3D Printed in Grey and Black
59 x 5.21 x 7.01mm
The UD-1 was a secret submarine project in 1918. Work started in Feb 1918 when "War contract AA" was awarded to KW Kiel for a U Cruiser of this type. In May work started in the mould-loft and work shops in great secrecy. But the keel was not laid down yet at the end of the war.
All Approx:
length overall 125m.
Max beam 10.5m.
draught 6m
displacement surfaced 3,800t
propulsion surfaced 4: 6,000 hp steam turbines, 2 450 hp diesel generators
propulsion submerged 2: 1,900 hp SSW electric motors
speed surfaced 25knots
speed submerged 9.5 knots
armament: six torpedo tubes [four submerged bow, two submerged stern]
three or four 15cm U-Boat guns
crew: 104
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