EntityQ5634904· pop 5· linked from 15 articlesHMS WalrusSign in to save1959 Porpoise-class attack submarineConnectionsPorpoise-class attack submarineEntityInternational Standard Book NumberEntityKielEntitysubmarineEntityOCLC, Inc.EntityRoyal NavyEntityGreenockEntityGrimsbyEntityEnglish ElectricEntitySpitheadEntityHMS Ark RoyalEntityOberon-class submarineEntityMark 24 TigerfishEntityJohn Fieldhouse, Baron FieldhouseEntityfleet reviewEntitylist of submarines of the Royal NavyEntityScotts Shipbuilding and Engineering CompanyEntityJ. J. ColledgeEntitylist of submarine classes of the Royal NavyEntityHMS SealionEntityCategories1959 shipsBritish Porpoise-class submarinesShips built on the River Clyde