Hierarchy classification:

1. top of the aat hierarchies
2. Objects Facet
3. Furnishings and Equipment (hierarchy name)
4. Weapons and Ammunition (hierarchy name)
5. weapons
6. projectile weapons
7. [projectile weapons with nonexplosive propellant]
8. [projectile launchers with nonexplosive propellant]

Anotations

Scope note:

Medieval military weapons consisting basically of a lever with a great weight attached to the short arm and a basket, box, or sling attached to the end of the long arm to hold projectiles. When the weight is permitted to fall, the projectile is hurled with great velocity. Distinct from "biffas" in which the weight is attached flexibly to the longer arm and is movable.