Ark of Venus by Clyde B. Clason
They hang chains off the bottom of the vessel which prevent the electromagnetic storms from damaging the vessel as it descends.
Look Closer by Amy Bechtel
Excerpts from the Google book:
Her dad and her brother Hamish were bringing in the last mob of sheep
off the hill pasture; it was shearing time. For a moment Jess felt out
of place. She ought to be down with them, helping with the work.
Shearing had hardly begun, and next year when tupping season and
lambing season came ...