(2.10-001) The Quantity and Size of the Airlocks in an Orbital Habitat

Airlocks will be needed in order exit an Orbital Habitat.

What size of airlocks will be required? What is the maximum size needed to be imported or exported from an Orbital Habitat?

Should the airlocks be coincident with the Design Axis or should they be dispersed around the hull or both?

What is a reasonable number of airlocks for a given size of habitat?