The small rear facing hole was specified by Burt Rutan, to create a
small flow of air through the vent allowing water that blew in to blow
out again. This was in order to reduce the risk of the vent icing up.
(Burt designed the EZs among many others and was the inspiration for the
Europa.)
Each of the four present at the barside chats in Yorkshire while the
Europa was forming in Ivan's head built an EZ. We wanted an EZ that
would operate from small grass fields.
Graham
Duncan & Ami McFadyean wrote:
> <ami@mcfadyean.freeserve.co.uk>
>
> <<... I have not heard of this being a problem>>
>
> Inflight rainwater ingress was a problem for Jon Tye (I think it was)
> and resulted in the mod requiring a small rear-facing hole to be made
> in the back of the exposed part of the vent.
>
|