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John,

You wrote:

> Please be aware that the first stages for the Odin and the Cyklon, although
> they look alike, are not.  There is a first stage "boost" to the "R" port
> and this boost is more pronounced in the Odin first stage as compared to 
> the Cyklon first stage.  Poseidon does not recommend using the Cyklon
> on the Odin first stage as this "boost" can make freeflow situations 
> worse with the Cyklon (to the point that the free flow can only be terminated
> by turning off the pressure to the first stage.)

I would think, from a systems engineering viewpoint, that if the intermediate
pressure is the same, it would not matter.  If the output of both first
stages is set at 170 psi (also not to exceed 170 psi), for example, this
input into the second stage would be the same regardless.  When I say this,
I am thinking of the first and second stages as two separate black boxes,
their only communication with each other being the intermediate pressure.

I would like to know what you think of this.

Christina

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