JPI's FS-450: An End to an Aviator's Avgas Anxiety? - AVweb

Somewhere north of Cape Girardeau, Missouri ...

Normally, by this point on a trip like today's my fuel situation never generates a thought. We've logged around 700 hours in the Comanche in the four years we've owned it, and we've flown this trip more times than any other; about 15 or 20 times in the past six years and nine or 10 of them in this airplane. We know it by heart: Four hours or less en route generally; usually direct; with seldom a fuel-related concern, especially when starting with a full load of fuel.


This is a companion discussion topic for the original entry at https://www.avweb.com/ownership/jpis-fs-450-an-end-to-an-aviators-avgas-anxiety

I’d like to know how you determined 125% of takeoff FF per the instructions. And how you checked it. A little confused on that part of the instal.I can’t even find what my T/O fuel flow is supposed to be in my manuals. Any help would be appreciated. Thanks