I may be dumb but surely the totaliser must be accurate, unless the pipework was bodged and turbulence is entering the sensor and making it nonlinear – like Socata did.
And I can’t see how the power v. fuel flow line can be so clean. Engines are monotonic (if always run at peak EGT or LOP) but they won’t be anywhere near linear. Throw in some funny ignition timing etc mapping in the ECU and…
That’s not actual power – it’s “load” (whatever it is) – I believe it’s something derived from actual power and fuel flow to make it easier for pilots to track it and keep engines in sync.
BTW max difference that I noticed on my TB20 between totalizer and actual quantity was 1 USG.
It sounds like you are getting what I was getting before the flow transducer was relocated IAW the Shadin STC… something which cannot be legally done on an EASA-reg aircraft.
Can anyone post a photo of the pipe which feeds the transducer?
