Ron
Thanks for looking at my build pictures http://www.europaowners.org/WileE
I have not noticed a high force on the cowl flap. It does make a slight
difference in the nose down trim a cruse flight speed. I copied the build
that Bob Harrison shows in his pictures.
It is made of 1/16" alum. I used a standard boden cable that I bought from
AC. The 2 hinges are .75 alum. aircraft hinges 3 inches long. The flap when
closed leaves a 3 inch slot open at it's trailing edge. (It does not close
off the air exit completely) It is not directly connected to the boden
cable. It is spring returned to the up position.
Hope this helps. remember, "I am an armature aircraft builder :) "
Cliff Shaw
1041 Euclid ave.
Edmonds, WA 98020
425 776 5555
http://www.europaowners.org/WileE
----- Original Message -----
From: "Ronald J. Parigoris" <rparigor@suffolk.lib.ny.us>
Subject: Europa-List: Cowl flaps?
> <rparigor@suffolk.lib.ny.us>
>
> Hello Cliff
>
> Hope all is doing well by you.
>
> Our motor and prop are on order, looking forward to tackling the pointy
> end!
>
> Thinking about how to incorporate a Cowl Flap, and like your set up. I
> don't
> have any feel for what sort of loads such a thing has.
>
> Can you give me some sort of heads up as to how hard it is to deploy, are
> your
> hinges robust enough, is there a speed max, and max deploy if closed
> speed? If
> you were to do it again, any comments?
>
> I have glider wings, and plan on installing a oil thermostat as well.
>
> Thx.
> Sincerely
> Ron Parigoris
>
>
>
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