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Date: Mon, 28 May 2007 14:28:53 -0400
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Subject: Re: [LML] Re: TSIO 550 LOP
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From: "John Schroeder" <jschroeder@perigee.net>
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Lynn -

Where is your fuel flow sensor? If it is on the engine side of the engine fuel pump, it should read actual fuel flowing to the engine. The return is off of the engine pump and the sensor would not see that fuel. That is how it is on our IO-550N

John

On Mon, 28 May 2007 08:35:55 -0400, Farnsworth <farnsworth@charter.net> wrote:

> Are you guys factoring in the return to tank fuel for the Continental
> engine? Are the numbers you are listing the indicated fuel flow or the
> corrected ( actual ) fuel flow? It has been my experience that the
> difference between indicated fuel flow and actual fuel flow ( based on fuel
> burned ) is about 1 GPH.
>
>
> My TSIO powered Legacy:
>
>
> 1.	17,570' pressure altitude; 20,090' density altitude; 2490 RPM; 29.5"
> MP; 195 KIAS; Indicated Fuel Flow 18.9 GPH
> 2.	17,430' pressure altitude; 20,310' density altitude; 2510 RPM; 27.1"
> MP; 193 KIAS; Indicated Fuel Flow 19.1 GPH
> 3.	16,500' pressure altitude; 19,090' density altitude; 2490 RPM; 27.5"
> MP; 195 KIAS; Indicated Fuel Flow 19.0 GPH
> 4.	10,510' pressure altitude; 11,510' density altitude; 2490 RPM; 29.6'
> MP; 207 KIAS; Indicated Fuel Flow 18.8 GPH
>
>       5.     5,050' pressure altitude;
> 2900 RPM; 60.0"MP; 295 KIAS; indicated Fuel Flow 70.0 GPH
>
>
>
> Lynn Farnsworth
>
> Super Legacy #235
>
> TSIO-550 Powered
>
> Race #44
>
>