| Main Armament: |
Twelve 28 cm quick firing guns of 45 caliber length, distributed in six
double-gun turrets (one each fore and aft, two amidships port and starboard)
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Secondary and
Tertiary Armaments: |
Twelve 15 cm quick firing guns of 45 caliber length casemate mounted.
Increased to sixteen in 1915, reduced to fourteen in 1916/1917. In 1915 two
88 mm single mount anti-aircraft guns installed. Six 45 cm torpedo tubes,
one each bow and stern, two each side.
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| Armor: |
Armoured bulkheads: 200mm...Side armour: stern 90mm, amidships 300mm, bow
80mm...Citadel armour: stern 120, amidships 170mm, bow 70mm...Armoured deck:
50mm with inclines up to 80mm...Heavy gun turrets: front 280mm, top 90mm...
Secondary armament: 160mm casemates...Conning tower: front 280. Watertight
compartments: Nassau, 16; all others, 19.
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| Machinery: |
Twelve naval boilers feeding three, three cylinder, triple expansion
reciprocating engines. Auxil. oil firing added at the end of 1915, 157 tons
of oil normal reserves. Three propellers, two parallel rudders. Output of
22,000 i.h.p. at 19.5 knots. Trial results: NASSAU 20.0 kn/26,244 ihp;
WESTFALEN 20.2 kn./26,792 ihp; RHEINLAND 20.0 kn./27,498 ihp; POSEN 20.0
kn./28,117 ihp. |
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