Ultrasonic Destabilisers aka “Glob Guns”

UDs and LRUDs (Long Range Ultrasonic Destabilisers) are a combination of sonic and physical weaponry. They fire a globule of highly compressed gas and sound that is held together with a field not unlike that used in the P3.  On hitting a solid target the field breaks down releasing a two-fold attack: a blastwave of compressed gas along with a shockwave of ultrasound.

Whilst touted as a form of non-lethal weapon both the blastwave and the ultrasound shockwave can be lethal though usually the target is just severely stunned and thrown from its feet. Depending on the actual weapon being fired (there are many varieties of UD weapons) the force can be enough to lift an adult armoured figure off its feet, to throwing them back a number of meters.  Many UD weapons utilise 2 or more “barrels” which fire in a rapid stagger. This has the effect of multiple rapid ‘punches’ to the target that disorientates it, unbalances it and knocks it down often leaving it stunned and senseless (or in extreme cases dead).

Ultrasound effects include extreme nausea, dizziness, vertigo, internal bleeding and disorientation.

UD weapon ranges are fairly short range although longer rifles (LRUD) are now entering production – they all retain though the two main disadvantages to this type of weapon though:

1)      The ‘globule’ does not always ‘explode’ on impact and can bounce off the target with no effect at all. Some troops use this to their advantage by “bouncing” UD shots around corners by firing them at a shallow angle to the wall, floor or ceiling surface

2)      They require an atmosphere to work within.

UD weapons are very common amongst space enforcement agencies, as, like the P3, the globules cannot cause damage to sensitive shields, bulkheads and so forth. Also like the P3 the globules are highly visible leaving a distortion field in their path.

Short-range UDs are relatively low TQ weapons and despite their disadvantages in many military combat situations their low-TQ upkeep and maintenance means that they are a common weapon amongst low-TQ military forces. They are commonly referred to as “Glob-guns”.

PEA-Versions:
The Peace Enforcement Agency has a different version of the UD Rifle and UD Pistols which are twinned with a high-power laser-rifle to give the Trooper anti-personal and marginal light-armour capabilities also.

The Laser-Rifle is a heavy hitting weapon designed as an infantry longarm to emit high energy beams for light anti-armor and anti-personnel roles, although it is also popular with sportsmen hunting large game. The beam energy is 10 kJ per shot, made up of 50 pulses of 200 J each, spaced 10 microsecond apart. This puts each pulse in the range of a big firecracker. The total beam energy is about the same as a .460 Weatherby magnum bullet – a bullet for the Weatherby elephant gun and the most powerful sporting cartridge in existence in the 20th century.

It can sustain a rate of fire of up to 2 full energy pulses per second, or safely handle overheating by up to 8 full energy shots. It has a mass of 4.5 kg and a 6 cm primary aperture. The beam causes full damage out to about 350 meters. It is commonly powered by a 1.7 kg high capacity power pack, with enough energy for 100 full energy shots and enough power to supply 2 full energy shots per second, although the laser can be hooked to a power backpack via a power cable to allow higher rates of fire and ammunition capacity.

The weapons all have chip-mounted laser or acoustic gyro sets, making them gyro-stabilized. The weapon then shoots not at where the gun is pointed at the instant of firing, but at a weighted average of where it has been pointing over the past quarter of a second or so. This smoothes out a lot of the jitter inherent in human marksmanship.