NRP Hidra

1917 attack submarine of the Portuguese Navy. 
H

OverviewRelatedTableS1S2S3

Wikidata
1917 — 1935 attack submarine, Foca (Portugal)-class submarine, Italy, Portugal, Portuguese Navy, length: 45.6 metre, beam: 4.2 metre, draft: 3.04 metre, 

• Google Knowledge entry^@
  

Foca (Portugal)-class submarine – Portuguese Navy – 

Type	Date	Description	Keywords	Notes	Source
link		Google Knowledge entry@			Wikidata

Individual site searches

Google custom search of specialist sites

Google custom search of general sites