WesWorld

Most work will be refits and completing the tankers and cruisers planned under my 1944 programme. The stalled FF-46 sloop programme will be restarted. There will be several refits which I'll post later.

There will be some much needed modernisation of the minesweeping fleet will also take place. The Ms-1 class date back to the early 1920s and will be replaced by a new MS-1 Class. The CMS-49 Class isn't essential but is going ahead now while I have the tonnage to play with. I might licence these to Belgium too. The existing CMS' will be refitted to this standard but will have two 57mm mounts (Kirk's originals have 2x 75mm and 4x 57mm which seems overkill on that hull).

Quoted

MS-1 Class, Netherlands Fleet Minesweeper laid down 1946

Displacement:
423 t light; 442 t standard; 529 t normal; 599 t full load

Dimensions: Length overall / water x beam x draught
202.13 ft / 196.85 ft x 31.17 ft x 7.55 ft (normal load)
61.61 m / 60.00 m x 9.50 m x 2.30 m

Armament:
2 - 3.54" / 90.0 mm guns in single mounts, 24.25lbs / 11.00kg shells, 1943 Model
Anti-aircraft guns in deck mounts
on centreline ends, evenly spread, 1 raised mount
2 - 1.57" / 40.0 mm guns (1x2 guns), 1.94lbs / 0.88kg shells, 1941 Model
Anti-aircraft guns in deck mount
on centreline aft, all raised guns - superfiring
2 - 0.91" / 23.0 mm guns in single mounts, 0.44lbs / 0.20kg shells, 1941 Model
Anti-aircraft guns in deck mounts
on side, all forward
4 - 0.52" / 13.2 mm guns in single mounts, 0.07lbs / 0.03kg shells, 1928 Model
Machine guns in deck mounts
on side, evenly spread
Weight of broadside 54 lbs / 24 kg
Shells per gun, main battery: 250

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0.98" / 25 mm 0.59" / 15 mm -
2nd: 0.59" / 15 mm 0.39" / 10 mm -

Machinery:
Diesel Internal combustion generators,
Electric motors, 2 shafts, 1,800 shp / 1,342 Kw = 17.24 kts
Range 7,500nm at 12.00 kts
Bunker at max displacement = 157 tons

Complement:
54 - 71

Cost:
£0.186 million / $0.746 million

Distribution of weights at normal displacement:
Armament: 6 tons, 1.2 %
Armour: 5 tons, 0.9 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 5 tons, 0.9 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 45 tons, 8.5 %
Hull, fittings & equipment: 273 tons, 51.5 %
Fuel, ammunition & stores: 106 tons, 20.0 %
Miscellaneous weights: 95 tons, 18.0 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
1,901 lbs / 862 Kg = 85.4 x 3.5 " / 90 mm shells or 1.1 torpedoes
Stability (Unstable if below 1.00): 1.19
Metacentric height 1.2 ft / 0.4 m
Roll period: 12.0 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.09
Seaboat quality (Average = 1.00): 2.00

Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0.400
Length to Beam Ratio: 6.32 : 1
'Natural speed' for length: 14.03 kts
Power going to wave formation at top speed: 53 %
Trim (Max stability = 0, Max steadiness = 100): 25
Bow angle (Positive = bow angles forward): 15.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 19.69 ft / 6.00 m
- Forecastle (20 %): 18.04 ft / 5.50 m
- Mid (55 %): 18.04 ft / 5.50 m (8.86 ft / 2.70 m aft of break)
- Quarterdeck (15 %): 8.86 ft / 2.70 m
- Stern: 8.86 ft / 2.70 m
- Average freeboard: 14.04 ft / 4.28 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 57.9 %
- Above water (accommodation/working, high = better): 183.9 %
Waterplane Area: 3,777 Square feet or 351 Square metres
Displacement factor (Displacement / loading): 222 %
Structure weight / hull surface area: 38 lbs/sq ft or 184 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.80
- Longitudinal: 7.92
- Overall: 1.00
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is excellent
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Misc Weight
45 tons sweeping gear and handling equipment
10 tons deguassing equipment
5 tons mine detecting ASDIC
5 tons Signaal M1946 surface search RDF set
15 tons for habitability
15 tons growth margin

Quoted

CMS-49 Class, Netherlands Coastal Minesweeper laid down 1946

Displacement:
160 t light; 166 t standard; 182 t normal; 194 t full load

Dimensions: Length overall / water x beam x draught
142.06 ft / 137.80 ft x 19.69 ft x 4.59 ft (normal load)
43.30 m / 42.00 m x 6.00 m x 1.40 m

