Compendium of Military Preparations, Volume 123

Military Assets: Fire — Illustrated Descriptions of Firearms, Part 12

When the propellant original: 藥 (powder/medicine) in the booster tubes is nearly exhausted, the rocket-arrows (huojian)These are the secondary projectiles housed within the dragon's body, which are triggered by the final sparks of the primary booster engines. inside the "belly" of the dragon fly out. Both the enemy personnel and their ships are simultaneously incinerated. This device is designed for use on both water and land.