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Fuel Senders, Gauges, Accuracy

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n8vim(at)arrl.net
Guest

Posted: Thu Jan 12, 2006 3:09 pm Post subject: Fuel Senders, Gauges, Accuracy

Hi all!



    Hopefully someone can give me some answers to an issue an RV-8 

builder informed me of. Specifically, his tank holds 22 Gallons, he uses 

15 gallons before the fuel gauge reads half. Since I don't have a gauge, 

and I am about to put the rear baffle on, I'd like to get half to be as 

close to half as possible!



Questions:

    1. Anyone already built; With 15 Gallons in your tank:

          A) What is the resistance of your sending unit?

          B) What does your gauge read (half, 3/4, 1/4?)?



    2. Anyone that has a gauge and the sending unit:

          A) What resistance makes the gauge read:

                a) 1/4

                b) 1/2

                c) 3/4

                d) Full



Many thanks for replies!

-Jim 40384

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sfdarton(at)yahoo.com
Guest

Posted: Thu Jan 12, 2006 3:54 pm Post subject: Fuel Senders, Gauges, Accuracy

To any completed RV-10 owners



I would like to build a fuel tab Ala Cherokee. can

someone give me a dimension for 10 gallons down (20 in

the tank).



Thanks

Steve 40212 Tanks



--- James Hein <n8vim(at)arrl.net> wrote:



 	  Quote: 	
		   

 <n8vim(at)arrl.net>

 

 Hi all!

 

     Hopefully someone can give me some answers to an

 issue an RV-8 

 builder informed me of. Specifically, his tank holds

 22 Gallons, he uses 

 15 gallons before the fuel gauge reads half. Since I

 don't have a gauge, 

 and I am about to put the rear baffle on, I'd like

 to get half to be as 

 close to half as possible!

 

 Questions:

     1. Anyone already built; With 15 Gallons in your

 tank:

           A) What is the resistance of your sending

 unit?

           B) What does your gauge read (half, 3/4,

 1/4?)?

 

     2. Anyone that has a gauge and the sending unit:

           A) What resistance makes the gauge read:

                 a) 1/4

                 b) 1/2

                 c) 3/4

                 d) Full

 

 Many thanks for replies!

 -Jim 40384

 

 

 



 browse

 Subscriptions page,

 FAQ,



 Admin.



 

 

 

  

  

  

 

 

 

 


	




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jesse(at)itecusa.org
Guest

Posted: Wed Jan 18, 2006 1:46 pm Post subject: Fuel Senders, Gauges, Accuracy

Jim,



We are using the floats, but are using a Dynon EMS to monitor the tanks

through the floats.  When you calibrate the Dynon, they have you put in a

gallon or two at a time and it gets the new reading from the float.  Having

done it this way, and having a fuel flow meter to check, and a history of

filling the tanks and using exactly what the fuel flow said we had burned,

the floats are almost always accurate within a gallon or two.  Couldn't help

any on actual gauges, though.  I wouldn't even consider putting a non-EMS

(read - individual gauges for monitoring engine and fuel) in a plane like

this anyway.



Jesse Saint

I-TEC, Inc.

jesse(at)itecusa.org

www.itecusa.org

Fax: 815-377-3694

 

I am in Ecuador until May, 2006.  If you have questions regarding I-TEC,

please call the office at 352-465-4545.  If you would like to talk to me,

please call me at 352-505-1899.  This number won't always be on, but it has

voicemail that will get to me in Ecuador.



--

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Randy(at)abros.com
Guest

Posted: Wed Jan 18, 2006 4:14 pm Post subject: Fuel Senders, Gauges, Accuracy

I have the same experience with the ACS2500.  The fuel in the tanks is

right on compared to the gauges.  Randy



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