Armament:
2 - 2.24" / 57.0 mm guns (1x2 guns), 5.73lbs / 2.60kg shells, 1943 Model
Anti-aircraft guns in deck mount
on centreline forward
4 - 0.52" / 13.2 mm guns in single mounts, 0.07lbs / 0.03kg shells, 1946 Model
Machine guns in deck mounts
on side, evenly spread
Weight of broadside 12 lbs / 5 kg
Shells per gun, main battery: 400

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0.59" / 15 mm 0.39" / 10 mm -

Machinery:
Diesel Internal combustion generators,
Electric motors, 1 shaft, 750 shp / 560 Kw = 15.57 kts
Range 3,500nm at 10.00 kts
Bunker at max displacement = 27 tons

Complement:
24 - 32

Cost:
£0.067 million / $0.268 million

Distribution of weights at normal displacement:
Armament: 1 tons, 0.8 %
Armour: 1 tons, 0.7 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 1 tons, 0.7 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 19 tons, 10.3 %
Hull, fittings & equipment: 89 tons, 48.9 %
Fuel, ammunition & stores: 21 tons, 11.8 %
Miscellaneous weights: 50 tons, 27.5 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
491 lbs / 223 Kg = 86.8 x 2.2 " / 57 mm shells or 0.5 torpedoes
Stability (Unstable if below 1.00): 1.10
Metacentric height 0.5 ft / 0.2 m
Roll period: 11.4 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.08
Seaboat quality (Average = 1.00): 2.00

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.510
Length to Beam Ratio: 7.00 : 1
'Natural speed' for length: 11.74 kts
Power going to wave formation at top speed: 58 %
Trim (Max stability = 0, Max steadiness = 100): 25
Bow angle (Positive = bow angles forward): 18.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 13.12 ft / 4.00 m
- Forecastle (20 %): 11.48 ft / 3.50 m
- Mid (50 %): 9.84 ft / 3.00 m
- Quarterdeck (15 %): 7.87 ft / 2.40 m
- Stern: 7.87 ft / 2.40 m
- Average freeboard: 9.91 ft / 3.02 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 71.4 %
- Above water (accommodation/working, high = better): 135.1 %
Waterplane Area: 1,756 Square feet or 163 Square metres
Displacement factor (Displacement / loading): 181 %
Structure weight / hull surface area: 24 lbs/sq ft or 116 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.79
- Longitudinal: 8.30
- Overall: 1.00
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is excellent
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Misc Weight
35 tons sweeping gear and handling equipment
5 tons Signaal M1946 surface search RDF set
5 tons mine hunting ASDIC
5 tons growth

I like the coastal minesweeper design; I see you have taken into account the threat of the magnetic mine, though I do not think it has appeared in game, it is a reasonable supposition that they exist and need to be defeated. I am curious why you chose a diesel electric engine arrangement rather than a stratight-forward geared diesel – might it be quieter?

The design is excellent in its sea-handling characteristics and should stand up to service most any seas. I suspect that the Kriegsmarine’s next generation minesweeper could look not unlike this little vessel.

I also think that the coastal minesweeper is a useful design and well thought out – and I agree with your assessment that their predecessors were over-gunned.

Thanks Bruce.
The MS-1 is based off my RN Poole class I built about 10 years ago (I think I roughly based it off the Algerine Class), but with metric dimensions and some changes in armament layout and of course revised misc weights. I'm sure I've seen degaussing gear mentioned on someone's misc weight before, but can't remember who - might have been one of Brock's French designs. I reckon such mines exist in WW. I'm not sure if its too early for mine detecting ASDIC yet, but even if its crude it might be useful. The idea behind the electric motors is to use some of that power when creeping to power the degaussing equipment to save having separate generators which would also have to be anti-magnetic etc. It might be quieter, again how prevalent acoustic mines are is open to question. I'm just assuming not everyone is still using those Hollywood mines with big horns all the time.


Also, I'm hoping to build a couple of destroyers. I liked Kirk's Z94 but the layout never really agreed with me. So I've kept the hull and engines but moved the armament around and used 115mm guns for better AA performance. Still not cheap, but I see these more as leaders. As to a mass produced destroyer... dunno yet, perhaps a warmed up TBJ repeat with 115mm, but that can wait until 1947.

