Swedish Scout cruiser, built 1910 and of modified design 1915. Primary for protecting the lanes of communication and escort convoys around the emipre.

**Gripsholm**, *(Kungsholm, Drottningholm, Stockholm*

Älvsborg, Visborg, Sveaborg, Olofsborg, Viborg)

Sweden Protected cruiser laid down 1910

Displacement:

2 116 t light; 2 208 t standard; 2 402 t normal; 2 558 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)

(400,26 ft / 393,70 ft) x 32,81 ft x (13,12 / 13,76 ft)

(122,00 m / 120,00 m) x 10,00 m x (4,00 / 4,19 m)

Armament:

10 - 4,13" / 105 mm 45,0 cal guns - 35,62lbs / 16,16kg shells, 200 per gun

Quick firing guns in deck and hoist mounts, 1910 Model

8 x Single mounts on sides, evenly spread

2 x Single mounts on centreline ends, evenly spread

2 raised mounts

8 - 2,24" / 57,0 mm 45,0 cal guns - 5,70lbs / 2,59kg shells, 150 per gun

Quick firing guns in deck and hoist mounts, 1910 Model

8 x Single mounts on sides, evenly spread

8 raised mounts

Weight of broadside 402 lbs / 182 kg

Main Torpedoes

2 - 18,9" / 480 mm, 19,69 ft / 6,00 m torpedoes - 1,023 t each, 2,046 t total

In 2 sets of deck mounted centre rotating tubes

Armour:

- Belts: Width (max) Length (avg) Height (avg)

Main: 0,79" / 20 mm 223,92 ft / 68,25 m 6,89 ft / 2,10 m

Ends: 0,20" / 5 mm 120,54 ft / 36,74 m 6,89 ft / 2,10 m

49,25 ft / 15,01 m Unarmoured ends

Upper: 0,20" / 5 mm 223,92 ft / 68,25 m 8,01 ft / 2,44 m

Main Belt covers 88 % of normal length

Main belt does not fully cover magazines and engineering spaces

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)

Main: 0,39" / 10 mm - 0,39" / 10 mm

- Protected deck - single deck:

For and Aft decks: 1,38" / 35 mm

Forecastle: 0,79" / 20 mm Quarter deck: 0,79" / 20 mm

- Conning towers: Forward 3,94" / 100 mm, Aft 3,94" / 100 mm

Machinery:

Coal and oil fired boilers, steam turbines,

Direct drive, 3 shafts, 16 156 shp / 12 053 Kw = 25,50 kts

Range 2 700nm at 12,00 kts

Bunker at max displacement = 350 tons (75% coal)

Complement:

171 - 223

Cost:

£0,214 million / $0,854 million

Distribution of weights at normal displacement:

Armament: 116 tons, 4,8 %

- Guns: 112 tons, 4,7 %

- Weapons: 4 tons, 0,2 %

Armour: 313 tons, 13,0 %

- Belts: 70 tons, 2,9 %

- Armament: 10 tons, 0,4 %

- Armour Deck: 203 tons, 8,4 %

- Conning Towers: 30 tons, 1,3 %

Machinery: 716 tons, 29,8 %

Hull, fittings & equipment: 970 tons, 40,4 %

Fuel, ammunition & stores: 286 tons, 11,9 %

Miscellaneous weights: 0 tons, 0,0 %

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship):

2 578 lbs / 1 170 Kg = 73,0 x 4,1 " / 105 mm shells or 0,9 torpedoes

Stability (Unstable if below 1.00): 1,16

Metacentric height 1,2 ft / 0,4 m

Roll period: 12,3 seconds

Steadiness - As gun platform (Average = 50 %): 43 %

- Recoil effect (Restricted arc if above 1.00): 0,75

Seaboat quality (Average = 1.00): 1,65

Hull form characteristics:

Hull has rise forward of midbreak,

a normal bow and a cruiser stern

Block coefficient (normal/deep): 0,496 / 0,504

Length to Beam Ratio: 12,00 : 1

'Natural speed' for length: 19,84 kts

Power going to wave formation at top speed: 51 %

Trim (Max stability = 0, Max steadiness = 100): 22

Bow angle (Positive = bow angles forward): -5,00 degrees

Stern overhang: 6,56 ft / 2,00 m

Freeboard (% = length of deck as a percentage of waterline length):

Fore end, Aft end

- Forecastle: 20,00 %, 22,97 ft / 7,00 m, 19,69 ft / 6,00 m

- Forward deck: 40,00 %, 19,69 ft / 6,00 m, 16,40 ft / 5,00 m

- Aft deck: 25,00 %, 9,84 ft / 3,00 m, 9,84 ft / 3,00 m

- Quarter deck: 15,00 %, 9,84 ft / 3,00 m, 9,84 ft / 3,00 m

- Average freeboard: 15,35 ft / 4,68 m

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 112,5 %

- Above water (accommodation/working, high = better): 120,7 %

Waterplane Area: 8 575 Square feet or 797 Square metres

Displacement factor (Displacement / loading): 113 %

Structure weight / hull surface area: 57 lbs/sq ft or 278 Kg/sq metre

Hull strength (Relative):

- Cross-sectional: 0,90

- Longitudinal: 2,64

- Overall: 1,00

Cramped machinery, storage, compartmentation space

Excellent accommodation and workspace room

Excellent seaboat, comfortable, can fire her guns in the heaviest weather

**Gävle**, (*Kalmar, Sundsvall, Visby, Helsingborg, Helsingfors, Vasa, Nådendal, Wismar*)

Sweden Protected cruiser laid down 1915

Displacement:

