Part# 10-05941
MFR Model# TWIN-FT90


Flow: Instantaneous Display of Fuel Flow
Used: Fuel Used
Remaining: Fuel Remaining
Endurance: Time or Distance Remaining
Required: Fuel Required to Active GPS Waypoint
Reserve: Fuel or Time Remaining at Active GPS Waypoint
Efficiency:Miles Per Gallon (or Liter) Displays Fuel Flow and Fuel Used for Engine
Size: 2-1/4" Panel Mount

This unit comes packaged with an EI FT-90 Flow Transducer. It is for use in aircraft with gravity-fed fuel systems, or between 350 and 500 HP. For engine-driven fuel pumps and up to 350 HP, please view the "Alternate Items" tab for kits equipped with the FT-60 Flow Transducer.
California Prop 65 Warning Symbol

WARNING: Cancer and Reproductive Harm -


  • Not for certified aircraft
  • FT-90 Transducer for Gravity-fed fuel systems, or horsepower between 350 to 500.
  • Single Engine Compatible (With Sender)
  • Communicates with Handheld or Panel Mount GPS
  • User Selectable Units (Gallons, Liters, Nautical Miles, Statute Miles)
  • Low Fuel Warning
  • Best Fuel Computer Value Available
  • Large Extreme Operating Temperature Display
  • Soft Orange Backlight with Automatic Brightness
  • Weighs 2.6oz
  • 2-1/4" Standard Panel Mount
  • 12-28 Volt Compatible

In The Box

  • EI FT 90
  • Pre-Wired Harness
  • Note: Connector is pin to pin compatible with many JPI, Hoskins & Shadin systems


A week ago I installed my new FC-10 coupled to my existing Red Cube in my RV-8, then flew from Billund, Denmark to Duxford, UK (3:50), back again after two days (3:30). The FC-10 is great! Both times it showed me that I had 1:20 worth of fuel left at 65% Power! With the exact indication of Fuel Flow, Fuel Remaining/Endurance, Fuel Used I likely saved me making a Fuel-stop in the Netherlands! It can even be coupled to a fancy GPS, showing fuel at every waypoint. VERY good value for 238 USD! :-) HIGHLY RECOMMENDED (I already had their RPM-indicator installed too).

Thomas S
September 26, 2019


Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

Q: Is this Flight Data System FC-10 size 2-1/4"?

Per the manufacturer, the FC-10 is 2-1/4" Standard Panel Mounted.

Q: Will this Flight Data System FC-10 work with a 582 Rotax with a standard pulse fuel pump?

This unit is only for gravity fed systems. For Rotax engines, we would recommend 10-03150 instead.

Q: Can this Flight Data FC-10 be used on certified aircraft?

No, this is not intended for certified aircraft.

Q: Good afternoon in your features section. Includes EI FT 90 ( less than 350 HP - fuel pump ) This is confusing. Dan Kehoe

The website has been corrected. This part comes with a FT-90, for gravity-fed systems between 350-500 horsepower. For engine driven system 350 or less horsepower, see p/n 10-03150 with the FT-60.