Is that motor-fan blade system clutched to react to a change
in air volume?
When I have a fan moving air & constrict the intake it gets
noisier - same air being sucked through a smaller passage -
sometimes whistling & sometimes requiring a baffle.
Yes, that will work of course, but it doesn't make the blower quieter,
at least not appreciably.
73,
Jim w8zr
Sent from my iPhone
You simply restrict the intake air flow which unloads the motor.
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Ron KA4INM - Youvan's corollary:
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David (NOT Dave) Colburn, KD4E - Nevils, Georgia USA
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