Building ship-level esprit de corps across space

How would esprit de corps work in science fiction when time and distance isolate ships?

Build loyalty around the current ship and crew rather than importing the customs and status of a previous command.

Great distance makes ship-level identity more important, not less. The 1944 pocketbook warns officers against constantly praising how their previous ship did things. Different ships can reach good results through different customs and methods. A science-fiction crew isolated by time and distance would still need to build loyalty around the vessel and people serving together now.