Fanboy... Seriously: any engineers know anything about CFM?

Illustration for article titled Fanboy... Seriously: any engineers know anything about CFM?

So here’s a 16-inch fan, a Patton “High Velocity” from fifteen or twenty years ago, when Patton fans weren’t noisy, inefficient pieces of doo-doo.

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What do you think the likely CFM range might be on such a fan as this one?