Quoted

Z95, Fleet Destroyer Destroyer laid down 1946

Displacement:
2,073 t light; 2,253 t standard; 2,556 t normal; 2,798 t full load

Dimensions: Length overall / water x beam x draught
445.62 ft / 433.07 ft x 39.37 ft x 12.80 ft (normal load)
135.82 m / 132.00 m x 12.00 m x 3.90 m

Armament:
8 - 4.53" / 115 mm guns (4x2 guns), 52.91lbs / 24.00kg shells, 1941 Model
Dual purpose guns in deck mounts with hoists
on centreline ends, evenly spread, 2 raised mounts - superfiring
8 - 2.24" / 57.0 mm guns (4x2 guns), 5.73lbs / 2.60kg shells, 1943 Model
Anti-aircraft guns in deck mounts
on side, all aft, all raised mounts - superfiring
8 - 0.91" / 23.0 mm guns (4x2 guns), 0.44lbs / 0.20kg shells, 1941 Model
Anti-aircraft guns in deck mounts
on side ends, evenly spread, 2 raised mounts - superfiring
1 - 3.90" / 99.0 mm guns in single mounts, 65.00lbs / 29.48kg shells, 1943 Model
Muzzle loading gun in deck mount
on centreline forward
Weight of broadside 538 lbs / 244 kg
Shells per gun, main battery: 400
5 - 24.0" / 609.6 mm above water torpedoes

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.97" / 50 mm 0.98" / 25 mm 0.98" / 25 mm
2nd: 0.59" / 15 mm 0.39" / 10 mm -
3rd: 0.39" / 10 mm - -

Machinery:
Oil fired boilers, steam turbines,
Electric motors, 2 shafts, 40,500 shp / 30,213 Kw = 33.54 kts
Range 6,475nm at 15.00 kts
Bunker at max displacement = 545 tons

Complement:
179 - 233

Cost:
£1.837 million / $7.349 million

Distribution of weights at normal displacement:
Armament: 56 tons, 2.2 %
Armour: 38 tons, 1.5 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 38 tons, 1.5 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 996 tons, 39.0 %
Hull, fittings & equipment: 854 tons, 33.4 %
Fuel, ammunition & stores: 482 tons, 18.9 %
Miscellaneous weights: 130 tons, 5.1 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
1,116 lbs / 506 Kg = 24.0 x 4.5 " / 115 mm shells or 0.5 torpedoes
Stability (Unstable if below 1.00): 1.35
Metacentric height 2.1 ft / 0.6 m
Roll period: 11.4 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.53
Seaboat quality (Average = 1.00): 1.31

Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0.410
Length to Beam Ratio: 11.00 : 1
'Natural speed' for length: 23.85 kts
Power going to wave formation at top speed: 61 %
Trim (Max stability = 0, Max steadiness = 100): 38
Bow angle (Positive = bow angles forward): 22.00 degrees
Stern overhang: 3.28 ft / 1.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 22.93 ft / 6.99 m
- Forecastle (20 %): 20.67 ft / 6.30 m
- Mid (53 %): 20.67 ft / 6.30 m (12.47 ft / 3.80 m aft of break)
- Quarterdeck (15 %): 12.47 ft / 3.80 m
- Stern: 14.11 ft / 4.30 m
- Average freeboard: 17.12 ft / 5.22 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 152.2 %
- Above water (accommodation/working, high = better): 142.8 %
Waterplane Area: 10,960 Square feet or 1,018 Square metres
Displacement factor (Displacement / loading): 97 %
Structure weight / hull surface area: 41 lbs/sq ft or 200 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.51
- Longitudinal: 1.66
- Overall: 0.57
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is excellent
Good seaboat, rides out heavy weather easily

Electronic Equipment
One search ASDIC
One depth-finding ASDIC
One Phillips Mk V surface-search RDF set
One Signaal M-47 gunnery direction twin-antenna set with automatic tracking electronics mounted on RT.C1 main director
Two RT.F1 57mm visual directors
HF/DF

ASW Equipment
Two K-guns with 10x DC each and one Hedgehog sipgot mortar system

Note: 30 tons of misc weight represents Hazemeyer gear on 115mm and 57mm mounts

Pretty sure Walter's put degaussing gear on some of his Japanese ships. Don't think I've ever done so since I don't feel magnetic mines should have been deployed by any power in significant enough numbers to result in a reaction.

What is the breach-loading 99mm gun on that destroyer? That's not more of Kirk's ASW-mortar nonsense, is it?

I’m a little confused by the armament layout…

The main guns, two twin fore and two twin aft, is fine. But the four 57mm mounts are on the side *aft*, and raised mounts to boot? Wouldn’t that interfere with the arcs of fire for the aft 120mm guns? And where would the torpedo tubes be? I’d imagine centerline ahead of the after 120mm mounts but the placement of the 57mm makes me wonder. Or am I over-engineering things?

