The industrial spaceport is not a port at all, but a series of docking airlocks. These allow ships too large or too hurried to land at Port Town the ability to dock with Floating Home and take on or offload cargo.
Anyone looking to dock with one
of these ports from the outside
will have to get clearance
from the Wing Guard,
otherwise he may be
met by a cloud car patrol and find the port
in question firmly
locked.