REFLECTOR: Duct ventillation

[Dennis Martin]

We're practically neighbors. If you ever want to do a X country to Utah,
you're welcome to our guest apartment. My FG is getting close to finish and
I'd love to see your ship.

Dennis

On Wed, Oct 21, 2009 at 12:36 PM, Jerry Teitsma <jerryteits at comcast.net>wrote:

> I have also experienced very hot temps in the ducts both on the side
> carrying the oil lines and on the other side.  I stopped or reduced this
> temporarily by stuffing the duct opening at the firewall.  I have reasoned
> that I am building up too much pressure under the cowling.   I have a
> Franklin engine in a standard size velocity and the exit area at the prop is
> quite congested.  I am attempting to solve the perceived pressure build-up
> by building a reverse scoop on the bottom of the cowling to pull air out of
> the engine compartment.  This should also aid in cylinder head cooling.  I
> have not yet flown with the modification so time will tell.
>
> Jerry Teitsma
> Velocity 173 FG
> Granby, CO
> N241JT
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-- 
All the best,
Dennis
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