fuel flow on the cheap

[pittss1c]

Does anyone here have any experience with marine fuel flow instruments
on aircraft?
I was thinking of the Navman 2100 or Lowrance LMF-200.

Are the transducers less fail-safe then their aviation counterparts?
Should a transducer bypass be considered a "must have"?

thanks
Mike

[George A. Graham]

On Fri, 5 May 2006, pittss1c wrote:
Does anyone here have any experience with marine fuel flow instruments
> on aircraft?


I have flown with the Navman unit for a few years now. I think that
I paid about $150 for it. I found it on Ebay at BoatersWorld.

There is a little impeller which spins as the fuel flows through it,
the instructions tell you to install a fuel filter before the
transducer, which I did. It works fine.

If the was enough crap in the fuel to block the transducer, it would
also foul the carb. No bypass needed.

I like it.


George Graham
RX-7 Powered Graham-EZ, N4449E
Homepage <http://bfn.org/~ca266>

[John Kunkel]

"George A. Graham" > wrote in message
...
> On Fri, 5 May 2006, pittss1c wrote:
> Does anyone here have any experience with marine fuel flow instruments
>> on aircraft?
>
>
> I have flown with the Navman unit for a few years now. I think that
> I paid about $150 for it. I found it on Ebay at BoatersWorld.
>
> There is a little impeller which spins as the fuel flows through it,
> the instructions tell you to install a fuel filter before the
> transducer, which I did. It works fine.
>
> If the was enough crap in the fuel to block the transducer, it would
> also foul the carb. No bypass needed.

You don't necessarily need crap to block the transducer, the design of the
impeller paddles in some units will block flow if the impeller seizes.

[reader]

"John Kunkel" > wrote in message
...
>
> "George A. Graham" > wrote in message
> ...
> > On Fri, 5 May 2006, pittss1c wrote:
> > Does anyone here have any experience with marine fuel flow instruments
> >> on aircraft?
> >
> >
> > I have flown with the Navman unit for a few years now. I think that
> > I paid about $150 for it. I found it on Ebay at BoatersWorld.
> >
> > There is a little impeller which spins as the fuel flows through it,
> > the instructions tell you to install a fuel filter before the
> > transducer, which I did. It works fine.
> >
> > If the was enough crap in the fuel to block the transducer, it would
> > also foul the carb. No bypass needed.
>
> You don't necessarily need crap to block the transducer, the design of the
> impeller paddles in some units will block flow if the impeller seizes.

Agreed.
And the other 'area of concern' (at least for me) was the fact the
transducer has hosebarbs (cannot use AN fittings).
Not good.

I like the product and run one on my Glasply 19' boat. I would not run it on
my aircraft.