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Message-ID: <1b4b137c0812040701i241505bfl4508e3d6c3253b18@mail.gmail.com>
Date: Thu, 4 Dec 2008 10:01:23 -0500
From: "Tracy Crook" <tracy@rotaryaviation.com>
Sender: rwstracy@gmail.com
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Subject: Re: [FlyRotary] Re: Fuel system
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I might have known you would have done it well.  That setup makes it pretty
much bullet proof.
 But I still hate sump tanks :>)

Tracy

On Wed, Dec 3, 2008 at 7:54 PM, Al Gietzen <ALVentures@cox.net> wrote:

>    Well; there is, but of course it is dependant on air frame design. My
> Velocity has gravity feed from both mains to a 3 gallon sump, gravity fee=
d
> from sump to the EFI pump; regulator return to the sump.  Now that's simp=
le.
>
> Al G
>
>  It obviously works for you but I still have a hard time thinking about
> how the sump tank vents properly.   Maybe it doesn't need one?  Or do you
> vent it up to the mains.  But then there's that complexity again  :>)
>
> Tracy   (just trying to wrap my head around this system)
>
>
>
> Well; OK. I didn't mention the vents =96 but that's simple as well.  A ve=
nt
> line from the top of each main comes into the cabin at the firewall (back
> near the firewall the side of the cabin is the inboard wall of the main
> tanks); and the vent from the top of the sump (which is at the firewall)
> comes up to where they manifold together near the top of the firewall (ab=
ove
> all fuel levels).  From there a single line comes off the top of the
> manifold, makes a U-turn and exits out the bottom.
>
>
>
> Al G
>
>
>
> P.S. Tracy; did you get my e-mail re the TC alarming; or is it just as
> much a mystery to you?
>

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I might have known you would have done it well.&nbsp; That setup makes it p=
retty much bullet proof. <br>&nbsp;But I still hate sump tanks :&gt;)<br><b=
r>Tracy <br><br><div class=3D"gmail_quote">On Wed, Dec 3, 2008 at 7:54 PM, =
Al Gietzen <span dir=3D"ltr">&lt;<a href=3D"mailto:ALVentures@cox.net">ALVe=
ntures@cox.net</a>&gt;</span> wrote:<br>
<blockquote class=3D"gmail_quote" style=3D"border-left: 1px solid rgb(204, =
204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">











<div link=3D"blue" vlink=3D"purple" lang=3D"EN-US">

<div>

<div>

<blockquote style=3D"border-style: none none none solid; border-color: -moz=
-use-text-color -moz-use-text-color -moz-use-text-color rgb(204, 204, 204);=
 border-width: medium medium medium 1pt; padding: 0in 0in 0in 6pt; margin-l=
eft: 4.8pt; margin-right: 0in;">


<div link=3D"blue" vlink=3D"blue">

<div>

<p style=3D"margin-left: 0.5in;"><font size=3D"3" color=3D"blue" face=3D"Ti=
mes New Roman"><span style=3D"font-size: 12pt; color: blue;">Well; there is=
, but of course it is
dependant on air frame design. My </span></font><font color=3D"blue"><span =
style=3D"color: blue;">Velocity</span></font><font color=3D"blue"><span sty=
le=3D"color: blue;"> has gravity feed from both mains to a 3 gallon sump,
gravity feed from sump to the EFI pump; regulator return to the sump.&nbsp;=
 Now
that&#39;s simple.</span></font></p>

<p style=3D"margin-left: 0.5in;"><font size=3D"2" color=3D"blue" face=3D"Ve=
rdana"><span style=3D"font-size: 11pt; font-family: Verdana; color: blue;">=
Al G</span></font></p>

</div>

</div>

</blockquote>

</div>

<p style=3D"margin-left: 0.5in;"><font size=3D"3" face=3D"Times New Roman">=
<span style=3D"font-size: 12pt;">It obviously works for you but I still hav=
e a hard
time thinking about how the sump tank vents properly.&nbsp;&nbsp; Maybe it
doesn&#39;t need one?&nbsp; Or do you vent it up to the mains.&nbsp; But th=
en
there&#39;s that complexity again&nbsp; :&gt;)&nbsp; <br>
<br>
</span></font>Tracy&nbsp;&nbsp; (just trying to wrap my head around this
system)</p>

<p><font size=3D"2" color=3D"blue" face=3D"Verdana"><span style=3D"font-siz=
e: 11pt; font-family: Verdana; color: blue;">&nbsp;</span></font></p>

<p><font size=3D"2" color=3D"blue" face=3D"Verdana"><span style=3D"font-siz=
e: 11pt; font-family: Verdana; color: blue;">Well; OK. I didn't mention the
vents =96 but that's simple as well.&nbsp; A vent line from the top
of each main comes into the cabin at the firewall (back near the firewall t=
he
side of the cabin is the inboard wall of the main tanks); and the vent from=
 the
top of the sump (which is at the firewall) comes up to where they manifold =
together
near the top of the firewall (above all fuel levels).&nbsp; From there a si=
ngle
line comes off the top of the manifold, makes a U-turn and exits out the bo=
ttom.</span></font></p>

<p><font size=3D"2" color=3D"blue" face=3D"Verdana"><span style=3D"font-siz=
e: 11pt; font-family: Verdana; color: blue;">&nbsp;</span></font></p>

<p><font size=3D"2" color=3D"blue" face=3D"Verdana"><span style=3D"font-siz=
e: 11pt; font-family: Verdana; color: blue;">Al G</span></font></p>

<p><font size=3D"2" color=3D"blue" face=3D"Verdana"><span style=3D"font-siz=
e: 11pt; font-family: Verdana; color: blue;">&nbsp;</span></font></p>

<p><font size=3D"2" color=3D"blue" face=3D"Verdana"><span style=3D"font-siz=
e: 11pt; font-family: Verdana; color: blue;">P.S. </span></font><font size=
=3D"2" color=3D"blue" face=3D"Verdana"><span style=3D"font-size: 11pt; font=
-family: Verdana; color: blue;">Tracy</span></font><font size=3D"2" color=
=3D"blue" face=3D"Verdana"><span style=3D"font-size: 11pt; font-family: Ver=
dana; color: blue;">; did you get my e-mail
re the TC alarming; or is it just as much a mystery to you? &nbsp;</span></=
font></p>

</div>

</div>


</blockquote></div><br>

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