It took about 13 hours to operate the "Spero", which, at the service of Portline, was the Ship of the Week no. 49 at TCL, in which were handled 1,351 TEU.

The cargo handling operations began at 7:30 p.m. on 2 December and were completed at 6:15 p.m. on the following day. In this case with no recourse to night work.

For every hour of effective work were done 86 moves!