V170 returns to 105 mm guns but still lacks weight of fire

V170 offered a more sensible late-war answer than the overgunned S113s, but still fell short of a decisive solution. The boats returned to four 105 mm guns and six torpedoes on a hull described as only somewhat larger than B97, with good gun arcs and a stable, usable design. Designed in 1917 and built from 1918, none entered German service in time to influence the war. The reference book's handling entry appears to contain crew and boat-complement details instead, so the favorable handling assessment is supplied separately in the discussion. Weight of fire remained the weakness: an outnumbered German screen needed to disable its British opposite numbers quickly, and four guns still did not provide the desired advantage. Twin mounts in at least some gun positions are proposed as a way to increase shell output. Another option was to stretch the battlefield until the British force became divided, but that depended on operational luck and could not be built into a ship. Torpedoes could threaten cruisers and capital ships only after the destroyers in front had been defeated or suppressed. V170 closes the design sequence with a technically sound late-war design whose weapons fit still did not fully address Germany's operational problem.