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Sunday, January 8th 2006, 6:48pm

German Target ship

Conversion of pre-Dreadnought Hannover to a target. Armament removed, barbettes plated over, and engines replaced with a turbine set that can be remotely controlled.


Zahringen (ex-Hannover), German Target ship laid down 1904 (Engine 1929)

Displacement:
13,354 t light; 13,632 t standard; 13,875 t normal; 14,070 t full load

Dimensions: Length overall / water x beam x draught
413.06 ft / 413.06 ft x 72.83 ft x 26.90 ft (normal load)
125.90 m / 125.90 m x 22.20 m x 8.20 m

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 9.45" / 240 mm 268.50 ft / 81.84 m 10.24 ft / 3.12 m
Ends: 3.94" / 100 mm 144.55 ft / 44.06 m 10.24 ft / 3.12 m
Upper: 7.87" / 200 mm 268.50 ft / 81.84 m 10.24 ft / 3.12 m
Main Belt covers 100 % of normal length

- Armour deck: 3.94" / 100 mm, Conning tower: 11.81" / 300 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 20,278 shp / 15,127 Kw = 20.00 kts
Range 3,000nm at 10.00 kts
Bunker at max displacement = 438 tons

Complement:
638 - 830

Cost:
£0.555 million / $2.218 million

Distribution of weights at normal displacement:
Armament: 0 tons, 0.0 %
Armour: 4,078 tons, 29.4 %
- Belts: 2,328 tons, 16.8 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 0 tons, 0.0 %
- Armour Deck: 1,603 tons, 11.6 %
- Conning Tower: 147 tons, 1.1 %
Machinery: 623 tons, 4.5 %
Hull, fittings & equipment: 8,654 tons, 62.4 %
Fuel, ammunition & stores: 521 tons, 3.8 %
Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
96,681 lbs / 43,854 Kg = 895.2 x 6 " / 152 mm shells or 15.9 torpedoes
Stability (Unstable if below 1.00): 1.30
Metacentric height 5.0 ft / 1.5 m
Roll period: 13.7 seconds
Steadiness - As gun platform (Average = 50 %): 31 %
- Recoil effect (Restricted arc if above 1.00): 0.00
Seaboat quality (Average = 1.00): 1.09

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.600
Length to Beam Ratio: 5.67 : 1
'Natural speed' for length: 20.32 kts
Power going to wave formation at top speed: 52 %
Trim (Max stability = 0, Max steadiness = 100): 18
Bow angle (Positive = bow angles forward): -10.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 22.34 ft / 6.81 m
- Forecastle (20 %): 22.34 ft / 6.81 m
- Mid (50 %): 22.34 ft / 6.81 m
- Quarterdeck (15 %): 22.34 ft / 6.81 m
- Stern: 22.34 ft / 6.81 m
- Average freeboard: 22.34 ft / 6.81 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 16.5 %
- Above water (accommodation/working, high = better): 146.8 %
Waterplane Area: 22,004 Square feet or 2,044 Square metres
Displacement factor (Displacement / loading): 261 %
Structure weight / hull surface area: 250 lbs/sq ft or 1,223 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 2.45
- Longitudinal: 7.20
- Overall: 2.73
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is excellent