Luso Aviation Fuelhawk Aircraft Fuel Gauge for Cessna 172 — 11" Calibrated for 20‑Gallon Usable Tanks, Clear Fuel‑Safe Plastic

The Luso Aviation Fuelhawk is a portable, calibrated fuel gauge designed to quickly measure usable fuel in a Cessna 172 tank with 20 gallons usable.

Built from durable, fuel-safe clear plastic, this 11-inch Fuelhawk lets pilots verify tank contents without relying solely on aircraft gauges. It’s a simple dipstick-style tube that locks fuel inside for an immediate read in U.S. gallons. Because it’s tailored to the Cessna 172’s tank dimensions and usable capacity, it provides a convenient secondary means of estimating fuel on board when weight, load planning, or suspicious instrument readings make confirmation necessary.

How do I use the Fuelhawk in my Cessna 172?

Using the Fuelhawk is straightforward: insert the tube until it reaches the bottom of the tank, cap the top with your finger to trap fuel, then withdraw and read the level. Readings are displayed in U.S. gallons and calibrated specifically for the Cessna 172 20-gallon usable tank, so you can interpret the measurement immediately without conversion.

• Insert until tube touches tank bottom; hold finger over top opening.
• Withdraw and read the trapped fuel level in gallons.
• Use only with Cessna 172 tanks rated 20 gallons usable.

What materials and dimensions make this suitable for aviation use?

The Fuelhawk is molded from heavy-duty clear plastic formulated to resist yellowing, fading, and cracking from exposure to fuel and sunlight. At 11 inches long it matches the depth needed to reach the usable fuel in the specified Cessna 172 tank while remaining compact enough for cockpit storage.

• Heavy-duty clear plastic resists discoloration and cracking.
• 11" total length calibrated for the C-172 20-gallon usable tank.
• Safe for aviation fuel contact and easy to clean between uses.

When should I rely on the Fuelhawk versus aircraft fuel gauges?

The Fuelhawk is intended as a secondary verification tool, not a primary certified instrument. Use it when you need to confirm a suspected discrepancy, when flying with less-than-full tanks due to weight limits, or as a preflight cross-check. Always consult the aircraft’s AFM/POH for official fuel system procedures.

• Use as a confirmatory measure alongside cockpit gauges.
• Helpful for weight-and-balance planning with partial fills.
• Not a replacement for official fuel quantity instruments or procedures.

Who this tool is for: Owners and pilots of Cessna 172 aircraft with 20 gallons usable per tank who want a quick, portable way to confirm fuel quantity. It suits flight schools, flight instructors, private owners, and maintenance personnel who need a rugged, simple device for spot-checking fuel levels. Remember to park the aircraft level before measuring and to follow AFM/POH guidance; the user remains responsible for fuel calculations and decisions.