Hi! All Europa Forum
Below is a message sequence I published thanking Terry Seaver for his
contribution of information. Seemingly it has been blocked by some
"Baracuda Spam Firewall Protection system of the Matronics Site .
Please give it access.
Regards
Bob Harrison G-PTAG
-----Original Message-----
From: R.C.Harrison [mailto:ptag.dev@tiscali.co.uk]
Sent: 16 November 2006 22:23
Subject: Was re:- Oil Cooler Thermostat ....now "fit for purpose Gills
slots in top cowl"
Hi! Terry
Thanks for the message below, it is invaluable at my stage of re-build
and I was suspicious of the facts having had no gills on my Jabiru
arrangement.
I will be making reference about your results should I need a mod.
application if you don't mind.
Regards and "thanks a million"!
Bob Harrison G-PTAG preparing for a 914 Rotax.c/w intercooler!
-----Original Message-----
From: owner-europa-list-server@matronics.com
[mailto:owner-europa-list-server@matronics.com] On Behalf Of Terry
Seaver (terrys)
Sent: 16 November 2006 21:30
Subject: RE: Europa-List: Oil cooler thermostat
<terrys@cisco.com>
Just a comment on the 'gills'. We spent a lot of time curing our temp
problems on a 912S powered XS, instrumenting and logging in flight
various temperatures under the cowl. Our experiences indicate to us
that the gills significantly hurt cooling in flight and doesn't help
much cooling the engine after shutdown.
In flight, the gills allow cooling air from the front eyeball inlets
to bypass most of the engine, exiting without helping cool anything
particularly hot. Blocking them off completely caused no significant
temperature rise in the top, rear, of the cowl, which remained within a
few degrees of ambient during all phases of flight.
As for cooling the engine after shutdown, only the coolant inspection
panel on top of the cowl seems to help much, the gills are too low to
get much convection action going.
We did end up closing off all but one of the gills, leaving that one
open just in case we missed something, although flight testing with ALL
of them closed off indicated no real reason for having it open.
Just my two cents worth,
Terry Seaver
A135/N135TD
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