I'm missing something...

[Ron Schroeder]

>>My understanding was that the mass of the incoming air was what forced the
>>flapper door open.  If this is so, then it should compensate for density,
>>right?
>>
>>If that isn't how it works, then is it vacuum which opens the door?
>>
>>Any comments are more than welcome.
>>
>>Thanx,
>>Mike Diehl.


I think that it only "partially" compensates for altitude.  At a given
inlet absolute pressure the output is proportional to mass flow but I
believe the output based on inlet pressure is exponential not linear.  So
some compensation but not compleate compensation.

Ron Schroeder
WD8CDH
E. E. S.
wd8cdh at bnl.gov
rjs at bnl.gov
ron at 112motors.com
631 344-4561 Day
631 286-5677 Nite

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