| Name | No | Yard No | Builder | Laid down | Launched | Comp | Fate |
| Plongeur | Arsenal de Marinha de Lisboa | 1892 | 1892 | discarded 1910 |
|
Displacement standard, t |
|
|
Displacement normal, t |
/ 100 |
|
Length, m |
22.0 |
|
Breadth, m |
3.50 |
|
Draught, m |
|
|
No of shafts |
2 |
|
Machinery |
2 electric motors |
|
Power, h. p. |
|
|
Max speed, kts |
/ 6 |
|
Fuel, t |
battery only |
| Endurance, nm(kts) | |
|
Armament |
4 - 356 Nordenfelt TC |
|
Complement |
6 |
| Diving depth operational, m |
Project history: This boat was designed by Fontes Pereiro de Mello, and was cylindrical in shape, ending forward in a cone. She dived and surfaced by use of ballast tanks and horizontal rudders; the motors were powered by accumulators.
Modernizations: None.
Naval service: No significant events.
© Ivan Gogin, 2014