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From: John Barrett <2thman1@gmail.com>
Subject: Re: [LML] engine shut down due to uncoordinated flight
X-Original-Date: Wed, 30 Oct 2013 10:29:00 -0700
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Think about the fuel slosh door in the tank and what imbalanced flight could=
 do.  Is it possible opening this door could let fuel out of the inboard tan=
k and decrease amount available to the pickup?

John

Sent from my iPad


> On Oct 30, 2013, at 7:45 AM, <bronnenmeier@GROBSYSTEMS.COM> wrote:
>=20
> Dear subscribers,
> =20
> I noticed a phenomena on my 4P that I thought might be worth sharing to se=
e if it is unique or may be others experienced something similar:
> =20
> When my ball is significantly out of center over a longer period of time (=
>30 sec), my fuel selector is on left, and I have less than 15 gals in my le=
ft tank my engine will quit due to fuel starvation.
> =20
> It happens mainly when I am practicing approaches: on the missed go around=
, when I am busy applying power, getting gears and flaps up, selecting my ne=
xt way point in the GPS, changing my approach plates=E2=80=A6 if I am on the=
 left tank with low fuel and I forget to retrim the rudder for the changed p=
ower setting my engine will shut down due to fuel starvation. My fuel indica=
tor will then show zero for the left tank. Switching the tanks and applying h=
igh boost brings it back to life within seconds. After 30 seconds or so I ca=
n see the original amount of fuel again in the left tank. It is not a big de=
al anymore because I know how to fix it but it certainly caught my full atte=
ntion the first time.
> =20
> In climb with full fuel I can also notice that I am loosing fuel out of th=
e left vent on the wing tip if I don=E2=80=99t keep my ball in the middle.
> =20
> In straight and level flight I can run this tank dry with the exact amount=
 of unusable fuel to which I calibrated my fuel indicator on the ground.
> =20
> The only explanation that I have for this phenomena is that this uncoordin=
ated flight situation must create some kind of vacuum on my wing tip around t=
he vent port that sucks the fuel out towards the wing tip away from the fuse=
lage. I have the regular wing tips and not the winglets.
> =20
> Any input or advice is appreciated.
> =20
> Ralf
> =20

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<html><head><meta http-equiv=3D"content-type" content=3D"text/html; charset=3D=
utf-8"></head><body dir=3D"auto"><div>Think about the fuel slosh door in the=
 tank and what imbalanced flight could do. &nbsp;Is it possible opening this=
 door could let fuel out of the inboard tank and decrease amount available t=
o the pickup?</div><div><br></div><div>John<br><br>Sent from my iPad<div><br=
></div></div><div><br>On Oct 30, 2013, at 7:45 AM, &lt;<a href=3D"mailto:bro=
nnenmeier@GROBSYSTEMS.COM">bronnenmeier@GROBSYSTEMS.COM</a>&gt; wrote:<br><b=
r></div><blockquote type=3D"cite"><div><meta http-equiv=3D"Content-Type" con=
tent=3D"text/html; charset=3Dus-ascii"><meta name=3D"Generator" content=3D"M=
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<o:idmap v:ext=3D"edit" data=3D"1" />
</o:shapelayout></xml><![endif]--><div class=3D"WordSection1"><p class=3D"Ms=
oNormal">Dear subscribers,<o:p></o:p></p><p class=3D"MsoNormal"><o:p>&nbsp;<=
/o:p></p><p class=3D"MsoNormal">I noticed a phenomena on my 4P that I though=
t might be worth sharing to see if it is unique or may be others experienced=
 something similar:<o:p></o:p></p><p class=3D"MsoNormal"><o:p>&nbsp;</o:p></=
p><p class=3D"MsoNormal">When my ball is significantly out of center over a l=
onger period of time (&gt;30 sec), my fuel selector is on left, and I have l=
ess than 15 gals in my left tank my engine will quit due to fuel starvation.=
 <o:p></o:p></p><p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p><p class=3D"MsoN=
ormal">It happens mainly when I am practicing approaches: on the missed go a=
round, when I am busy applying power, getting gears and flaps up, selecting m=
y next way point in the GPS, changing my approach plates=E2=80=A6 if I am on=
 the left tank with low fuel and I forget to retrim the rudder for the chang=
ed power setting my engine will shut down due to fuel starvation. My fuel in=
dicator will then show zero for the left tank. Switching the tanks and apply=
ing high boost brings it back to life within seconds. After 30 seconds or so=
 I can see the original amount of fuel again in the left tank. It is not a b=
ig deal anymore because I know how to fix it but it certainly caught my full=
 attention the first time.<o:p></o:p></p><p class=3D"MsoNormal"><o:p>&nbsp;<=
/o:p></p><p class=3D"MsoNormal">In climb with full fuel I can also notice th=
at I am loosing fuel out of the left vent on the wing tip if I don=E2=80=99t=
 keep my ball in the middle.<o:p></o:p></p><p class=3D"MsoNormal"><o:p>&nbsp=
;</o:p></p><p class=3D"MsoNormal">In straight and level flight I can run thi=
s tank dry with the exact amount of unusable fuel to which I calibrated my f=
uel indicator on the ground.<o:p></o:p></p><p class=3D"MsoNormal"><o:p>&nbsp=
;</o:p></p><p class=3D"MsoNormal">The only explanation that I have for this p=
henomena is that this uncoordinated flight situation must create some kind o=
f vacuum on my wing tip around the vent port that sucks the fuel out towards=
 the wing tip away from the fuselage. I have the regular wing tips and not t=
he winglets.<o:p></o:p></p><p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p><p cl=
ass=3D"MsoNormal">Any input or advice is appreciated.<o:p></o:p></p><p class=
=3D"MsoNormal"><o:p>&nbsp;</o:p></p><p class=3D"MsoNormal">Ralf<span style=3D=
"font-family:&quot;Arial&quot;,&quot;sans-serif&quot;"><o:p></o:p></span></p=
><p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p></div></div></blockquote></body=
></html>=

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