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J.P. Instruments Fs 450 Gravity Fed +

$549.00/Each
Part# 10-00134
MFR Model# 450000-G

Overview

The Aviation Consumer, Product of the Year. JPI’s FS-450 is our top choice because it has all the options you need for fuel management.

JPI’s newest piece of panel wizardry relegates fuel-situation questions to relics of the past. From its new home between the top row of flight instruments and the top of avionics stack, the FS-450 blinked and winked the numbers to answer all my fuel-situation questions.

Connected to our Honeywell Skymap IIIC, the FS-450 happily winked and blinked its way through its information inventory and left me as relaxed as any fat-dumb-and-happy aviator should get — minus the “dumb” part of the equation, of course. Heavy-duty information and a light-duty price; could you want more? Sure, easy installation would be nice, something JPI also covered.
   
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Features

Fuel Used (USD):
How much fuel has been used since you last refueled. This number will always become larger as fuel is consumed. You can instead show the fuel used on a long multi-fuel stop flight and we will see later in this video how to do that.

Fuel remaining (REM):
How much total fuel remains in the aircraft. Only total fuel remaining in the aircraft is calculated.

Hours and minutes remaining (H.M.):
Based on the current fuel flow rate, displays the remaining endurance time. This parameter is most meaningful during cruise. During sea-level climb the fuel flow rate will be almost twice that of cruise and the endurance indication will be about half of actual. On the other hand, during a power reduction descent, the endurance will indicate more time than is actually available when flying at cruise power.

Fuel Required to Waypoint/ Destination (REQ):
This parameter will be displayed only if your EDM is receiving flight data from your GPS (this is a standard feature which is included with the Fuel Flow option). This will tell you how much fuel is required to get to the next waypoint or destination programmed on your GPS, based on your current fuel flow rate and present position.

Fuel Reserve (RES):
Fuel reserve when you arrive at your next waypoint. This parameter will be displayed only if your EDM is receiving flight data from your GPS (this is a standard feature which is included with the Fuel Flow option). This will tell you how much fuel reserve you can expect when you arrive at your next waypoint or destination programmed on your GPS, at the current fuel flow rate.

Specifications

  • Dimension: FS-450 – 2.5 x 2.5 x 2.3″ deep incl connector.

Benefits

  • FAA TSO for Reliability and Accuracy, a 3 year warranty.
  • Talks to all GPS’s including Garmins 430/530 and all handheld’s etc. Displays gallons required to next waypoint or destination at no additional cost. FP-5L does not report “gallons to destination”. FP-5L does not work with a “handheld” GPS.
  • Programmable display for Gallons, Pounds, Liters. No imperial gallons .
  • Remote “Warning Light” programmable with Low fuel and low time warning.
  • Automatically calculates K- factor for excellent 1% accuracy
  • Return line systems (Pressure Carburetor) and gravity flow, no problem.
  • Clock size, 1.5″ deep, 2 1/4″ hole, 5.0 oz. wt.,
  • Transducer 3 oz. wt.
  • TSO’d for use in turbo-prop aircraft.
  • When your, El, Hoskins, or Shadin fails upgrade it to destination an FS-450 using old transducer.
  • Automatic reminder (flashing digits) to update Fuel added. Fuel added Can be set after take-off not possible with the FP-5L/FP-5
  • “USED” Total fuel used can be set to zero at any time during flight.
  • Twin and Single FS-450M instrument.
  • %HP Calculated on fuel burn.
  • Timer included

In The Box

  • Indicator
  • Fire Sleeve
  • Harness
  • Transducer
  • Pilots Guide

Reviews

Excellent product with easy install! Can’t put into words how comforting it is to know exactly how much fuel is available. Everything in aviation has come a long way since 1955 when my Tripacer was certified, the FS-450 brings the fuel management into the present century!

Joel D Verified Purchase

J.P. Instruments Fs 450 Gravity Fed +

April 18, 2024

Awesome unit and aircraft spruce had it to me in two days. Great experience. Thanks.

Frank H Verified Purchase

J.P. Instruments Fs 450 Gravity Fed +

August 29, 2023

Fast and easy to buy online with Aircraft Spruce. The Alaska store needs more staffing to be more efficient. They are always pleasant but they are slammed.

