pioneerspacesim/pioneer — pull request #1658 by irigi (2012-10-31 22:03:26+00:00)
Title: Trade ships with small accelerations do not land on planets

Trade ships that do not have acceleration to land on planets will not land on them and will not be spawned at them. This situation doesn't normally occur, but it does problem if you use mods where heavy ships have small accelerations. It was tested in #1588, here I submit it separately.