MessageAll,
there has been talkings about the case =9Cis it possible to
operate with only one fuel transducer when there is a fuel return
line=9D.
It is. Look at the attachment =93 this set up does it well!
Cheers, Raimo Toivio
Europa XS Mono OH-XRT #417
Updated flight hours /landings: 267,4 /474
37500 Lempaala
FINLAND
p +358-3-3753 777
f +358-3-3753 100
toivio@fly.to
www.rwm.fi
From: Duncan & Ami
Sent: Sunday, April 29, 2012 1:14 PM
Subject: RE: Europa-List: Fuel Return Line
The LAA was averse to the idea of discharging the fuel return to the
bottom of the tank on the basis that, if fuel lines firewall-forward
were ruptured in an accident or engine fire, then there would be the
possibility of fuel siphoning from the tank via the fuel return line,
This makes sense, although mitigation of that possibility could be to
place the vent line restrictor behind the firewall. Or arrange for the
addition of a non-return valve at the same location.
Duncan McF.
-----Original Message-----
From: owner-europa-list-server@matronics.com
[mailto:owner-europa-list-server@matronics.com] On Behalf Of Raimo
Toivio
Sent: 26 April 2012 19:11
To: europa-list@matronics.com
Subject: Europa-List: Fuel Return Line
All,
We have a fuel selector valve in fuel line. We try to remember to
close it before a possible emergency landing. Some pilots close it
always when not flying and some people close it only during a long
storage time.
There is also a fuel return line. That is connected to the tank bottom
(starboard side /reserve side) if built as per a BM (issue 6, page 6-3).
I have two guestions:
1) would it be wise to have a 2nd fuel valve in a fuel return line
also to get an ability to close it or one-way-valve in the case of
emergency?
2) why this line is connected to the fuel outlet which locates in the
bottom of the tank? Why not to the upper corner of the (reserve side)
tank?
BTW: During this winter I changed all the rubber parts under the
cowling (oh boy there are really many of them!). I noticed the fuel
restrictor (FS02) was totally blocked. It was quite hard to open it. I
assume it has maybe been blocked since almost new because I had during
those days (2007) an issue with a fuel contamination and suffered a
scary engine stoppage because of a totally blocked filter during a
flight # 7. It was good to have a 2nd filter and way to use it by
selecting =9CRES=9D.
So, I have noticed no problems to use my engine with return line which
is off-line. There are also many Rotax aplications with no plans for
return lines in use. What is a main reason we should have a fuel return
line? To get more fresh cool fuel or what?
Cheers, Raimo
OH-XRT
Finland
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