Theo P Verified Purchase

J.P. Instruments Fs 450 Gravity Fed +

March 7, 2023

Michael D Verified Purchase

J.P. Instruments Fs 450 Gravity Fed +

December 14, 2022

As of today I have not been able to get the FS-450 to work. After the install and it didnt work I contacted tech support who made me feel like I was some kind of ignorant moron. There suggestion was to blow through the transducer to see if the pulse wheel was spinning which it was. So what now? Well you can call the RMA department and get an RMA to send it back to be bench tested, DUH! After 15 emails back and forth with JPI RMA department I finally got the RMA and sent the transducer back. Im currently waiting a reply. Needless to say Im not impressed with JPI, especially Tech Support, and will not be doing business with them again.

Richard Verified Purchase

J.P. Instruments Fs 450 Gravity Fed +

June 3, 2022

AM having problems setting it up.

Ronald H Verified Purchase

J.P. Instruments Fs 450 Gravity Fed +

July 22, 2021

Very nice! Easy to read and programing was easy also. Two videos on YouTube from JPI on how to use it.

Jason L
July 24, 2020

Excellent addition to any panel.

Peter K
October 3, 2019

Best upgrade I did for the plane. When coupled to a compatible GPS it provides a great sense of fuel quantity situational awareness. Itll let the pilot know if there is enough gas to make it to the next waypoint or not. Well worth the price.

Edward S
May 7, 2017

Very good

Jonathan
April 6, 2017

Q&A

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: Does the JPI FS 450 GRAVITY FED (P/N: 10-00134) come with a FAA FORM 8130-3?

No, these do not come standard with an 8130-3 form. These must be requested at the time of order.

Q: Does the JPI FS 450 unit include the transducer?

Yes it does as you have to select gravity fed (231) or fuel pump (201) system.

Q: I just purchased a 1966 Piper PA28-235 with no current fuel computer system installed. What else do I need to order with the JPI FS 450 for my mechanic to install the system?

Please note that the FS 450 cannot be used as a primary fuel flow in your panel (in can be used for secondary). The JPI FS 450 comes with all the parts to install the FS 450 but other parts like tubing and connections from your fuel system need to be ordered separate. We recommend you and your mechanic review the manual on our documents tab before ordering to make sure the install is efficient.

Q: I just purchased a 1966 Piper PA28-235 with no current fuel computer system installed. What else do I need to order with the JPI FS 450 for my mechanic to install the system?

Please note that the FS 450 cannot be used as a primary fuel flow in your panel (in can be used for secondary). The JPI FS 450 comes with all the parts to install the FS 450 but other parts like tubing and connections from your fuel system need to be ordered separate. We recommend you and your mechanic review the manual on our documents tab before ordering to make sure the install is efficient.

Q: What is included with the J.P. Instruments Fuel Scan FS450? Is it compatible with a Cessna 182R?

Items included are the indicator, fire sleeve, harness, transducer and pilots guide. If you want to use it with your Cessna, you will need to use the gravity fed version (10-00134).

Q: I have a Cherokee 180 and wanted to add this to augment my fuel gauges. Can I install the FS450?

The manual describes the procedure for installing the Fuel Scan FS450 as a secondary gauge including the necessary placards you must include with the installation of the gauge.

Q: Which J.P. Instruments Fuel Scan FS 450 would work on a Cessna 150M?

For a Gravity Fed Fuel aircraft such as the Cessna 150 series you would need part number 10-00134.

Q: Does the FS450G have the flow labelled in Gal/Hr on the gauge, or is the label units/hr?

The JPI Fuel Scan FS450 is programmable to either gallons, pounds or liters.

Q: I have the EI Red Cube transducer fitted. Is that compatible with the JPI FS 450?

The recommended transducers are listed for the FS450 in the installation manual by JPI. Using another manufacturer’s transducer is not recommended or tested.

Q: Is there a wiring harness available for the FS 450 transducer to indicator?

For the fuel scan FS450, part numbers 10-00135 and 10-00134, the harness is included with the instrument.

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