Engine room of a German U Boat c 1915 History World War I War at sea View of the engine room of a German U Boat Photo c 1915 Stock Photo - Alamy
U boat, engine room, lines, pipes, valves - free image from needpix.com
CMK 129-N72003 - u Boat Type VII C Engine Room - New | eBay
Uboats in the RCN: On the Inside
Patrick Chovanec on Twitter: "The u-boat normally ran on the surface using its diesel engines (which needed oxygen and an exhaust outlet), reaching a much faster top speed of nearly 18 knots.
MAN F6V35 World War 1 U-boat diesel engine load run - YouTube
WW2 German, Soviet, Allied militaria, uniforms, awards, weapons history. War relics forum
U-boat engine room Photograph by David Bracher - Fine Art America
U-Boat stock image. Image of german, room, submarine - 53086181