From: rertman@ix.netcom.com
Date: Mon Jul 05 2004 - 10:23:57 PDT
Thanks for the clarification, Kenny.
Yes, that's a reasonable assumption. Recip aircraft engines have a
moderate compression ratio and crank out about 1/2 HP per cube running
on 100 octane low-lead avgas. The reason is reliability...lower strain
on the engine. This goes back to to 1930's. More modern metallurgy may
have allowed an increase in that, but I've been away from aviation for
the past 6 years, so I can't be certain.
Regards,
Dick
Recovry4x4@aol.com wrote:
>
> I'm going to rephrase my question just a but to solicite more thought. On an
> average 4 stroke gasoline engine of low compression, is it unreasonable to
> estimate 1/2 HP, or maybe .4 HP per cubic inch? For those readers who dont know,
> the 4A084 is a flat 4 cylinder with 84 cubic inches displacement.
> Thanks,
> Kenny
>
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