0:18:08 > 0:18:09A century ago,
0:18:09 > 0:18:12this was the equivalent of a modern calculator.
0:18:12 > 0:18:14This was my grandfather,
0:18:14 > 0:18:17Arty Frost's slide rule.
0:18:17 > 0:18:21He was in charge of putting the engines into the Titanic.
0:18:21 > 0:18:25He was also a member of the Titanic Guarantee Group,
0:18:25 > 0:18:27employees of Harland and Wolff's
0:18:27 > 0:18:29from the various different departments,
0:18:29 > 0:18:32who were sent along with the ship on its maiden voyage.
0:18:33 > 0:18:36He was last seen on his way down to the engine room.
0:18:36 > 0:18:38That's where the ship parted
0:18:38 > 0:18:40and the waters would have got in.
0:18:40 > 0:18:44At the end he may have been helping in keeping the engines going
0:18:44 > 0:18:47to feed the power to the dynamos
0:18:47 > 0:18:50so that there would still be electric light for everybody.
0:18:50 > 0:18:53I think he was a brave man.
0:18:53 > 0:18:55I just hope that when the end came, it was quick.
0:18:57 > 0:18:59Subtitles by Red Bee Media Ltd