Vesper Class Underwater Craft

Vesper class assault craft are the mainstay of offensive capabilities in the Leviathan Defense Unit.  Inspired by the anatomy of angel fish, these sleek agile craft can be configured in both one-pilot or two-pilot formats, depending on the mission.  Each Vesper is armed with a compliment of tungsten rod projectile missiles and dynamic liquid oxygen depth charges.  Maximum speed is over 60 knots underwater.

Unlike the heavy duty Zephyr class vessels that are constructed from pressure resistant terramite, Vesper class vessels utilize Projective Irradiation Fields to deal with the extreme undersea pressures of the hadopelagic zone that can reach over 16,000 pounds per square inch.  The field generator is far lighter than a terramite armor allowing the Vespers to excel at missions requiring speed and agility.  Because their energy needs are so great, the operational range of Vesper ships is limited at approximately 5 hours at cruising speed (although this can be extended through use of a modified Zephyr class vessel for re-fueling).  Failure to recharge before the energy reserve is depleted will cause the Irradiation Field to collapse exposing the Vesper to the deadly deep sea environment, thus destroying the craft.