Duty Navigation multiplies the effectiveness of your ship's sailors, and allows memorization (or "memming") of ocean leagues. Also now it affects the types of spawns you get. As of the March 2007, better Duty Navigation performance will increase the likelihood of encountering spawns set in the voyage configuration.
| Graph IRI | Count |
|---|---|
| http://dbkwik.webdatacommons.org | 94 |