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1

Tuesday, April 18th 2006, 1:21am

Danish ships for 1931......

......Maybe?

Lancer, Denmark DD/TB laid down 1931

Displacement:
1,452 t light; 1,497 t standard; 1,600 t normal; 1,682 t full load

Dimensions: Length overall / water x beam x draught
367.43 ft / 350.00 ft x 33.00 ft x 12.00 ft (normal load)
111.99 m / 106.68 m x 10.06 m x 3.66 m

Armament:
4 - 4.72" / 120 mm guns (2x2 guns), 52.72lbs / 23.91kg shells, 1930 Model
Quick firing guns in deck mounts with hoists
on centreline ends, evenly spread
8 - 1.46" / 37.0 mm guns (2x4 guns), 1.55lbs / 0.70kg shells, 1928 Model
Anti-aircraft guns in deck mounts
on side, all amidships
4 - 0.79" / 20.0 mm guns (2x2 guns), 0.24lbs / 0.11kg shells, 1925 Model
Anti-aircraft guns in deck mounts
on side, all forward, all raised mounts - superfiring
Weight of broadside 224 lbs / 102 kg
Shells per gun, main battery: 100
8 - 21.0" / 533.4 mm above water torpedoes

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.57" / 40 mm 0.79" / 20 mm -
2nd: 0.79" / 20 mm 0.79" / 20 mm -

- Conning tower: 0.79" / 20 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 39,581 shp / 29,528 Kw = 35.00 kts
Range 4,000nm at 12.00 kts
Bunker at max displacement = 185 tons

Complement:
126 - 164

Cost:
£0.840 million / $3.358 million

Distribution of weights at normal displacement:
Armament: 28 tons, 1.8 %
Armour: 19 tons, 1.2 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 16 tons, 1.0 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 2 tons, 0.1 %
Machinery: 843 tons, 52.7 %
Hull, fittings & equipment: 538 tons, 33.6 %
Fuel, ammunition & stores: 148 tons, 9.2 %
Miscellaneous weights: 25 tons, 1.6 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
416 lbs / 189 Kg = 7.9 x 4.7 " / 120 mm shells or 0.3 torpedoes
Stability (Unstable if below 1.00): 1.13
Metacentric height 1.2 ft / 0.4 m
Roll period: 12.7 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.46
Seaboat quality (Average = 1.00): 1.01

Hull form characteristics:
Hull has a flush deck
and transom stern
Block coefficient: 0.404
Length to Beam Ratio: 10.61 : 1
'Natural speed' for length: 21.52 kts
Power going to wave formation at top speed: 68 %
Trim (Max stability = 0, Max steadiness = 100): 69
Bow angle (Positive = bow angles forward): 30.00 degrees
Stern overhang: 3.00 ft / 0.91 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 25.00 ft / 7.62 m
- Forecastle (17 %): 22.00 ft / 6.71 m
- Mid (35 %): 13.00 ft / 3.96 m
- Quarterdeck (15 %): 13.00 ft / 3.96 m
- Stern: 13.00 ft / 3.96 m
- Average freeboard: 15.54 ft / 4.74 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 184.7 %
- Above water (accommodation/working, high = better): 82.9 %
Waterplane Area: 7,396 Square feet or 687 Square metres
Displacement factor (Displacement / loading): 61 %
Structure weight / hull surface area: 35 lbs/sq ft or 170 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 2.46
- Overall: 0.58
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is cramped
Ship has slow, easy roll, a good, steady gun platform



And the re-designed "Dido-kyrie"

Valkyrie II (Dido-kyrie), Denmark CL(aa) laid down 1931

Displacement:
5,996 t light; 6,216 t standard; 7,015 t normal; 7,654 t full load

Dimensions: Length overall / water x beam x draught
570.01 ft / 550.00 ft x 52.00 ft x 17.00 ft (normal load)
173.74 m / 167.64 m x 15.85 m x 5.18 m

Armament:
15 - 4.72" / 120 mm guns (5x3 guns), 52.72lbs / 23.91kg shells, 1931 Model
Dual purpose guns in turrets (on barbettes)
on centreline ends, majority aft, 3 raised mounts - superfiring
12 - 2.24" / 57.0 mm guns (6x2 guns), 5.65lbs / 2.56kg shells, 1931 Model
Dual purpose guns in deck mounts
on side, all amidships, 4 raised mounts - superfiring
24 - 0.79" / 20.0 mm guns (12x2 guns), 0.24lbs / 0.11kg shells, 1931 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, 8 raised mounts
Weight of broadside 864 lbs / 392 kg
Shells per gun, main battery: 160
8 - 23.6" / 600 mm above water torpedoes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 2.95" / 75 mm 367.45 ft / 112.00 m 7.87 ft / 2.40 m
Ends: Unarmoured
Main Belt covers 103 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.97" / 50 mm 0.79" / 20 mm 1.97" / 50 mm
2nd: 0.79" / 20 mm - -
3rd: 0.59" / 15 mm - -

