the `` consequences '' formulated by the authors of the remark are deliberately misleading : the personnel of the `` komsomolets '' made no attempts during the accident to blow the main ballast tanks with air from cofferdam no. 2 of the high-pressure air system through the outside air main because of their poor knowledge of the ship 's material ; main ballast tanks can be blown with outboard air from high- pressure air cofferdam no. 2 by way of a special main connecting the no. 1 and 2 high-pressure air cofferdams .