WesWorld

A tender ment to serve as depotship on remonte locations in the pacific and africa for aircraft, submarines, patrolboats etc.



Älvsnabben, Sweden Colonial tender laid down 1928

Displacement:
15 830 t light; 16 182 t standard; 17 190 t normal; 17 997 t full load

Dimensions: Length overall / water x beam x draught
501,97 ft / 492,13 ft x 85,30 ft (Bulges 98,43 ft) x 19,69 ft (normal load)
153,00 m / 150,00 m x 26,00 m (Bulges 30,00 m) x 6,00 m

Armament:
8 - 2,24" / 57,0 mm guns (4x2 guns), 5,65lbs / 2,56kg shells, 1928 Model
Quick firing guns in deck mounts with hoists
on side ends, evenly spread, all raised mounts - superfiring
16 - 0,98" / 25,0 mm guns (8x2 guns), 0,48lbs / 0,22kg shells, 1928 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, 6 raised mounts
Weight of broadside 53 lbs / 24 kg
Shells per gun, main battery: 250

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 0,98" / 25 mm 319,88 ft / 97,50 m 11,09 ft / 3,38 m
Ends: 0,39" / 10 mm 172,21 ft / 52,49 m 11,09 ft / 3,38 m
Upper: 0,39" / 10 mm 319,88 ft / 97,50 m 8,01 ft / 2,44 m
Main Belt covers 100 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0,20" / 5 mm - 0,39" / 10 mm
2nd: 0,20" / 5 mm - -

- Conning tower: 1,97" / 50 mm

Machinery:
Coal and oil fired boilers, steam turbines,
Direct drive, 2 shafts, 33 813 shp / 25 224 Kw = 22,00 kts
Range 11 000nm at 10,00 kts
Bunker at max displacement = 1 815 tons (50% coal)

Complement:
749 - 975

Cost:
£2,726 million / $10,904 million

Distribution of weights at normal displacement:
Armament: 7 tons, 0,0 %
Armour: 258 tons, 1,5 %
- Belts: 228 tons, 1,3 %
- Torpedo bulkhead: 0 tons, 0,0 %
- Armament: 2 tons, 0,0 %
- Armour Deck: 0 tons, 0,0 %
- Conning Tower: 28 tons, 0,2 %
Machinery: 1 103 tons, 6,4 %
Hull, fittings & equipment: 4 312 tons, 25,1 %
Fuel, ammunition & stores: 1 360 tons, 7,9 %
Miscellaneous weights: 10 150 tons, 59,0 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
20 181 lbs / 9 154 Kg = 3 571,6 x 2,2 " / 57 mm shells or 2,9 torpedoes
Stability (Unstable if below 1.00): 1,19
Metacentric height 5,4 ft / 1,7 m
Roll period: 17,8 seconds
Steadiness - As gun platform (Average = 50 %): 46 %
- Recoil effect (Restricted arc if above 1.00): 0,00
Seaboat quality (Average = 1.00): 1,30

Hull form characteristics:
Hull has raised forecastle, raised quarterdeck
Block coefficient: 0,631
Length to Beam Ratio: 5,00 : 1
'Natural speed' for length: 22,18 kts
Power going to wave formation at top speed: 52 %
Trim (Max stability = 0, Max steadiness = 100): 33
Bow angle (Positive = bow angles forward): 0,00 degrees
Stern overhang: 9,84 ft / 3,00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 29,53 ft / 9,00 m
- Forecastle (20 %): 29,53 ft / 9,00 m (16,40 ft / 5,00 m aft of break)
- Mid (50 %): 16,40 ft / 5,00 m
- Quarterdeck (15 %): 29,53 ft / 9,00 m (15,52 ft / 4,73 m before break)
- Stern: 29,53 ft / 9,00 m
- Average freeboard: 20,84 ft / 6,35 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 85,7 %
- Above water (accommodation/working, high = better): 129,9 %
Waterplane Area: 31 601 Square feet or 2 936 Square metres
Displacement factor (Displacement / loading): 136 %
Structure weight / hull surface area: 97 lbs/sq ft or 476 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,96
- Longitudinal: 1,44
- Overall: 1,00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent
Good seaboat, rides out heavy weather easily

2x catapult for floatplanes
hangar for 6 medium sized
capacity to tender up 10 medium or large. [/img]