Related Clues:
- The Spirit of St. Louis, e.g
- Shark fighter
- With 21-Across, motor for a Boeing 777
- Piper product
- Travel, in a way
- Tree with flat surface
- It's Project No. 5 - and that's flat!
- Something in two dimensions which travels in three?
- Speedy transport
- Aircraft - tool
- Aircraft - level surface - carpenter's tool
- Tree - aircraft
- Tree - figure - aircraft
- Aeroplane
- Plane - glossy black (stone) - stream