engine pictures.

frank clementi


Nice work on the motor plate.

The front motor mounts are going along for a ride :)
The rear motor mounts are taking 90% of the load.
That is because the CG of engine,GB and prop combo is just
about inline with the rear motor mounts.

You only need three.  "A structure will be statically indeterminate
whenever it is held by more supports than are required to maintain
its equilibrium."


In mechanical engineering it is called redundant constraint. Google it :)

The front rubber bushing can be real small as the load on it is near zero.

Please try just attaching those pictures to your email Frank.
Don't ship them off to some web site.
Many emails add's do not accept zip files.

Paul Lamar

How much redrive weight was saved with the Swiss Cheese technique Frank?
Chris Cosman

Chris,
I don't know how much was saved on the re-drive; but
if you'll look close you will find that was done all over
the engine as well as the entire airplane. This in
conjunction with aerodynamic streamlining will give
me the fastest aircraft possible.
Frank

You need to streamline the intake runners :)

Paul Lamar


Paul,
The intake runners are patterned exactly like
the Mistral engine. I think that is about as
streamlined as possible. You will get an idea
what they will look like in the near future. I
need to resolve the pic's attachment issue
first. I will try to send you the same pic's a
little differently this A.M.
Frank

P-ports are much much better. Lower fuel burn per HP generated
and 50 HP more. Getting the air in efficiently is the best way
and easiest to improve the rotary.

http://www.rotaryeng.net/fund-of-intake.html

Mistral would have received more positive PR if they had offered
250 HP instead of only 200 HP. They may still have been in business.
It was a big mistake on their part to stick with side ports.
We tried to talk them into p-ports but you can lead a mule to water
but you can't make him drink :)

Paul Lamar



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