The question is, how does ignoring the return flow affect the accuracy
>> of the fuel flow instrument? It depends on the quantity of the return
>> flow of course. Is there any data about this? Maybe in the rotax
>> maintenance manuals?
>>
>
> That's indeed the question I so far have not found an answer to. The
> only thing I was told by different people is that return flow varies
> with RPM, but no hard numbers on return flow have made it my way. So
> basically I *know* there will be an inaccuracy when ignoring return
> flow, but *do not know* just how large this inaccuracy is (hence my
> attempt to come up with something better for a single sender setup).
>
> Marcel
>
Marcel
The return flow does not affect your fuel flow to the engine and that is
what you are measuring. So you can forget about it with this configuration
Graham
|