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Topic Options
#415741 - 10/14/21 10:14 AM Re: Fuel dipstick measurements [Re: BHarbour]
SCArcherPilot Offline
Second in Command

Registered: 08/23/20
Posts: 112
Loc: Cartersville, Georgia
yeah, I would agree at 93%....i can accept that margin of error, although if you are making your own with a paint stick or something...you could factor that in. One day when I am adventurous enough or bored, I might actually drain my tanks at the lowest point and do one gallon at a time measuring just to see, but I am not there mentally yet LOL.
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#415751 - 10/14/21 02:00 PM Re: Fuel dipstick measurements [Re: SCArcherPilot]
BHarbour Online   content
Pilot in Command

Registered: 11/18/20
Posts: 264
Loc: AL
I'm replacing my right fuel tank and I'll try and do measurements off of the old tank.

Originally Posted By: SCArcherPilot
yeah, I would agree at 93%....i can accept that margin of error, although if you are making your own with a paint stick or something...you could factor that in. One day when I am adventurous enough or bored, I might actually drain my tanks at the lowest point and do one gallon at a time measuring just to see, but I am not there mentally yet LOL.
_________________________
K4VIB

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#415798 - 10/17/21 12:15 PM Re: Fuel dipstick measurements [Re: BHarbour]
SCArcherPilot Offline
Second in Command

Registered: 08/23/20
Posts: 112
Loc: Cartersville, Georgia
When I filled up my tanks this weekend, I took a pic of where the fuel line comes to on this dipstick. Now, I do fill just a little shy of the top of the neck near the cap, so my guess is it would only be at the 18 gallon mark if you subtracted out the little filler neck portion. It is hard to see but the fuel line on the dipstick is right at 19 gallons (you can see the distortion right above the one on the 19 mark. Somewhat of a bad angle to see it.

[img]https://ibb.co/6g1gRT9[/img]


Edited by SCArcherPilot (10/17/21 12:20 PM)
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#415835 - 10/18/21 01:10 PM Re: Fuel dipstick measurements [Re: SCArcherPilot]
BHarbour Online   content
Pilot in Command

Registered: 11/18/20
Posts: 264
Loc: AL
OK...I see the meniscus level. I get the same when my tanks are full...it's just the two marks below the zero that make it all funky. My replacement right tank came in Friday and I'll pick up the old right tank from my mechanic this afternoon. I hope, this weekend, to fill it up with water and drain off a gallon at a time and take measurements.


Originally Posted By: SCArcherPilot
When I filled up my tanks this weekend, I took a pic of where the fuel line comes to on this dipstick. Now, I do fill just a little shy of the top of the neck near the cap, so my guess is it would only be at the 18 gallon mark if you subtracted out the little filler neck portion. It is hard to see but the fuel line on the dipstick is right at 19 gallons (you can see the distortion right above the one on the 19 mark. Somewhat of a bad angle to see it.

[img]https://ibb.co/6g1gRT9[/img]
_________________________
K4VIB

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#415836 - 10/18/21 01:12 PM Re: Fuel dipstick measurements [Re: BHarbour]
rkittine Offline
Gold Pilot

Registered: 02/11/21
Posts: 1022
Loc: New York
I did the full drain and add a gallon at a time on one once. Got a very accurate dip stick but it was a lot of work.

Bob
_________________________
Robert Kittine
CFI,CFII, MEI
Sag Harbor and Manhattan, New York
WA2YDV



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#415838 - 10/18/21 03:12 PM Re: Fuel dipstick measurements [Re: rkittine]
BHarbour Online   content
Pilot in Command

Registered: 11/18/20
Posts: 264
Loc: AL
I imagine that it is a lot of work draining fuel out of the airplane. I'll sit the tank on a couple of saw horses (at the proper dihedral angle) and drain it that way. Will just take a good bit of time draining off 19.5 gallons.

What was the model 172 that you made the stick for?

Originally Posted By: rkittine
I did the full drain and add a gallon at a time on one once. Got a very accurate dip stick but it was a lot of work.

Bob
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K4VIB

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