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Fuel Level Sender - Bob Reed

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fasilpereira

Joined: 17 Jul 2011
Posts: 86
Location: Brazil

Posted: Thu May 29, 2014 5:58 am Post subject: Fuel Level Sender - Bob Reed

Bob,



I noticed that you've cut the capacitive fuel level sender in order to install it on the wing due to cracks on the sender tubing after bending.



My sender was installed on the inboard wing rib, but on the upper part of the rib. Ted installed it bent up on the inboard part of the wing and pointing down toward the wing tip. This setup will not provide good measurements and I'm thinking on changing that.

To correct this issue I'm thinking on cutting the sender as you did, since there is not enough bendable lengh to bend the sensor down so that it touches the bottom of the wing skin.



Did you tested your setup? Did it worked properly? What is the brand and the model of your sender?



P.S.: I tried to see the pictures of your wing leak test but the link seem to be broken

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_________________
Fabricio Pereira
Engineer / Pilot

sstearns2(at)yahoo.com
Guest

Posted: Thu May 29, 2014 8:06 am Post subject: Fuel Level Sender - Bob Reed

I put the fuel senders in from the wingtip on both my TR-1 and the TR-4 project.  You can custom order senders up to around 10 feet and it is not much extra.  I put them in at an angle looking from the wing leading edge so they enter near the top of the wing root rib and the tip of the sender is just above the lower wing skin at or near the wing root rib.  No need to bend the tube.  The senders work great on my TR-1, very linear, and the senders are removable out of the wingtip.  I used the newer princeton senders that just use a pipe theard fitting and a separate box for the electronics.  I highly recommend it, much easier install.  Also, the newer "glass" avionics needs the newer 0-5V output.

Cheers,

Scott

      On Thursday, May 29, 2014 7:04 AM, fasilpereira <fasilpereira(at)hotmail.com> wrote:

  

  --> KIS-List message posted by: "fasilpereira" <fasilpereira(at)hotmail.com (fasilpereira(at)hotmail.com)>



Bob,



I noticed that you've cut the capacitive fuel level sender in order to install it on the wing due to cracks on the sender tubing after bending.



My sender was installed on the inboard wing rib, but on the upper part of the rib. Ted installed it bent up on the inboard part of the wing and pointing down toward the wing tip. This setup will not provide good measurements and I'm thinking on changing that.

To correct this issue I'm thinking on cutting the sender as you did, since there is not enough bendable lengh to bend the sensor down so that it touches the bottom of the wing skin.



Did you tested your setup? Did it  worked properly? What is the brand and the model of your sender?



P.S.: I tried to see the pictures of your wing leak test but the link seem to be broken



--------

Fabricio Pereira

Engineer / Pilot





Read this topic online here:



http://forums.matronics.com/viewtopic.php?p=423962#423962



http://forums.matronics.cosp;                     -nics.com/contribution" target="_blank">http://www.matronics.com/contribut===============

  

  

  

 

 [quote][b]

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fasilpereira

Joined: 17 Jul 2011
Posts: 86
Location: Brazil

Posted: Thu May 29, 2014 8:35 am Post subject: Re: Fuel Level Sender - Bob Reed

Thanks Scott!



That's probably the best way to go, but my wings are already closed and with the aluminum insert installed on the inboard rib. 

I want to keep the rework to the minimum level in order to get it flying as soon as possible....

Best,



Fabricio

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_________________
Fabricio Pereira
Engineer / Pilot

gbrighton(at)skymesh.com.
Guest

Posted: Sat May 31, 2014 4:19 am Post subject: Fuel Level Sender - Bob Reed

G'Day Scott Ana All,

I have had a dead fuel gauge on one side since I purchased my TR1 .... 

Traced the fault the the Head or the bent in Tank Tube ... It's the 

early low vlt capacitance model .... With the bend the unit can't be

replaced normally .. So is a headache I haven't solved as yet .. The 

other side works fine ..,

Scott,

         Interested in ur Carbon Fibre project ... I have a Quickie TRI 

gear ... That I'm looking at using to rebuild into a light weight 

version ... , wondering if u have added Lightening Protection or not .. 

If so how ..., and are u doing Hand Lay ups .. Or using prepreg material 

or or ..?

Cheers

Graham

n 30.05.2014 02:06, Scott Stearns wrote:

 	  Quote: 	
		   I put the fuel senders in from the wingtip on both my TR-1 and the

 TR-4 project. You can custom order senders up to around 10 feet and 

 it

 is not much extra. I put them in at an angle looking from the wing

 leading edge so they enter near the top of the wing root rib and the

 tip of the sender is just above the lower wing skin at or near the

 wing root rib. No need to bend the tube. The senders work great on my

 TR-1, very linear, and the senders are removable out of the wingtip. 

 I

 used the newer princeton senders that just use a pipe theard fitting

 and a separate box for the electronics. I highly recommend it, much

 easier install. Also, the newer "glass" avionics needs the newer 0-5V

 output.



