User blog:Fireblade15/Vehicle Histories

Seaglide Personal Underwater Propulsion System (PUPS)
This technology is nothing new. Personal underwater propulsion devices have been around since the 20th century and have both civilian and military applications. They provide a fast and reliable means of transport for the exploration of underwater cave systems and the location of potential mining sites. However, these systems have come a long way since the early days of powered personal underwater transport when such devices were large, heavy and slow; today's personal underwater propulsion systems are much smaller, lighter and faster.

Conception
During the period of humanity's expansion into the greater galaxy and the subsequent rivalries between Earth-based paramilitary forces and independent colonial corporations, there was some concern among naval personnel that special operations teams would be limited by proven but ancient technology that hadn't changed much over the past three hundred years. If they were to be effective and efficient, each soldier needed their own PUPS unit in the event that the entire team couldn't leave the designated area of operation.

So the call went out for a machine that would be fast enough to allow for quick movement but small and light enough to be carried by an individual fighter and worn like a backpack. Every prominent manufacturer answered the call, but only the maritime megacorporation Hydrophonics Incorporated brought its financial might and technological prowess to bear on the project.

Development
The company immediately set to developing a smaller, faster, more hydrodynamic means of personal underater propulsion. The first prototypes mimicked cephalopods, shaped like oblong ovals and using directional water jets as a means of propulsion; except for the shape, these ultimately proved unsuccessful because the mechanism to control the jets' vector was unreliable. The electromagnetic engine was prone to unexpected surges of power that produced too much pressure for the jets to handle, rupturing the lines and dislodging the nozzles. This made the machine uncontrollable and dangerous to use, and sometimes blaster the used with high-pressure streams strong enough to break skin, tear muscle tissue and erode bone.