Hi Folks, For what it's worth, we have two tachometers in our XS
demonstrator here in Lakeland. One of the analog variety, and the rotax
flydat. The analog is not even close. Coming home from Georgia today,
showing 5,100 rpm on the flydat, only displays 4,750 rpm on the rotax
analog. Very easy to overrev it! The flydat has been checked and verified.
Now I know why there's two.
Jim Thursby
N814AT
>After all the chat recently about inacurate rev counters on our Europas,
>admittedly of the annalogue variety, it got me to windering about our
>aircraft. We have got one of the Grand Rapid EIS Engine Monitors which is a
>completely digital affair.
>Yesterday I took my hand held optical tachometer flying with me and to my
>relief (as I in fact really expected) the EIS is very accurate over the
>whole engine RPM range. I in fact found no trouble in obtaining readings
>through the windscreen in flight with the hand held unit.
>
>Dave Watts 'XDY
>(Now with 190 hours on the clock and 2 weeks to go to our 1st birthday
>party. Will we get past the 200 hour mark in that time?)
>
>
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