- Armour deck: 1.97" / 50 mm, Conning tower: 1.97" / 50 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 64,480 shp / 48,102 Kw = 32.50 kts
Range 13,000nm at 12.00 kts
Bunker at max displacement = 1,438 tons

Complement:
383 - 498

Cost:
£2.490 million / $9.959 million

Distribution of weights at normal displacement:
Armament: 108 tons, 1.5 %
Armour: 1,262 tons, 18.0 %
- Belts: 352 tons, 5.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 169 tons, 2.4 %
- Armour Deck: 725 tons, 10.3 %
- Conning Tower: 16 tons, 0.2 %
Machinery: 1,928 tons, 27.5 %
Hull, fittings & equipment: 2,618 tons, 37.3 %
Fuel, ammunition & stores: 1,019 tons, 14.5 %
Miscellaneous weights: 80 tons, 1.1 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
8,276 lbs / 3,754 Kg = 157.0 x 4.7 " / 120 mm shells or 1.3 torpedoes
Stability (Unstable if below 1.00): 1.14
Metacentric height 2.4 ft / 0.7 m
Roll period: 14.1 seconds
Steadiness - As gun platform (Average = 50 %): 71 %
- Recoil effect (Restricted arc if above 1.00): 0.46
Seaboat quality (Average = 1.00): 1.20

Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0.505
Length to Beam Ratio: 10.58 : 1
'Natural speed' for length: 26.63 kts
Power going to wave formation at top speed: 58 %
Trim (Max stability = 0, Max steadiness = 100): 59
Bow angle (Positive = bow angles forward): 30.00 degrees
Stern overhang: 5.00 ft / 1.52 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 26.00 ft / 7.92 m
- Forecastle (18 %): 23.00 ft / 7.01 m
- Mid (60 %): 22.00 ft / 6.71 m (14.00 ft / 4.27 m aft of break)
- Quarterdeck (18 %): 14.00 ft / 4.27 m
- Stern: 14.00 ft / 4.27 m
- Average freeboard: 19.40 ft / 5.91 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 102.8 %
- Above water (accommodation/working, high = better): 146.4 %
Waterplane Area: 19,909 Square feet or 1,850 Square metres
Displacement factor (Displacement / loading): 116 %
Structure weight / hull surface area: 79 lbs/sq ft or 386 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.86
- Longitudinal: 1.42
- Overall: 0.90
Caution: Hull subject to strain in open-sea
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform

Valkyrie II class fleet escort cruisers are specifically designed to use the 120mm turrets designed to be retrofitted to the "Hel" class CAs. They are to supplement the anti-aircraft capabilities of the fleet. Turrets simmed as triples to simulate increased weight of HA/LA mounts, twins actually mounted.

Thoughts?????

2

Tuesday, April 18th 2006, 3:26am

On the Dido-kyrie, I believe she's a couple hundred tons too large to use the 0.90 strength level without risk, the cutoff point is 6,000 standard tons.

3

Tuesday, April 18th 2006, 4:03am

Easy

Shave the deck a bit and her dimensions can be reduced to be under the threshold. 725 tons of deck armor is a lot for a 6000 ton ship.

Nice job on the DDs though!

HoOmAn

Keeper of the Sacred Block Coefficient

  • Send private message

4

Tuesday, April 18th 2006, 11:08am

I like the DD too The Valkyrie - aren´t those TTs a waste of resources given the ships intended role?

Btw, how´s Dublin in spring?

5

Tuesday, April 18th 2006, 3:04pm

Dido-kyrie does need to be trimmed, but she and the can are both good designs otherwise.

I'd leave the torps aboard - she might be intended as an AAW ship, but that doesn't mean she won't be called upon to take part in surface actions.

6

Tuesday, April 18th 2006, 3:16pm

I agree with Rocky: the torps might be unneeded when performing the primary role, but they would be useful in a surface action. In OTL, both the Dido's and the Atlanta's carried torpedos.

7

Tuesday, April 18th 2006, 6:04pm

About TT on a anti aircraft ship.
I thing that any ship of war what evere its primary function is.
Is primery a warship and it has to be as flexible as posible.

