Welcome Guest. Sign in or Signup

2 Answers

Fuel stick for 172

Asked by: 2368 views
Aircraft Systems

I bought a fuel quantity test stick for the C172. Not sure where the bottom is when measuring the tank. If you put it straight down, you hit a raised area in the tank. If you angle it slightly to the side, it goes deeper. Which is the accurate depth to measure the tank quantity? Thanks.

Ace Any FAA Written Test!
Actual FAA Questions / Free Lifetime Updates
The best explanations in the business
Fast, efficient study.
Pass Your Checkride With Confidence!
FAA Practical Test prep that reflects actual checkrides.
Any checkride: Airplane, Helicopter, Glider, etc.
Written and maintained by actual pilot examiners and master CFIs.
The World's Most Trusted eLogbook
Be Organized, Current, Professional, and Safe.
Highly customizable - for student pilots through pros.
Free Transition Service for users of other eLogs.
Our sincere thanks to pilots such as yourself who support AskACFI while helping themselves by using the awesome PC, Mac, iPhone/iPad, and Android aviation apps of our sponsors.

2 Answers



  1. Tim Smolen on Nov 22, 2011

    You must first calibrate the fuel stick, even if you bought it for a specific make and model plane. Fill up your tanks and insert the stick. See if there is a difference between what’s indicated and what’s in the tank. 
     
    I would not hold the stick at any angle because liquids can travel upwards due to surface friction and by angling the tube you’d increase the likelyhood of that happening.
     
    Fill up the tanks, insert the stick straight down, make a note of the offset and use that from now on.

    0 Votes Thumb up 0 Votes Thumb down 0 Votes



  2. Nathan Parker on Nov 22, 2011

    “Which is the accurate depth to measure the tank quantity?”
     
    I recall that that the instructions with the stick warn you about hitting raised area.  You can probably move the stick around enough to miss it while keeping it vertical;  if you can’t, a slight angle shouldn’t affect the accuracy.

    0 Votes Thumb up 0 Votes Thumb down 0 Votes


The following terms have been auto-detected the question above and any answers or discussion provided. Click on a term to see its definition from the Dauntless Aviation JargonBuster Glossary.

Answer Question

Our sincere thanks to all who contribute constructively to this forum in answering flight training questions. If you are a flight instructor or represent a flight school / FBO offering flight instruction, you are welcome to include links to your site and related contact information as it pertains to offering local flight instruction in a specific geographic area. Additionally, direct links to FAA and related official government sources of information are welcome. However we thank you for your understanding that links to other sites or text that may be construed as explicit or implicit advertising of other business, sites, or goods/services are not permitted even if such links nominally are relevant to the question asked.