Douglas Fir wrote:

Dear Paul.

The ex Mazda engineers immensely enjoyed the flying videos.  Thanks for your
hard work:)

Some points I confirmed. As follow is our 'exchange'  I am marked with a *

*Under that you made a note RE  Best BFSC = 200 - 210 g/ps/hr  @ A/F =16?

Correct is A/F=16

*RE is the side port 13B?

Side port and peripheral port is almost same at each best conditions.

*Many of my friends on the mailing list believe the Renesis engine obtains
better fuel mileage than the 13B side port. above 3,000 rpm. I don't know
what to  say.

I don't know too.  Renesis side exhaust port has a little gain of expansion
ratio, it may improve thermal efficiency. But this gain is not so big.

.......In addition My friend wonders if the arrows indicate air flow in the
Diamond rotary.  He doubts the blower is for air cooling the rotors because
the bearings need oiling.  Harry Batson could you confirm this?

Thanks

Doug in Japan

" Some points I confirmed. As follow is our 'exchange'  I am marked with a *
 *Under that you made a note RE  Best BFSC = 200 - 210 g/ps/hr  @ A/F =16?
 Correct is A/F=16"

I am confused about this statement. Are you talking about the Lemans engines
BSFC air fuel ratio?

Paul Lamar
 
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