WWI Technology
Across
- 3. Powered aircraft with fixed wings and a weight greater than that of the air it displaces.
- 5. A type of airship used for spying during WWI.
- 6. Rapid-firing automatic firearm capable of sustained fire.
- 7. A fortified defensive position often dug into the ground.
- 9. Large-caliber guns used for long-range bombardment.
Down
- 1. Chemical weapon used during WWI, causing respiratory problems.
- 2. Watercraft capable of submerging and operating underwater.
- 4. The barren and dangerous area between opposing trenches.
- 8. Device that projects flamable liquid to cause ignition.
- 10. Armored military vehicle designed for front-line combat.