A while back, when I simmed the Yamato, I was looking around for some stuff to put on it and realized there was this stuff running around its hull. Because it was on the Yamato when it was completed according to the line drawing of her in "Anatomy of the Ship: The Battlship Yamato", I put it on my Yamatos and began putting it on other ships as well. Should be noted though that I am not sure if she was designed that way or if it was a later added feature during construction. When I look at the well-known photo of Yamato at Kure on September 20, 1941, I can't really see if they're there, but when you look at the trial photos from October 1941, the cables are visible running along the hull.



While I cannot be certain about it, I decided to stick to 1 ton per 5 feet of length (overall) for the degaussing coiling so for the Yamato it would be 193 tons.

... come to think of it, I think there was a drawing of it in one of the "Random Japanese Warship Details" books from Tamiya... not sure where I left them though...

Ok, it was probably Walter's ships then.
I just felt that by 1946 someone has made magnetic mines a stash of such mines by now, even if they've never been used and the counter to them seems simple enough. It's using up some misc weight, if its not needed I'll redistribute that weight elsewhere for something else. I'm not especially bothered one way or the other. Such kit can be retrofitted if needs be later as wartime experience showed.

Bruce, I think it might have worked, I eyed things over a drawing of the OTL Dutch 1947A Class destroyer. However, noticing that Kirk's Z-94 hull can't fit into a Type 1 dock, I've now cut the length and ditched X mount.

Brock, yes that was one of those Hedgehog thingys. I've removed it from the weapons tab (I'm keeping them on adaptations of Kirk's original sims if they have been built already). I've added 4 tons misc weight for the mount and 18 tons for the magazine and rounds.

Quoted

Z95, Fleet Destroyer Destroyer laid down 1946

Displacement:
1,908 t light; 2,041 t standard; 2,323 t normal; 2,549 t full load

Dimensions: Length overall / water x beam x draught
406.25 ft / 393.70 ft x 39.37 ft x 12.80 ft (normal load)
123.82 m / 120.00 m x 12.00 m x 3.90 m

Armament:
6 - 4.53" / 115 mm guns (3x2 guns), 52.91lbs / 24.00kg shells, 1941 Model
Dual purpose guns in deck mounts with hoists
on centreline ends, majority forward, 1 raised mount - superfiring
8 - 2.24" / 57.0 mm guns (4x2 guns), 5.73lbs / 2.60kg shells, 1943 Model
Anti-aircraft guns in deck mounts
on side, all aft, all raised mounts - superfiring
4 - 0.91" / 23.0 mm guns in single mounts, 0.44lbs / 0.20kg shells, 1941 Model
Anti-aircraft guns in deck mounts
on side ends, evenly spread, all raised mounts - superfiring
Weight of broadside 365 lbs / 166 kg
Shells per gun, main battery: 400
5 - 24.0" / 609.6 mm above water torpedoes

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0.98" / 25 mm 0.59" / 15 mm 0.98" / 25 mm
2nd: 0.59" / 15 mm 0.39" / 10 mm -
3rd: 0.39" / 10 mm - -

Machinery:
Oil fired boilers, steam turbines,
Electric motors, 2 shafts, 40,500 shp / 30,213 Kw = 33.67 kts
Range 6,475nm at 15.00 kts
Bunker at max displacement = 508 tons

Complement:
166 - 217

Cost:
£1.678 million / $6.711 million

Distribution of weights at normal displacement:
Armament: 41 tons, 1.7 %
Armour: 19 tons, 0.8 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 19 tons, 0.8 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 969 tons, 41.7 %
Hull, fittings & equipment: 730 tons, 31.4 %
Fuel, ammunition & stores: 415 tons, 17.9 %
Miscellaneous weights: 150 tons, 6.5 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
936 lbs / 424 Kg = 20.2 x 4.5 " / 115 mm shells or 0.4 torpedoes
Stability (Unstable if below 1.00): 1.35
Metacentric height 2.1 ft / 0.6 m
Roll period: 11.4 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.35
Seaboat quality (Average = 1.00): 1.17

Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0.410
Length to Beam Ratio: 10.00 : 1
'Natural speed' for length: 22.92 kts
Power going to wave formation at top speed: 65 %
Trim (Max stability = 0, Max steadiness = 100): 42
Bow angle (Positive = bow angles forward): 22.00 degrees
Stern overhang: 3.28 ft / 1.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 22.93 ft / 6.99 m
- Forecastle (20 %): 20.67 ft / 6.30 m
- Mid (53 %): 20.67 ft / 6.30 m (12.47 ft / 3.80 m aft of break)
- Quarterdeck (15 %): 12.47 ft / 3.80 m
- Stern: 14.11 ft / 4.30 m
- Average freeboard: 17.12 ft / 5.22 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 158.0 %
- Above water (accommodation/working, high = better): 134.9 %
Waterplane Area: 9,963 Square feet or 926 Square metres
Displacement factor (Displacement / loading): 92 %
Structure weight / hull surface area: 39 lbs/sq ft or 188 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 1.96
- Overall: 0.57
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is excellent

Electronic Equipment
One search ASDIC
One depth-finding ASDIC
One Phillips Mk V surface-search RDF set
One Signaal M-47 gunnery direction twin-antenna set with automatic tracking electronics mounted on RT.C1 main director
Two RT.F1 57mm visual directors
HF/DF

ASW Equipment
Two K-guns with 10x DC each (10 tons) and one Hedgehog sipgot mortar system (4 tons plus 18 tons magazine)

Note:
30 tons of misc weight represents Hazemeyer gear on 115mm and 57mm mounts
10 tons of misc weght represents five 24in torpedoes and the mount

Quoted from "Hood"

Brock, yes that was one of those Hedgehog thingys. I've removed it from the weapons tab (I'm keeping them on adaptations of Kirk's original sims if they have been built already). I've added 4 tons misc weight for the mount and 18 tons for the magazine and rounds.

Works for me. I never agreed with the way Kirk simmed those things on his past ships - to me, that's what miscellaneous weight is for. Thanks for the fix.

I think it still feels a bit cramped of a design to me, but I'm used to envisioning the French 57mm mounts, which are found in large and heavy gunhouses. If memory serves, the Dutch 57mm twins were open mounts (like quad Bofors). That being the case, I expect things should be a bit tight but doable.

I'll probably fit four twin 40mm, the 57mm just seem like too much dakka to me.


Some refits now.

Kirk's odd little S-19 Class sloops need refits and being not enough numbers of escorts these need brining up to scratch until new construction becomes available. These 25% refits need docks so its likely only 4 a year will be refitted and there are 22 of these! Expect me to finish these in 1952!! The old for but not with torpedoes weird thingy (welded shut compartments the crew don't know about oddities) are now gone forever. I'm not sure these were big enough for torps anyway.

Quoted

S-19, Netherlands Sloop laid down 1930

Displacement:
998 t light; 1,047 t standard; 1,259 t normal; 1,429 t full load

Dimensions: Length overall / water x beam x draught
329.95 ft / 314.96 ft x 32.81 ft x 8.53 ft (normal load)
100.57 m / 96.00 m x 10.00 m x 2.60 m

Armament:
3 - 4.53" / 115 mm guns in single mounts, 52.91lbs / 24.00kg shells, 1941 Model
Dual purpose guns in deck mounts
on centreline ends, majority aft, 2 raised mounts - superfiring
8 - 1.57" / 40.0 mm guns (4x2 guns), 1.94lbs / 0.88kg shells, 1941 Model
Anti-aircraft guns in deck mounts
on side, all amidships, all raised mounts - superfiring
4 - 0.91" / 23.0 mm guns (2x2 guns), 0.44lbs / 0.20kg shells, 1943 Model
Anti-aircraft guns in deck mounts
on side, all forward, all raised mounts - superfiring
Weight of broadside 176 lbs / 80 kg
Shells per gun, main battery: 230

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0.98" / 25 mm 0.59" / 15 mm -
2nd: 0.59" / 15 mm 0.39" / 10 mm -
3rd: 0.59" / 15 mm 0.39" / 10 mm -

Machinery:
Diesel Internal combustion motors,
Geared drive, 2 shafts, 8,353 shp / 6,231 Kw = 24.00 kts
Range 10,000nm at 12.00 kts
Bunker at max displacement = 382 tons

Complement:
105 - 137

Cost:
£0.363 million / $1.451 million

Distribution of weights at normal displacement:
Armament: 20 tons, 1.6 %
Armour: 12 tons, 0.9 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 12 tons, 0.9 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 253 tons, 20.1 %
Hull, fittings & equipment: 624 tons, 49.5 %
Fuel, ammunition & stores: 261 tons, 20.8 %
Miscellaneous weights: 90 tons, 7.1 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
2,309 lbs / 1,048 Kg = 49.8 x 4.5 " / 115 mm shells or 0.8 torpedoes
Stability (Unstable if below 1.00): 1.18
Metacentric height 1.3 ft / 0.4 m
Roll period: 12.2 seconds
Steadiness - As gun platform (Average = 50 %): 71 %
- Recoil effect (Restricted arc if above 1.00): 0.21
Seaboat quality (Average = 1.00): 1.42

