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  #11  
Old 11-28-2022, 12:06 AM
planenutz planenutz is offline
 
Join Date: Jan 2005
Location: Arrowtown, New Zealand
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With the exception of the whiskey compass which is equally as useless, the fuel gauges in the RV-6 I've been flying for the last 26 years are absolutely a waste of panel real estate. I can put my hand on my heart and say that in all this time I have only once referred to them and that was out of curiosity, to see whether they worked. They do, but only when the fuel quantity drops below 50% do they start to move. Today, I couldn't tell you if they were still working or not. We just never look at them let alone rely on them.

Our practice is to dip the tanks before getting in and then making sure the fuel quantity is reflected correctly on the E.I Inc Fuel Flow Gauge prior to start. The E.I Inc system works great and the rest comes down to fuel management between tanks. I've never been in the habit of relying on fuel guages on any G.A. aircraft. Knowing the engines typical fuel flow and erring on the high side has meant I am yet to run out of fuel.

Touch wood.

Buy a good Fuel Flow system and enjoy the benefits it brings.
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  #12  
Old 11-28-2022, 01:14 AM
gasman gasman is offline
 
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Location: Sonoma County
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For over 16 years, my Van's fuel gages have been very accurate. I have dedicated ground lines for each gage. I stick my tanks before every flight. The stick is marked per gallon and has been proven to be less than 1/2 of a gallon (5 minutes of flight) off at fill up.
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  #13  
Old 11-28-2022, 08:35 AM
jbDC9 jbDC9 is offline
 
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Location: Houston, TX
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Quote:
Originally Posted by gasman View Post
For over 16 years, my Van's fuel gages have been very accurate.
Same; gauge wonkiness aside, most of the time my Vans gauges are very accurate.

But, this discussion appears to have set off the gremlins again; when I flew yesterday the left fuel gauge played dead during engine start. Recycling the master switch fixed it. First time my left gauge has done thatÖ looks like one day soon Iíll be dumpster diving behind my panel to swap out both gauges.
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  #14  
Old 11-28-2022, 09:53 AM
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plehrke plehrke is offline
 
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Quote:
Originally Posted by jbDC9 View Post
But, this discussion appears to have set off the gremlins again;
Reason why I will not post my experience over last 16 years with my fuel gages.
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  #15  
Old 11-28-2022, 09:54 AM
PilotjohnS PilotjohnS is offline
 
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Is it legal to fly with an in op fuel gauge, asking for a friend?
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  #16  
Old 11-28-2022, 10:09 AM
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jneves jneves is offline
 
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Odd for me to say, but my 20 year old Van's mechanical gauges are very accurate, if they read 10 gallons remaining in level flight, and I land and top off they come in +/- 1 gallon. I have a JPI EDM350 and have contemplated moving the fuel levels over to it, but the last thing I want is to go from accurate to inaccurate, so I've decided to leave them as is for now.
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  #17  
Old 11-28-2022, 10:37 AM
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Ironflight Ironflight is offline
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Quote:
Originally Posted by PilotjohnS View Post
Is it legal to fly with an in op fuel gauge, asking for a friend?
In an Experimental? Sure - unless the Operating Limits say otherwise. Generally speaking, E-AB aircraft require no instrumentation at all to be legal to fly….

I would, however placard something that doesn’t work as “inoperative”, just because that rule can get fuzzy in the E-AB world with many FAA inspectors….
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Last edited by Ironflight : 11-28-2022 at 12:25 PM.
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  #18  
Old 11-28-2022, 11:03 AM
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Sam Buchanan Sam Buchanan is offline
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Quote:
Originally Posted by Ironflight View Post
In an Experimental? Sure - unless the Operating Limits say otherwise. Generally speaking, E-AB aircraft require no instrumentation at al to be legal to fly….
Just for clarification.....the above statement is true for day VFR ops. Most Operating Limitations state night and IFR require compliance with FAR 91.205....pretty sure that is what Ironflight was saying.
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  #19  
Old 11-28-2022, 01:41 PM
gasman gasman is offline
 
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Location: Sonoma County
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Quote:
Originally Posted by jbDC9 View Post
Same; gauge wonkiness aside, most of the time my Vans gauges are very accurate.

But, this discussion appears to have set off the gremlins again; when I flew yesterday the left fuel gauge played dead during engine start. Recycling the master switch fixed it. First time my left gauge has done thatÖ looks like one day soon Iíll be dumpster diving behind my panel to swap out both gauges.
You may just have a dirty connection. The surge of the master makes a temporary connection.... like a bad starter solenoid on a car that will start after several key movements.

These gauges require clean connections. Clean each one and coat with De-Ox.
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  #20  
Old 11-28-2022, 04:55 PM
andoman andoman is offline
 
Join Date: Jul 2006
Location: Payson, AZ
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I built an early -7A that first flew in ‘03 with vans gauges. 75% of the time one or both of the stock Van’s gauges would die to zero during start and not come back alive. Cycling the master always resurrected them.
Before I got out of phase 1 I put a fuel gauge power switch in the panel. After start I flipped it on and the gauges always came to life and were fairly accurate all of the 15 years I owned the plane.
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