Hyperwave Inertia Momentum Sustainer
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- See also: Interdictor Star Destroyer
The Hyperwave Inertia Momentum Sustainer is a fictional device in the Star Wars Universe. It was invented by the planet of Bakura to be mounted on their Home Fleet's Star Destroyers. Its whole purpose was to allow a starhip to continue travelling in hyperspace even when crossing an interdiction field. An interdiction field is a gravitic field emitted by a device known as a gravity well generator that essentially causes a buldge in the spacetime continuum. This does not effect realspace objects visibly, but its effects are greatly amplified in the alternate dimension of hyperspace. When a quartet of gravity well generators are activated, they will interdict all hyperspace travel in the system that they are in.
These starships are known as Interdictor Star Destroyers. They can be used to prevent enemy fleets from arriving at their destination, or halt convoys in the middle of hyperspace transit to board them for their goods.
The Hyperwave Inertia Momentum Sustainer was developed as the perfect counter for the interdiction field. A starship with an H.I.M.S. will pass through an interdiction field unaffected while in hyperspace. This has great applications, but these unique devices are very rare, and are extremely difficult to construct.
The physics behind their operation is that they have a gravity sensor that can sense a gravitic field (i.e.:interdiction field) before the gravity well is large enough to rip the starship from hyperspace and into realspace. Then, the H.I.M.S. created a static hyperspace bubble that nullified the effects of gravity on the starship's hyperdrive. This stopped the forward movement through hyperspace from the hyperdrive, but the starship's momentum carried it forward.
These were used as a counter against dovin basals in the Yuuzhan Vong war. A dovin basal is an organic device created by the Yuuzhan Vong that creates a mini-black hole that sucks in enemy lasers, missiles, and even small fighters or gunships. In the Retaking of Coruscant, the Galactic Alliance had a trio of troopships mounted with H.I.M.S. devices to allow them to breach the Yuuzhan Vong dovin basal line. Two were able to make it through the singularities unharmed, but the third H.I.M.S. failed, and that troopship was sucked literally into oblivion.