Hull form characteristics:
Hull has raised forecastle
and transom stern
Block coefficient: 0.500
Length to Beam Ratio: 9.60 : 1
'Natural speed' for length: 20.32 kts
Power going to wave formation at top speed: 56 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 23.00 degrees
Stern overhang: 6.56 ft / 2.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 19.85 ft / 6.05 m
- Forecastle (20 %): 17.39 ft / 5.30 m (11.81 ft / 3.60 m aft of break)
- Mid (50 %): 11.81 ft / 3.60 m
- Quarterdeck (15 %): 11.81 ft / 3.60 m
- Stern: 11.81 ft / 3.60 m
- Average freeboard: 13.12 ft / 4.00 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 86.5 %
- Above water (accommodation/working, high = better): 153.4 %
Waterplane Area: 7,160 Square feet or 665 Square metres
Displacement factor (Displacement / loading): 165 %
Structure weight / hull surface area: 52 lbs/sq ft or 254 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.05
- Longitudinal: 2.48
- Overall: 1.14
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

Misc Weight
30 tons DCs
22 tons for Hedgehog and magazine
10 tons 2x ASDIC sets10
5 tons RDF set
10 tons Hazemayer equipment
10 tons growth

Refit Notes
All 100mm single mounts replaced by 115mm single mounts
A mount replaced by a Hedgehog ASW system
Addition of search ASDIC set and a depth-finding ASDIC set
Addition of Signaal M1946 surface search RDF set
Replacement of 40mm twin and qaud mounts with four twin 40mm Hazemayer IV mounts
Replacement of light AA with two twin 23mm FN-Madsen twin mounts
Refurbishment of internal fittings for life extension

The KBH gunboats could do with a simple spruce up. Cheap 'n' cheerful 25% refits with newer guns and adding some AA capability. These will have to double as escorts too as numbers fall in the fleet. The smaller KBLs (again a weird design) have underwater torpedoes and will need dry docks etc. and as docks out east are rare, these will be put off until 1947 and then given topside changes only.

Quoted

KBH, Netherlands Kanoneerbooten laid down 1930

Displacement:
1,918 t light; 2,045 t standard; 2,463 t normal; 2,797 t full load

Dimensions: Length overall / water x beam x draught
376.06 ft / 360.89 ft x 39.70 ft x 11.48 ft (normal load)
114.62 m / 110.00 m x 12.10 m x 3.50 m

Armament:
8 - 4.53" / 115 mm guns (4x2 guns), 52.91lbs / 24.00kg shells, 1944 Model
Dual purpose guns in deck mounts with hoists
on centreline ends, evenly spread, 2 raised mounts - superfiring
8 - 2.24" / 57.0 mm guns (4x2 guns), 5.73lbs / 2.60kg shells, 1943 Model
Anti-aircraft guns in deck mounts
on side, all aft, all raised mounts - superfiring
8 - 0.91" / 23.0 mm guns (4x2 guns), 0.44lbs / 0.20kg shells, 1930 Model
Anti-aircraft guns in deck mounts
on side ends, evenly spread, all raised mounts - superfiring
Weight of broadside 473 lbs / 214 kg
Shells per gun, main battery: 280

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 1.18" / 30 mm 196.85 ft / 60.00 m 9.84 ft / 3.00 m
Ends: Unarmoured
Main Belt covers 84 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.18" / 30 mm 0.79" / 20 mm 0.98" / 25 mm
2nd: 0.59" / 15 mm 0.39" / 10 mm -
3rd: 0.39" / 10 mm - -

- Armour deck: 0.59" / 15 mm, Conning tower: 0.79" / 20 mm

Machinery:
Diesel Internal combustion motors,
Geared drive, 2 shafts, 12,174 shp / 9,082 Kw = 24.00 kts
Range 8,000nm at 15.00 kts
Bunker at max displacement = 753 tons

