hole saw with very conservative pressure in the drill press would likely
work well. Certainly a reasonable and lightweight approach to cockpit
ventilation.
Aircraft Spruce and Wicks, and possibly Airtex may carry the rotating vent.
Cleve
A198 Mono XS Jabiru 3300
Detroit, MI
On Tue, 13 August 2002, "Kevin Taylor" wrote:
>
> Folks,
>
> I was looking again at my mates new Ikarus and at the cooling window he has.
> Basically they have cut out a 80mm hole, into which is inserted a
> cylindrical receptor which pushes out in to the airflow but held in place by
> a lip (So it wont push out). This then turns through 360 deg as required,
> which allows you to target how much of the scoop is in the airflow and thus
> scoops air through as required. My description is probably confusing but the
> device is very primitive and looks like it will work well although we don't
> know as the plane hasn't flown yet due to the paperwork bouncing backwards
> and forwards!!
>
> My question is this. Is there anything to stop me cutting the 80mm hole out
> of my Perspex canopy and inserting one of these window devices which is made
> of Perspex?
>
> I suspect the standard answer will be it will degrade the structural
> strength of the Perspex....etc.
>
> Anyone any ideas?
>
> Regards
>
>
> Kevin
>
>
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