Click a number to see the clue. Click "Hint" to get a free letter. When finished, click "Check my answer".

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Check my answer

Across: 1. Interplanetary vehicle 5. Ubiquitous equine transport of yore 6. Responds to hailing 7. Conveys heavy goods 8. Maritime vessel 9. Yellow in NY 12. 20th century invention

Down: 2. Machine capable of flight 3. Aft half of 2 Down 4. Carriages with locomotive 7. Large passenger vehicle 8. Found at sea & in space 10. Small passenger vehicle 11. A type of 12 Across