The 912 should be most efficient at the speed of its maximum torque, which
is 4800rpm. Worth a try I would say.
The "squared" rule was applicable to radials, then carried over (rightly or
wrongly) to 'flat' engines.
Duncan McF
----- Original Message -----
From: "Richard Holder" <rholder@avnet.co.uk>
Subject: Re: Europa-List: Manifold pressure gauge
> I tried 4600/26 which gave the same speed but over 200 litres made no
> difference to the fuel consumption. If anything it went up ! (that is
> consistent with your information) but I don't want to run faster than 5000
> so I am sticking with 5000/25.5 which gives around 120 knots at 16.2
litres
> per hour. Oops I wasn't supposed to say that ! :-)
>
> Richard
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