Complement:
174 - 227

Cost:
£0.681 million / $2.724 million

Distribution of weights at normal displacement:
Armament: 52 tons, 2.1 %
Armour: 241 tons, 9.8 %
- Belts: 99 tons, 4.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 28 tons, 1.1 %
- Armour Deck: 111 tons, 4.5 %
- Conning Tower: 3 tons, 0.1 %
Machinery: 369 tons, 15.0 %
Hull, fittings & equipment: 1,186 tons, 48.1 %
Fuel, ammunition & stores: 545 tons, 22.1 %
Miscellaneous weights: 70 tons, 2.8 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
4,857 lbs / 2,203 Kg = 104.7 x 4.5 " / 115 mm shells or 1.4 torpedoes
Stability (Unstable if below 1.00): 1.18
Metacentric height 1.7 ft / 0.5 m
Roll period: 12.7 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.49
Seaboat quality (Average = 1.00): 1.46

Hull form characteristics:
Hull has raised forecastle
and transom stern
Block coefficient: 0.524
Length to Beam Ratio: 9.09 : 1
'Natural speed' for length: 21.78 kts
Power going to wave formation at top speed: 55 %
Trim (Max stability = 0, Max steadiness = 100): 48
Bow angle (Positive = bow angles forward): 22.00 degrees
Stern overhang: 6.56 ft / 2.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 21.29 ft / 6.49 m
- Forecastle (20 %): 21.29 ft / 6.49 m (13.29 ft / 4.05 m aft of break)
- Mid (50 %): 13.29 ft / 4.05 m
- Quarterdeck (15 %): 13.29 ft / 4.05 m
- Stern: 13.29 ft / 4.05 m
- Average freeboard: 14.89 ft / 4.54 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 70.8 %
- Above water (accommodation/working, high = better): 147.7 %
Waterplane Area: 10,154 Square feet or 943 Square metres
Displacement factor (Displacement / loading): 168 %
Structure weight / hull surface area: 72 lbs/sq ft or 352 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.07
- Longitudinal: 2.38
- Overall: 1.16
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform
Good seaboat, rides out heavy weather easily

Misc Weight
4 tons small arms locker
6 tons extra director and provision for indirect bombardment
5 tons for RDF set
10 tons for Hazemayer equipment
10 tons air conditioning equipment
35 tons spare

Refit Notes
Replacement of 40mm twin mounts with stabilised Hazemayer IV 57mm twin mounts
Replacement of single 20mm with 23mm FN-Madsen twin stabilised mounts
Addition of Signaal M1946 surface search RDF set
Modernisation of directors
Refurbishment of internal fittings for life extension
Addition of air conditioning

As mentioned yesterday, here are the CMS-1 Class refits.

Quoted

CMS-1 Class, Netherlands Coastal Minesweeper laid down 1930

Displacement:
191 t light; 198 t standard; 215 t normal; 228 t full load

Dimensions: Length overall / water x beam x draught
141.16 ft / 127.95 ft x 19.69 ft x 4.59 ft (normal load)
43.02 m / 39.00 m x 6.00 m x 1.40 m

Armament:
4 - 2.24" / 57.0 mm guns (2x2 guns), 5.73lbs / 2.60kg shells, 1943 Model
Anti-aircraft guns in deck mounts
on centreline ends, evenly spread
Weight of broadside 23 lbs / 10 kg
Shells per gun, main battery: 220

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0.59" / 15 mm 0.39" / 10 mm -

Machinery:
Coal fired boilers, complex reciprocating steam engines,
Geared drive, 1 shaft, 676 ihp / 504 Kw = 15.00 kts
Range 3,000nm at 8.00 kts
Bunker at max displacement = 30 tons (100% coal)

Complement:
27 - 36

Cost:
£0.063 million / $0.250 million

Distribution of weights at normal displacement:
Armament: 3 tons, 1.3 %
Armour: 2 tons, 1.1 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 2 tons, 1.1 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 42 tons, 19.7 %
Hull, fittings & equipment: 98 tons, 45.8 %
Fuel, ammunition & stores: 24 tons, 11.1 %
Miscellaneous weights: 45 tons, 21.0 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
348 lbs / 158 Kg = 61.6 x 2.2 " / 57 mm shells or 0.4 torpedoes
Stability (Unstable if below 1.00): 1.04
Metacentric height 0.5 ft / 0.1 m
Roll period: 12.1 seconds
Steadiness - As gun platform (Average = 50 %): 78 %
- Recoil effect (Restricted arc if above 1.00): 0.15
Seaboat quality (Average = 1.00): 1.56

