jpg12305 wrote:
> If I properly understand, this demonstrates that fuel consumption increases
> very
significantly with altitude, right?
>
> I have heard/read a lot of different things about altitude compensation for
> the
Bing carbs. Some say there is compensation by design, some that there is no
compensation at all, and some that there is only partial one.
>
> I would think now the second statement is the right one!
>
> My own experience (without having a flowmeter nor CS prop) is that I have
> never
seen an apparent MPG increase by flying high.
>
> I would be interested in seeing some other data confirming yours.
>
> Jean-Paul
> Europa 332 - France
>
>
There is a mod for mixture control, I know the UK agents (Nigel Beale at
SkyDrive) tried it and they may offer a mod. It involves adjusting the
overpressure on the carb float bowl, which has a significant effect on
mixture. Don't try this at home without consulting a Rotax expert.
You definitely need EGT to see what's happening.
Graham
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