Fer-Tortuga Mobile EntrenchmentPowered by a Beast class Medium Soul Engine, the Fer-Tortuga is a slower, heavier, and larger answer to the rumors of Sordian mechs outpacing our own. Wehl is not a land of small people, or small ambitions.
A Fer-Tortuga is a mobile hexagonal bunker carried on six squat legs, with rectangular firing slits across the front three faces. the basic hull of a Fer-Tortuga is a 7x7.5 meter metal platform with an overhead girder and rebar skeleton anchored at a centerpost and a raised housing at the rear for the Beast class engine running everything. Concrete slabs are cast arount this skeleton to form the tough outer shell with a minimum thickness of 8cm for the front and 4cm for the roof and rear sections.
Each Fer-Tortuga is armed with either three cannon and gunnery crew to operate them, or a single cannon and an infantry detachment plus supplies. In either case, the Fer-Tortuga is expected to be self-contained and carry its own ammunition and able to hold a position until resupply, with even a heavily damaged mech 'retiring' its engine by venting the soul out the rear end and becoming a stationary emplacement for as long as most of the superstructure is intact.