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Subject: RE: [FlyRotary] Low fuel sensors (was: Oil level sensor)
Date: Thu, 3 Nov 2005 07:42:43 -0600
Message-ID: <87DBA06C9A5CB84B80439BA09D86E69E02E3AF7E@MAIL01.austin.utexas.edu>
Thread-Topic: [FlyRotary] Low fuel sensors (was: Oil level sensor)
Thread-Index: AcXgPLl28un6MjifSZOXRCGh1QepzgAPrg9g
From: "Mark R Steitle" <mark.steitle@austin.utexas.edu>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>

Bill,

I couldn't agree with you more.  I added mine after the wings were
already closed.  Not too difficult to do with fiberglass.  I set the
wing so the dihedral was correct, added a clear hose to the fuel supply
line and filled the wing with 7 gallons of water.  I made a mark at the
water level and installed the sensor fitting at that mark.  I figure
there is 1 gallon unusable fuel, so 6 gallons useable should be about
30+ minutes cruise on my 20B.  Oh yes, then I drained the water and
dried out the tank. I put two red LEDs on the panel, one for each tank.


Mark S.

-----Original Message-----
From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On
Behalf Of BillDube@killacycle.com
Sent: Wednesday, November 02, 2005 10:21 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Low fuel sensors (was: Oil level sensor)


I am building the tanks for my RV-7 and I'm also planning to install one
of=20
these in each tank.

Attached is a drawing of a mounting flange I designed.

Perhaps I will modify a stock drain flange instead of making my own
flange=20
from scratch. I need to check with Vans on the price of two extra drain=20
flanges.

   When you consider that the second leading cause of GA fatal accidents
is=20
fuel exhaustion, an independent low level sensor and indicator is a
prudent=20
addition to your airplane.


Mark R Steitle wrote:

>Ernest,
>One last possible solution then I'll shut up.  Have you considered
using
>one of the GEM ELS-1100HT (http://www.gems-sensors.co.uk/) sensors
>designed for monitoring liquid levels.  They claim these will work in
>oil.  Suggested uses listed are monitoring radiator levels, machine
tool
>oil levels and water reservoir level in food warmers.  The HT version
is
>good for 100C.  I'm using one of these in each wing tank as a 30 minute
>low fuel warning (independent from fuel gauges).  Pretty simple to hook
>up to an LED.
>
>Mark
>
>
>I'd be interested in hearing other opinions.
>
>
>
>
>-----------------------------------------------------------------------
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>
>-----------------------------------------------------------------------
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>
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>Homepage:  http://www.flyrotary.com/
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I am building the tanks for my RV-7 and I'm also planning to install one
of=20
these in each tank.

Attached is a drawing of a mounting flange I designed.

Perhaps I will modify a stock drain flange instead of making my own
flange=20
from scratch. I need to check with Vans on the price of two extra drain=20
flanges.

    When you consider that the second leading cause of GA fatal
accidents=20
is fuel exhaustion, an independent low level sensor and indicator is a=20
prudent addition to your airplane.

Bill Dube'


Mark R Steitle wrote:

>Ernest,
>One last possible solution then I'll shut up.  Have you considered
using
>one of the GEM ELS-1100HT=20
>(<http://www.gems-sensors.co.uk/>http://www.gems-sensors.co.uk/)
sensors
>designed for monitoring liquid levels.  They claim these will work in
>oil.  Suggested uses listed are monitoring radiator levels, machine
tool
>oil levels and water reservoir level in food warmers.  The HT version
is
>good for 100C.  I'm using one of these in each wing tank as a 30 minute
>low fuel warning (independent from fuel gauges).  Pretty simple to hook
>up to an LED.
>
>Mark
>
>
>I'd be interested in hearing other opinions.
>
>
>
>
>Low fuel sensors (was Oil leve.jpg
>
>
>
>--
>Homepage:  <http://www.flyrotary.com/>http://www.flyrotary.com/
>Archive and=20
>UnSub:=20
><http://mail.lancaironline.net/lists/flyrotary/>http://mail.lancaironli
ne.net/lists/flyrotary/
>