 Cheers,

 Scott



  On Thursday, May 29, 2014 7:04 AM, fasilpereira

 <fasilpereira(at)hotmail.com> wrote:



 

 <fasilpereira(at)hotmail.com [1]>



 Bob,



 I noticed that you've cut the capacitive fuel level sender in order 

 to

 install it on the wing due to cracks on the sender tubing after

 bending.



 My sender was installed on the inboard wing rib, but on the upper 

 part

 of the rib. Ted installed it bent up on the inboard part of the wing

 and pointing down toward the wing tip. This setup will not provide

 good measurements and I'm thinking on changing that.

 To correct this issue I'm thinking on cutting the sender as you did,

 since there is not enough bendable lengh to bend the sensor down so

 that it touches the bottom of the wing skin.



 Did you tested your setup? Did it worked properly? What is the brand

 and the model of your sender?



 P.S.: I tried to see the pictures of your wing leak test but the link

 seem to be broken



 --------

 Fabricio Pereira

 Engineer / Pilot



 Read this topic online here:



 http://forums.matronics.com/viewtopic.php?p=423962#423962 [2]



 http://forums.matronics.cosp; -nics.com/contribution"

 target="_blank">http://www.matronics.com/contribut===============





 Links:

 ------

 [1] mailto:fasilpereira(at)hotmail.com

 [2] http://forums.matronics.com/viewtopic.php?p=423962#423962

- The Matronics KIS-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

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sstearns2(at)yahoo.com
Guest

Posted: Sat May 31, 2014 5:04 pm Post subject: Fuel Level Sender - Bob Reed

Hi Graham,



The carbon parts in my TR-1 and in the TR-4 were all done with prepreg in Rich's shop years ago.   



I have never understood the embedded mesh lightning protection.  It seems like the mesh would just vaporize and cause a large delamination to me, but maybe there is more to it than I understand.   I think that advantage of being able to put all the antennas inside a fiberglass structure outweigh whatever benefit comes with conductive mesh.   For what it is worth, in 11,000 hours of flying all over the US in lots of crappy weather I have had one lightning strike.  



Cheers,

Scott



 	  Quote: 	
		   On May 31, 2014, at 6:18 AM, gbrighton(at)skymesh.com.au wrote:

 

 

 

 G'Day Scott Ana All,

 I have had a dead fuel gauge on one side since I purchased my TR1 .... Traced the fault the the Head or the bent in Tank Tube ... It's the early low vlt capacitance model .... With the bend the unit can't be

 replaced normally .. So is a headache I haven't solved as yet .. The other side works fine ..,

 Scott,

        Interested in ur Carbon Fibre project ... I have a Quickie TRI gear ... That I'm looking at using to rebuild into a light weight version ... , wondering if u have added Lightening Protection or not .. If so how ..., and are u doing Hand Lay ups .. Or using prepreg material or or ..?

 Cheers

 Graham

 

 

 n 30.05.2014 02:06, Scott Stearns wrote:

> I put the fuel senders in from the wingtip on both my TR-1 and the

> TR-4 project. You can custom order senders up to around 10 feet and it

> is not much extra. I put them in at an angle looking from the wing

> leading edge so they enter near the top of the wing root rib and the

> tip of the sender is just above the lower wing skin at or near the

> wing root rib. No need to bend the tube. The senders work great on my

> TR-1, very linear, and the senders are removable out of the wingtip. I

> used the newer princeton senders that just use a pipe theard fitting

> and a separate box for the electronics. I highly recommend it, much

> easier install. Also, the newer "glass" avionics needs the newer 0-5V

> output.

> 

> Cheers,

> Scott

> 

> On Thursday, May 29, 2014 7:04 AM, fasilpereira

> <fasilpereira(at)hotmail.com> wrote:

> 

> 

> <fasilpereira(at)hotmail.com [1]>

> 

> Bob,

> 

> I noticed that you've cut the capacitive fuel level sender in order to

> install it on the wing due to cracks on the sender tubing after

> bending.

> 

> My sender was installed on the inboard wing rib, but on the upper part

> of the rib. Ted installed it bent up on the inboard part of the wing

> and pointing down toward the wing tip. This setup will not provide

> good measurements and I'm thinking on changing that.

> To correct this issue I'm thinking on cutting the sender as you did,

> since there is not enough bendable lengh to bend the sensor down so

> that it touches the bottom of the wing skin.

> 

> Did you tested your setup? Did it worked properly? What is the brand

> and the model of your sender?

> 

> P.S.: I tried to see the pictures of your wing leak test but the link

> seem to be broken

> 

> --------

> Fabricio Pereira

> Engineer / Pilot

> 

> Read this topic online here:

> 

> http://forums.matronics.com/viewtopic.php?p=423962#423962 [2]

> 

> http://forums.matronics.cosp; -nics.com/contribution"

> target="_blank">http://www.matronics.com/contribut===============

> 

> 

> 

> 

> Links:

> ------

> [1] mailto:fasilpereira(at)hotmail.com

> [2] http://forums.matronics.com/viewtopic.php?p=423962#423962

- The Matronics KIS-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

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