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1. 05:57 AM - Re: fun and games with a manometer (Lynn Matteson)
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| Subject: | Re: fun and games with a manometer |
Hi Bob-
You're probably right about the 60 lip, and I can't find the source
of where I got that notion. I just checked the Bingelis books, and it
wasn't there. Plus, a 60 lip looks out of place and draggy. I did
the one flight with the "lip" and removed it, proving nothing.
Yesterday I built a brace that screws to the firewall, and projects
down to contact the cowl, and this will keep the cowl from being
blown upwards, if indeed it ever was (without the added lip, that
is). This provides two things....it keeps the cowl a bit further away
from the pipes, and provides a fixed outlet area, not a variable one.
Lynn Matteson
Kitfox IV Speedster, taildragger
Jabiru 2200, #2062
Prince prop (64 x 30, P-tip)
Electroair direct-fire ignition system
Rotec TBI-40 injection (sleeved to 36mm)
Status: flying with "Ramcharger" intake manifold...1110 hrs (since
3-27-2006)
On May 29, 2011, at 3:08 PM, BobsV35B@aol.com wrote:
> Good Afternoon Lynn,
>
> You mentioned that you used a sixty degree lip. Seems to me I once
> read that anything beyond thirty degrees of "lip" actually
> decreases the airflow. It causes too much turbulence in the area.
> No knowledge from me. just a memory from a long time ago.
>
> Happy Skies,
>
> Old Bob
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