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Subject: Re: [LML] Re: Recent flight
From: Keith Smith <keith.smith@gmail.com>
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The fuel transfer lines are visible in my LNC2. It's great to know when the
wing tanks are running dry, both to know when to stop using the pumps and
also to correlate the fuel remaining on the totalizer.

Keith Smith
N360JH


On Mon, Apr 29, 2013 at 2:17 PM, Craig Berland <cberland@systems3.net>wrote=
:

> Angier,
> I have an A36 Bonanza with Osborne Tip Tanks.  They utilize a transfer
> pump and a switch mechanism that senses pressure (I think). The switch
> turns itself off when the tip tank runs dry.  To start the transfer you
> must turn the momentary switch to "on" and hold it there for about 5
> seconds.  Once pressure builds, then the pump continues to run until the
> tank is dry.  May be something to check out.
> Craig Berland
> IV-P N7VG
>
> Yesterday's flight from KBVY to KEFK on the Canadian border and back
> provided a good opportunity to experience lean of peak performance for th=
e
> first time. About 80=BA lean of peak is where roughness became noticeable=
.
> With fuel flows jumping around due to ongoing electrical issue(probable),
> it's not at all certain what the correct flow rate was but it was bouncin=
g
> around in the 6-9gal range at 8500ft. Several weeks ago I installed an LE=
D
> indicator in the panel to let me know when the auto fuel system relay was
> energized since I wanted to be absolutely sure fuel wasn't being pumped
> overboard at the high level, it wasn't. This flight was also the first ti=
me
> I ran the wing tanks dry. Since I could not hear the transfer pumps in
> normal operation, I was hoping to hear them when running dry but I could
> not. I'm thinking that an optical sensor in each fuel transfer line might
> be useful to know for sure the tanks are empty so the auto transfer syste=
m
> can be deactivated so as to not have the pumps running dry.
>
> Angier Ames
> N4ZQ
> 25hrs and beyond Phase I
>
>
>
>
> --
> For archives and unsub
> http://mail.lancaironline.net:81/lists/lml/List.html
>

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<div dir=3D"ltr"><div>The fuel transfer lines are visible in my LNC2. It&#3=
9;s great to know when the wing tanks are running dry, both to know when to=
 stop using the pumps and also to correlate the fuel remaining on the total=
izer.<br>
<br>Keith Smith<br></div>N360JH<br></div><div class=3D"gmail_extra"><br><br=
><div class=3D"gmail_quote">On Mon, Apr 29, 2013 at 2:17 PM, Craig Berland =
<span dir=3D"ltr">&lt;<a href=3D"mailto:cberland@systems3.net" target=3D"_b=
lank">cberland@systems3.net</a>&gt;</span> wrote:<br>
<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=
x #ccc solid;padding-left:1ex">Angier,<br>
I have an A36 Bonanza with Osborne Tip Tanks. =A0They utilize a transfer pu=
mp and a switch mechanism that senses pressure (I think). The switch turns =
itself off when the tip tank runs dry. =A0To start the transfer you must tu=
rn the momentary switch to &quot;on&quot; and hold it there for about 5 sec=
onds. =A0Once pressure builds, then the pump continues to run until the tan=
k is dry. =A0May be something to check out.<br>

<span class=3D"HOEnZb"><font color=3D"#888888">Craig Berland<br>
IV-P N7VG<br>
</font></span><div class=3D"HOEnZb"><div class=3D"h5"><br>
Yesterday&#39;s flight from KBVY to KEFK on the Canadian border and back pr=
ovided a good opportunity to experience lean of peak performance for the fi=
rst time. About 80=BA lean of peak is where roughness became noticeable. Wi=
th fuel flows jumping around due to ongoing electrical issue(probable), it&=
#39;s not at all certain what the correct flow rate was but it was bouncing=
 around in the 6-9gal range at 8500ft. Several weeks ago I installed an LED=
 indicator in the panel to let me know when the auto fuel system relay was =
energized since I wanted to be absolutely sure fuel wasn&#39;t being pumped=
 overboard at the high level, it wasn&#39;t. This flight was also the first=
 time I ran the wing tanks dry. Since I could not hear the transfer pumps i=
n normal operation, I was hoping to hear them when running dry but I could =
not. I&#39;m thinking that an optical sensor in each fuel transfer line mig=
ht be useful to know for sure the tanks are empty so the auto transfer syst=
em can be deactivated so as to not have the pumps running dry.<br>

<br>
Angier Ames<br>
N4ZQ<br>
25hrs and beyond Phase I<br>
<br>
<br>
<br>
<br>
--<br>
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l/List.html" target=3D"_blank">http://mail.lancaironline.net:81/lists/lml/L=
ist.html</a><br>
</div></div></blockquote></div><br></div>

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