all of this made it possible to guarantee high comprehensive reliability indicators in the specifications on the submarine `` komsomolets '' ; the high comprehensive indicators of the reliability of the systems , equipment and the ship as a whole were confirmed by bench tests on experimental models of new equipment , which included testing for failure-free operation of this equipment throughout the entire time of continuous operation established by the specifications , and experimental operation of the submarine on the basis of a special program , to include a fully independent cruise .