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Old Feb 12, 2010, 11:22 PM
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A few more photos.

The Wemo micro fan sweep are:
D=49.8mm
d= 26.8 mm

Deq= (49.8^2-26.8^2)^.5 = 41.97mm
80% FSA diameter = 41.97 * .8^.5 = 37.54mm

Measured exit diameter = 39.4mm
So exit is (39.4/41.97)^2= 88% FSA which is a good value for most power settings. If you want to go for more speed instead of thrust then 80% is a good mix of thrust and speed

Sounds like a "nip and tuck" is in order for more speed.

Don
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Last edited by The Don; Mar 17, 2010 at 12:29 AM. Reason: Corrected FSA calculation.
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