Matches in DBpedia 2016-04 for { ?s ?p "Peral was the first electric battery-powered submarine, built by the Spanish engineer and sailor Isaac Peral for the Spanish Navy. The first fully capable military submarine, she was launched 8 September 1888. She had one torpedo tube (and two torpedoes) and an air regeneration system. Her hull shape, propeller, and cruciform external controls anticipated later designs. Her underwater speed was 3 kn (5.6 km/h; 3.5 mph)."@en }
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- Peral_Submarine comment "Peral was the first electric battery-powered submarine, built by the Spanish engineer and sailor Isaac Peral for the Spanish Navy. The first fully capable military submarine, she was launched 8 September 1888. She had one torpedo tube (and two torpedoes) and an air regeneration system. Her hull shape, propeller, and cruciform external controls anticipated later designs. Her underwater speed was 3 kn (5.6 km/h; 3.5 mph).".
- Q2344269 comment "Peral was the first electric battery-powered submarine, built by the Spanish engineer and sailor Isaac Peral for the Spanish Navy. The first fully capable military submarine, she was launched 8 September 1888. She had one torpedo tube (and two torpedoes) and an air regeneration system. Her hull shape, propeller, and cruciform external controls anticipated later designs. Her underwater speed was 3 kn (5.6 km/h; 3.5 mph).".