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  #11  
Old 02-09-2011, 12:00 PM
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Walt Walt is offline
 
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I installed the cap senders that Van's sells and have been 100% satisfied with system operation, very accurate from full to empty (run with EI instruments).

If you install them properly chances are slim to none that you will ever have a problem with them.
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  #12  
Old 02-09-2011, 01:23 PM
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CharlieWaffles CharlieWaffles is offline
 
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Quote:
Originally Posted by 9GT View Post
I put these in my -10 wings: http://www.aircraftspruce.com/catalo...fuelprobes.php I used the 5 point set for ease of calibration and they are compatible with Dynon Skyview with no other converter needed. They added a few hours additional work but well worth the time.
What size/length did you order?
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  #13  
Old 02-09-2011, 04:15 PM
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Quote:
Originally Posted by CharlieWaffles View Post
What size/length did you order?
IIRC I went with the 18". They are bent up to 1/8" of the tank top, then back down at about at about a 45* angle to 1/16" of the bottom. You drill a tiny hole at the very top of the bend after you are satisfied before permanent installation. You do the installation before the tank baffle install. Be REALLY careful bending as the bends need to be tight and you do not want to collapse the tubing at the bends. Use a good rolling tubing bender.
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  #14  
Old 02-09-2011, 04:23 PM
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CharlieWaffles CharlieWaffles is offline
 
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Quote:
Originally Posted by 9GT View Post
IIRC I went with the 18". They are bent up to 1/8" of the tank top, then back down at about at about a 45* angle to 1/16" of the bottom. You drill a tiny hole at the very top of the bend after you are satisfied before permanent installation. You do the installation before the tank baffle install. Be REALLY careful bending as the bends need to be tight and you do not want to collapse the tubing at the bends. Use a good rolling tubing bender.
Are the associated electronics accessible from a service point if there becomes an issue? complete replacement would be hard, but I wonder if the "advanced" version they sell would be better so the electronics are more available.

So for yours, aircraft spruce wants to know the bendable length (NB, 3, 5) and mounting (I'm assuming Flange).

http://www.aircraftspruce.com/catalo...fuelprobes.php
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  #15  
Old 02-09-2011, 06:37 PM
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N941WR N941WR is offline
 
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Quote:
Originally Posted by CharlieWaffles View Post
Are the associated electronics accessible from a service point if there becomes an issue?...
Yes, the Dynon units simply attach to the BNC connector outside the tank, down in the wingroot.
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  #16  
Old 02-09-2011, 07:39 PM
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Quote:
Originally Posted by CharlieWaffles View Post
Are the associated electronics accessible from a service point if there becomes an issue? complete replacement would be hard, but I wonder if the "advanced" version they sell would be better so the electronics are more available.

So for yours, aircraft spruce wants to know the bendable length (NB, 3, 5) and mounting (I'm assuming Flange).

http://www.aircraftspruce.com/catalo...fuelprobes.php
There are no electronics to access,,,,its all encased in a cast composite. You replace the unit in the very unlikely case one would fail. Not a big deal. No more so that replacing a typical float.
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RV-10: #41686 Under Construction
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RV-10: #40637 Completed/Sold 2016
Cozy MKIV:#656 Completed/Sold 2007
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  #17  
Old 02-10-2011, 07:10 PM
jc11378 jc11378 is offline
 
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Default Fuel Sendors

From the research i have done on this,i think the easiest and cheapest way to go is the Vans kits and make two new aluminum plates to fit the -10 ribs and go from there, the bnc connector idea is very simplistic no parts to go bad and very easy to install. There is no need to to a probe install from ACS. Vans sells a kit for the -9 that will work perfectly and no issues from what I have seen.

Being a Flight Engineer for 14 years before i retired from the Air Force, having Accurate fule avaulable is a safty of flight deal for me. There are way to many viariables when flying that knowing on a quick glance what is available is critical.

Just using a flow meter is not accurate enough when a problem happens.

Once coming back from Japan out over the Ocean at night we had a dump valve start leaking and we did not fine it for about a hour and we lost alot of fuel in the process. The Fuel flow showed the correct fuel burn but the fuel gauges showed what was really left in the tanks. We deverted to Shemya Island out at the end of the Alaska Alutian Chain of islands and got feul and fixed the leak.

If it was not for the hourly readings and compairsion between actual available and what should be available that every flight engineer does, we would of never discovere the lak and we could of been in real trouble.

So having accurate fuel gauges is very important.

Fuel leaks do happen quiet offen. Even a sump valve can dump a half a tank in a very short time and being on the bottom of the wing you would not even know it.

So my vote is do some research, there are several web sites showing the install for the Vans Kits in the -10 fuel tanks, order the kit and go for it.

John Cumins
40864 Emp done wings, rear spar inprogress
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  #18  
Old 02-10-2011, 07:26 PM
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Quote:
Originally Posted by jc11378 View Post
From the research i have done on this,i think the easiest and cheapest way to go is the Vans kits and make two new aluminum plates to fit the -10 ribs and go from there, the bnc connector idea is very simplistic no parts to go bad and very easy to install. There is no need to to a probe install from ACS. Vans sells a kit for the -9 that will work perfectly and no issues from what I have seen.
So my vote is do some research, there are several web sites showing the install for the Vans Kits in the -10 fuel tanks, order the kit and go for it.
John Cumins
40864 Emp done wings, rear spar inprogress
I thought about doing the Vans kit adaption but decided against it. When I emailed Vans support with the idea of using their home brewed sender they pretty much said not to. The one main feature of using the Princeton 5 point set capacitance probes are for the accuracy. The 5 point set helps to give a more accurate reading on the actual fuel in the tank because of the varying level of fuel due to the wing dihedral. Nothing wrong with rolling your own. I installed the standard 2 point set on the Cozy MKIV because the tanks are level. The accuracy is amazing.
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RV-10: #41686 Under Construction
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  #19  
Old 10-11-2013, 12:06 PM
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LAMPSguy LAMPSguy is offline
 
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Default Redundancy

All of the military aircraft I have flown have used float type units for quantity and a separate binary capacitance type for low fuel...light comes on once it is uncovered, you place it near the bottom with X amount of gallons remaining. We have always just assumed that fuel quantity is approximate and never plan to land with low fuel, but if the "low fuel lights" come on, you KNOW you are low.

Is there any type of small, simple low level sensor like this out there for GA?
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  #20  
Old 10-11-2013, 03:37 PM
HowardGMac HowardGMac is offline
 
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Quote:
Originally Posted by LAMPSguy View Post
Is there any type of small, simple low level sensor like this out there for GA?
You mean something simple like these?

http://www.aircraftspruce.com/catalo...s/fuelwarn.php
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