| Clue | Source | Date |
|---|---|---|
| Train tech | Newsday | 10 May 2024 |
| High speed train | ||
| Bullet train technology | LA Times Daily | 14 Jul 2023 |
| Train type that has hit 374 mph | Universal | 02 Jan 2021 |
| Train technology | Newsday | 02 Jul 2016 |
| Fisherman | The Times Concise | 20 May 2016 |
| Bullet train technology | Wall Street Journal | 23 Feb 2016 |
| Bullet train type | ||
| Frictionless rail system | ||
| Car-suspension system | ||
| High speed train: abbr. |