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## Main Question or Discussion Point

Hello, I'm new here so be gentle.

I have a fan that produces 400CFM.

I am attaching the fan to a 4 inch pipe in an effort to move a 2lb object down a near frictionless track.

I'm having trouble figuring out CFM to the pressure/force that will act on the object.

The object is approximately 2in X 4in or 8sq.inches of surface area.

Any help is appreciated.

If 400 CFM is not enough. What would be a general formula to equate how many CFM's I need to move an object?

Thanks

I have a fan that produces 400CFM.

I am attaching the fan to a 4 inch pipe in an effort to move a 2lb object down a near frictionless track.

I'm having trouble figuring out CFM to the pressure/force that will act on the object.

The object is approximately 2in X 4in or 8sq.inches of surface area.

Any help is appreciated.

If 400 CFM is not enough. What would be a general formula to equate how many CFM's I need to move an object?

Thanks