8

Tuesday, April 18th 2006, 8:35pm

Corcerning the Valkyrie II.......

She is a bit of a risk for the Admiralty, they are not completely sold on the whole aircraft versus ships thing yet, but are aware of developements in the field of large seaplanes and ship-borne aircraft. This is the reason they have elected to have torps aboard, as they give a level of capability against larger surface vessels. Think of them as a second line of defense, after the DD's and other cruisers have had a go!


....and her she is after her diet!!!!

Valkyrie II (Dido-kyrie)a, Denmark CL(aa) laid down 1931

Displacement:
5,783 t light; 5,999 t standard; 6,782 t normal; 7,409 t full load

Dimensions: Length overall / water x beam x draught
570.01 ft / 550.00 ft x 52.00 ft x 17.00 ft (normal load)
173.74 m / 167.64 m x 15.85 m x 5.18 m

Armament:
15 - 4.72" / 120 mm guns (5x3 guns), 52.72lbs / 23.91kg shells, 1931 Model
Dual purpose guns in turrets (on barbettes)
on centreline ends, majority aft, 3 raised mounts - superfiring
12 - 2.24" / 57.0 mm guns (6x2 guns), 5.65lbs / 2.56kg shells, 1931 Model
Dual purpose guns in deck mounts
on side, all amidships, 4 raised mounts - superfiring
24 - 0.79" / 20.0 mm guns (12x2 guns), 0.24lbs / 0.11kg shells, 1931 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, 8 raised mounts
Weight of broadside 864 lbs / 392 kg
Shells per gun, main battery: 160
8 - 23.6" / 600 mm above water torpedoes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 2.95" / 75 mm 370.73 ft / 113.00 m 7.87 ft / 2.40 m
Ends: Unarmoured
Main Belt covers 104 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.97" / 50 mm 0.79" / 20 mm 1.97" / 50 mm
2nd: 0.79" / 20 mm - -
3rd: 0.59" / 15 mm - -

- Armour deck: 1.57" / 40 mm, Conning tower: 1.97" / 50 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 62,585 shp / 46,688 Kw = 32.50 kts
Range 13,000nm at 12.00 kts
Bunker at max displacement = 1,410 tons

Complement:
373 - 485

Cost:
£2.423 million / $9.691 million

Distribution of weights at normal displacement:
Armament: 108 tons, 1.6 %
Armour: 1,110 tons, 16.4 %
- Belts: 355 tons, 5.2 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 169 tons, 2.5 %
- Armour Deck: 571 tons, 8.4 %
- Conning Tower: 15 tons, 0.2 %
Machinery: 1,872 tons, 27.6 %
Hull, fittings & equipment: 2,613 tons, 38.5 %
Fuel, ammunition & stores: 999 tons, 14.7 %
Miscellaneous weights: 80 tons, 1.2 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
8,052 lbs / 3,652 Kg = 152.7 x 4.7 " / 120 mm shells or 1.2 torpedoes
Stability (Unstable if below 1.00): 1.15
Metacentric height 2.4 ft / 0.7 m
Roll period: 14.0 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.46
Seaboat quality (Average = 1.00): 1.22

Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0.488
Length to Beam Ratio: 10.58 : 1
'Natural speed' for length: 26.68 kts
Power going to wave formation at top speed: 57 %
Trim (Max stability = 0, Max steadiness = 100): 57
Bow angle (Positive = bow angles forward): 30.00 degrees
Stern overhang: 5.00 ft / 1.52 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 26.00 ft / 7.92 m
- Forecastle (18 %): 23.00 ft / 7.01 m
- Mid (60 %): 22.00 ft / 6.71 m (14.00 ft / 4.27 m aft of break)
- Quarterdeck (18 %): 14.00 ft / 4.27 m
- Stern: 14.00 ft / 4.27 m
- Average freeboard: 19.40 ft / 5.91 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 103.6 %
- Above water (accommodation/working, high = better): 148.0 %
Waterplane Area: 19,601 Square feet or 1,821 Square metres
Displacement factor (Displacement / loading): 117 %
Structure weight / hull surface area: 80 lbs/sq ft or 390 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.86
- Longitudinal: 1.46
- Overall: 0.91
Caution: Hull subject to strain in open-sea
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform
Good seaboat, rides out heavy weather easily

Valkyrie II class fleet escort cruisers are specifically designed to use the 120mm turrets designed to be retrofitted to the "Hel" class CAs. They are to supplement the anti-aircraft capabilities of the fleet. Turrets simmed as triples to simulate increased weight of HA/LA mounts, twins actually mounted.