This subject is placed between the specific of the intensification in naval technology, offered exclusively to students of the General Body of the Armed, whose aim is to contribute skills or specific skills to exert the destination of Official of Inner Security (*S.I.). It understands by *S.I. The group of processes, disposals, technical and material means and humans, allocated to warn, reduce and correct the effects that, on a fuselage or his endowment, derive of accidents or actions enemies.
The subject has like aim, in the first place, achieve that the students know and comprise all the related with the stability of the fuselage (hydrostatic and intact stability and in failures), as well as the basic concepts related with the hydrodynamic naval (resistance to the advance and his implications) and the behaviour of the fuselage in the sea by the interaction with external factors like waves, wind or currents.
Second, the subject will allow that the students purchase sufficient knowledge on the appearances of the naval construction related with the structural elements of the fuselage, his purpose, behaviour, forms of failure and his implications when these produce .
This knowledge will allow to the official futures assume functions related with the survival on board of fuselages of surface and submarines. Of this form, the students graduates will be able to have the smart units for the fight, sustain them in the same and make the temporary repairs, back to the fight, necessary to keep the fuselage to the highest operative level.