Hovercraft

Q: If I found a commercially available product containing a brushless motor attached to a fan, must it be labeled as a "cooling fan" to be legal? (section: 4/ paragraph:  i/ sub-paragraph:  / line:1 )

A: No. As long as it is a fan typically used for cooling electronics or computers it does not need to be labeled as such.

Q: Can commercially available rechargeable battery packs that are labeled <= 9.0 V be used as a power source. (section: 4/ paragraph:  4/ sub-paragraph:  / line: 1)

A: Yes.