Hi Gilles & Brian
Watching your email thread I would like to add my 2 pennies, I was aware
that there was a problem with exhaust gasses entering the cabin through the
flap slots on each side of the fuselage so I made a bulk head from the rear
of the baggage bay floor to the floor of the aircraft [in 2 pieces] I am
going to seal them air tight with foam rubber so that under the baggage bay
is air tight to the cabin.
I have had only one problem associated with engine smells from the start and
that is a smell of fuel when I switch on the electric fuel pump. Fuel
pressure remain the same with fuel pump no or off. No leaks found so far its
very strange.
Regards
Richard
G-CGZV Tri-gear 912ul 115hrs
-----Original Message-----
From: Brian Davies
Sent: Wednesday, May 13, 2015 10:46 AM
Subject: RE: Europa-List: Smell of petrol in the cocpit just after takeoff
Hi Gilles,
I think leather bellows is probably the way to go. I have been chasing
higher than normal CO levels on my aircraft, hence the research into
airflows from the engine compartment. I have been looking at bellows around
the pitch tube behind the baggage bay to close off the airflow through the
flap slots and forward through the tunnel. I am ,however, struggling to
understand why I should have a problem on my aircraft when others are not
reporting problems.
The trouble with measuring CO with a digital sensor is that once you know
the reading you feel you should do something about it, even if it is within
limits. I am getting 11 - 20 ppm in cruise and up to 35ppm on approach with
the flaps down, with a normal limit of 50ppm for GA aircraft but zero would
be better!
Regards
Brian
-----Original Message-----
From: owner-europa-list-server@matronics.com
[mailto:owner-europa-list-server@matronics.com] On Behalf Of GTH
Sent: 12 May 2015 23:31
Subject: Re: Europa-List: Smell of petrol in the cocpit just after takeoff
Brian,
Thank you for the information.
> I know it is good aero practice to have a gas tight FWL but on the
> Europa, with rudder cables passing through it, it is actually impossible
to achieve.
I would have thought that it could be easily addressed with leather bellows,
like on vintage aircraft.
> Also the external airflow from the engine area can attach to the lower
> fuselage and enter the flap slots.
This one beats me, but when there is a will there is a way...
Best regards,
Gilles
http://contrails.free.fr
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