| AP | Atlantic/Pacific Round-the-World |
| AT | Atlantic Ocean |
| CT | Circle trip |
| DO | Domestic |
| EH | Eastern Hemisphere |
| FE | Within the Far East |
| PA | Pacific Ocean |
| PN | TC1-TC3 via Pacific/N. America |
| PO | Polar Route |
| RU | Russia Area 3 |
| RW | Round the world |
| SA | South Atlantic only |
| TS | Trans Siberia Route |
| WH | Western Hemisphere |
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