An item reported that at Venice, Italy a new kind of submarine was tested especially for the navy designed by dr. Robiola.(1) She was such small that she could easily be carried by big ships. One men was enough to control her. By turning some sloping metal plates in the outer hull could she dive. It was possible to carry one torpedo fastened to the keel unlocked with releasing one pawl.
Note
1. Identical to Attillio Robiola who invented in those years aircraft?
Note
1. Identical to Attillio Robiola who invented in those years aircraft?
