You will probably still need a flow straightener. The twist of the air flow
caused by the prop may still be evident in front of the prop.
Not sure about this but I would expect it. It is darn sure in evidence
behind the prop.
Skip
At 05:19 PM 1/9/03 -0500, you wrote:
>I concur. Put the fan behind the model to pull air over it.
>Otherwise you will never get the turbulence and pulsations
>of the fan blades out of the air stream.
>
>Also, in many cases, you will want to run the fan up to speed
>and then turn it off and use the inertia of the air column
>to make your measurements (even upstream, the fan blade pulsations
>may be evident).
>
>my 2 cents.
>
>Thanks,
>Jim W.
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