2 157 t light; 2 261 t standard; 2 402 t normal; 2 515 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)

(400,26 ft / 393,70 ft) x 32,81 ft x (13,12 / 13,58 ft)

(122,00 m / 120,00 m) x 10,00 m x (4,00 / 4,14 m)

Armament:

4 - 5,98" / 152 mm 45,0 cal guns - 108,07lbs / 49,02kg shells, 150 per gun

Quick firing guns in deck and hoist mounts, 1912 Model

2 x Twin mounts on centreline ends, evenly spread

6 - 4,13" / 105 mm 45,0 cal guns - 35,62lbs / 16,16kg shells, 150 per gun

Quick firing guns in deck and hoist mounts, 1915 Model

6 x Single mounts on sides, evenly spread

2 raised mounts

4 - 2,24" / 57,0 mm 45,0 cal guns - 5,70lbs / 2,59kg shells, 150 per gun

Anti-air guns in deck mounts, 1915 Model

4 x Single mounts on sides, evenly spread

4 raised mounts

Weight of broadside 669 lbs / 303 kg

Main Torpedoes

2 - 18,9" / 480 mm, 19,69 ft / 6,00 m torpedoes - 1,043 t each, 2,086 t total

In 2 sets of deck mounted side rotating tubes

Armour:

- Belts: Width (max) Length (avg) Height (avg)

Main: 0,79" / 20 mm 223,92 ft / 68,25 m 6,89 ft / 2,10 m

Ends: 0,20" / 5 mm 120,54 ft / 36,74 m 6,89 ft / 2,10 m

49,25 ft / 15,01 m Unarmoured ends

Upper: 0,20" / 5 mm 223,92 ft / 68,25 m 8,01 ft / 2,44 m

Main Belt covers 88 % of normal length

Main belt does not fully cover magazines and engineering spaces

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)

Main: 0,98" / 25 mm 0,39" / 10 mm 0,39" / 10 mm

2nd: 0,39" / 10 mm - -

- Protected deck - single deck:

For and Aft decks: 1,38" / 35 mm

Forecastle: 0,79" / 20 mm Quarter deck: 0,79" / 20 mm

- Conning towers: Forward 3,94" / 100 mm, Aft 3,94" / 100 mm

Machinery:

Coal and oil fired boilers, steam turbines,

Geared drive, 3 shafts, 14 947 shp / 11 150 Kw = 25,00 kts

Range 2 600nm at 12,00 kts

Bunker at max displacement = 254 tons (50% coal)

Complement:

171 - 223

Cost:

£0,322 million / $1,287 million

Distribution of weights at normal displacement:

Armament: 160 tons, 6,7 %

- Guns: 156 tons, 6,5 %

- Weapons: 4 tons, 0,2 %

Armour: 317 tons, 13,2 %

- Belts: 70 tons, 2,9 %

- Armament: 13 tons, 0,5 %

- Armour Deck: 203 tons, 8,4 %

- Conning Towers: 30 tons, 1,3 %

Machinery: 593 tons, 24,7 %

Hull, fittings & equipment: 1 088 tons, 45,3 %

Fuel, ammunition & stores: 245 tons, 10,2 %

Miscellaneous weights: 0 tons, 0,0 %

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship):

2 880 lbs / 1 306 Kg = 26,9 x 6,0 " / 152 mm shells or 0,9 torpedoes

Stability (Unstable if below 1.00): 1,09

Metacentric height 1,1 ft / 0,3 m

Roll period: 13,1 seconds

Steadiness - As gun platform (Average = 50 %): 43 %

- Recoil effect (Restricted arc if above 1.00): 1,23

Seaboat quality (Average = 1.00): 1,68

Hull form characteristics:

Hull has rise forward of midbreak,

a normal bow and a cruiser stern

Block coefficient (normal/deep): 0,496 / 0,502

Length to Beam Ratio: 12,00 : 1

'Natural speed' for length: 19,84 kts

Power going to wave formation at top speed: 50 %

Trim (Max stability = 0, Max steadiness = 100): 22

Bow angle (Positive = bow angles forward): -5,00 degrees

Stern overhang: 6,56 ft / 2,00 m

Freeboard (% = length of deck as a percentage of waterline length):

Fore end, Aft end

- Forecastle: 20,00 %, 22,97 ft / 7,00 m, 19,69 ft / 6,00 m

- Forward deck: 40,00 %, 19,69 ft / 6,00 m, 16,40 ft / 5,00 m

- Aft deck: 25,00 %, 9,84 ft / 3,00 m, 9,84 ft / 3,00 m

- Quarter deck: 15,00 %, 9,84 ft / 3,00 m, 9,84 ft / 3,00 m

- Average freeboard: 15,35 ft / 4,68 m

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 104,5 %

- Above water (accommodation/working, high = better): 136,9 %

Waterplane Area: 8 575 Square feet or 797 Square metres

Displacement factor (Displacement / loading): 114 %

Structure weight / hull surface area: 64 lbs/sq ft or 314 Kg/sq metre

Hull strength (Relative):

- Cross-sectional: 0,88

- Longitudinal: 2,94

- Overall: 1,00

Adequate machinery, storage, compartmentation space

Excellent accommodation and workspace room

Excellent seaboat, comfortable, can fire her guns in the heaviest weather