It was the country's third participation in the Paralympics, and it sent a significantly larger delegation than for the previous Games.
He was second fastest in the heats, in 26.3s, and advanced to the final, which he swam in 26.4s - just ahead of the Netherlands' Gerrit Pomp (26.8s).
He finished third overall in the heats, in 26.4s, and advanced to the final, where a slower time of 27.4s was just enough to see off Ellis (27.9s) for bronze.
[2] Although Liuska competed only in swimming, Launonen also entered events in athletics and table tennis.
In table tennis (1A), he entered the men's singles, and was eliminated 0:2 by Hans Rosenast of Switzerland in the first round.