- **sheath_type** &ndash; *optional* &ndash; for bladed weapons (e.g. swords), a description of the scabbard or sheath, if any.
- **head_type** &ndash; *optional* &ndash; for blunt or striking weapons (e.g. axes, polearms, or maces), a description of the head.
- **haft_type** &ndash; *optional* &ndash; for blunt or striking weapons (e.g. axes, polearms, or maces), a description of the haft.  
Explosive weapon specification parameters (only available if **is_explosive** or **is_missile** is set to "*yes*"):
- **filling** &ndash; *optional* &ndash; the explosive filling material or warhead.
- **filling_weight** &ndash; *optional* &ndash; the weight of the explosive material or warhead.
- **detonation** &ndash; *optional* &ndash; the detonation trigger type (e.g. "timer", "pressure", "motion sensor").
- **yield** &ndash; *optional* &ndash; for larger explosives, the yield (in tons of TNT) of the device.  
Vehicle/missile specification parameters (most only available if **is_vehicle** is set to "*yes*"; some are also activated if **is_missile** is set to "*yes*"):
- **armour** &ndash; *optional* &ndash; the armour plating of the vehicle; different armour thickness at different points may be indicated if needed.
- **primary_weapon** &ndash; *optional* &ndash; the primary armament mounted on the vehicle, if any.
- **secondary_weapon** &ndash; *optional* &ndash; the secondary armament mounted on the vehicle, if any.
- **engine** &ndash; *optional* &ndash; the type of engine used by the vehicle or missile.
- **engine_power** &ndash; *optional* &ndash; the power output of the engine, usually in hp or kW.
- **pw_ratio** &ndash; *optional* &ndash; the power-to-weight ratio, usually in hp/tonne.
- **transmission** &ndash; *optional* &ndash; the type of transmission used by the vehicle.
- **payload_capacity** &ndash; *optional* &ndash; the overall payload capacity weight of the vehicle.
- **propellant** &ndash; *optional* &ndash; for missiles, the propellant used.
- **fuel_capacity** &ndash; *optional* &ndash; the fuel capacity of the vehicle.
- **suspension** &ndash; *optional* &ndash; the suspension of the vehicle.
- **clearance** &ndash; *optional* &ndash; the ground clearance of the vehicle.
- **wingspan** &ndash; *optional* &ndash; for missiles, the wingspan.
- **vehicle_range** &ndash; *optional* &ndash; the operational range of the vehicle or missile.
- **ceiling** &ndash; *optional* &ndash; for missiles, the flight ceiling.
- **altitude** &ndash; *optional* &ndash; for missiles, the normal flight altitude.
- **depth** &ndash; *optional* &ndash; for underwater weapons such as torpedoes, the maximum operating depth.
- **boost** &ndash; *optional* &ndash; for missiles, the maximum boost time.
- **speed** &ndash; *optional* &ndash; the maximum speed of the vehicle or missile; this is usually the road speed, but other values may be indicated if appropriate.
- **guidance** &ndash; *optional* &ndash; the guidance system used by the missile (or the vehicle, if unmanned).
- **steering** &ndash; *optional* &ndash; the steering system used by the missile or vehicle.
- **accuracy** &ndash; *optional* &ndash; for missiles, the guidance accuracy.
- **launch_platform** &ndash; *optional* &ndash; for missiles, the launch platform.
- **transport** &ndash; *optional* &ndash; for missiles, the transportation vehicle or method, if different from the launch platform.