Hull form characteristics:
Hull has raised forecastle
and transom stern
Block coefficient: 0.649
Length to Beam Ratio: 6.50 : 1
'Natural speed' for length: 13.16 kts
Power going to wave formation at top speed: 62 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 18.00 degrees
Stern overhang: 7.87 ft / 2.40 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 16.40 ft / 5.00 m
- Forecastle (20 %): 12.14 ft / 3.70 m (7.87 ft / 2.40 m aft of break)
- Mid (50 %): 7.87 ft / 2.40 m
- Quarterdeck (15 %): 7.87 ft / 2.40 m
- Stern: 7.87 ft / 2.40 m
- Average freeboard: 9.07 ft / 2.76 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 97.6 %
- Above water (accommodation/working, high = better): 111.7 %
Waterplane Area: 2,011 Square feet or 187 Square metres
Displacement factor (Displacement / loading): 139 %
Structure weight / hull surface area: 28 lbs/sq ft or 137 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.98
- Longitudinal: 6.98
- Overall: 1.20
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Refit Notes
Replacement of 75mm mounts with twin 57mm Hazemayer IV mounts
Removal of single 57mm mounts
Addition of Signaal M1946 surface search RDF set
Refurbishment of internal fittings for life extension

Quoted

I just felt that by 1946 someone has made magnetic mines a stash of such mines by now, even if they've never been used and the counter to them seems simple enough.

I would think so too. When looking around quickly yesterday regarding the Yamato, I think I saw something mentioned about magnetic torpedoes as well. If I understand it right, the counter is simple indeed. Just have a cable wrapped around your ship a bunch of times and run a current through it.

Given the current situation, the lack of proper transports and vessels designed to make use of the Netherlands quite large force of Marines (3 brigades), attention is turning to building a class of LSDs.

Quoted

Rotterdam, Netherlands Landing Ship Dock laid down 1946

Displacement:
10,527 t light; 10,827 t standard; 12,147 t normal; 13,203 t full load

Dimensions: Length overall / water x beam x draught
484.86 ft / 475.72 ft x 72.83 ft x 15.00 ft (normal load)
147.79 m / 145.00 m x 22.20 m x 4.57 m

Armament:
4 - 4.53" / 115 mm guns (2x2 guns), 52.91lbs / 24.00kg shells, 1944 Model
Dual purpose guns in deck mounts with hoists
on centreline, all forward, 1 raised mount - superfiring
12 - 1.57" / 40.0 mm guns (6x2 guns), 1.94lbs / 0.88kg shells, 1941 Model
Anti-aircraft guns in deck mounts
on side, all aft, 2 raised mounts - superfiring
8 - 0.91" / 23.0 mm guns (4x2 guns), 0.44lbs / 0.20kg shells, 1941 Model
Anti-aircraft guns in deck mounts
on side, all amidships, all raised mounts - superfiring
Weight of broadside 238 lbs / 108 kg
Shells per gun, main battery: 400

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0.98" / 25 mm 0.59" / 15 mm 0.98" / 25 mm
2nd: 0.59" / 15 mm 0.59" / 15 mm -
3rd: 0.39" / 10 mm - -

- Conning tower: 1.97" / 50 mm

Machinery:
Diesel Internal combustion generators,
Electric motors, 2 shafts, 13,500 shp / 10,071 Kw = 18.04 kts
Range 16,000nm at 12.00 kts
Bunker at max displacement = 2,376 tons

Complement:
578 - 752

Cost:
£3.105 million / $12.421 million

Distribution of weights at normal displacement:
Armament: 27 tons, 0.2 %
Armour: 39 tons, 0.3 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 16 tons, 0.1 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 22 tons, 0.2 %
Machinery: 337 tons, 2.8 %
Hull, fittings & equipment: 3,754 tons, 30.9 %
Fuel, ammunition & stores: 1,620 tons, 13.3 %
Miscellaneous weights: 6,370 tons, 52.4 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
26,272 lbs / 11,917 Kg = 566.1 x 4.5 " / 115 mm shells or 2.9 torpedoes
Stability (Unstable if below 1.00): 1.11
Metacentric height 3.8 ft / 1.2 m
Roll period: 15.7 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.04
Seaboat quality (Average = 1.00): 2.00

Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0.818
Length to Beam Ratio: 6.53 : 1
'Natural speed' for length: 21.81 kts
Power going to wave formation at top speed: 42 %
Trim (Max stability = 0, Max steadiness = 100): 35
Bow angle (Positive = bow angles forward): 15.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 34.12 ft / 10.40 m
- Forecastle (20 %): 31.99 ft / 9.75 m
- Mid (60 %): 30.02 ft / 9.15 m (15.91 ft / 4.85 m aft of break)
- Quarterdeck (15 %): 15.91 ft / 4.85 m
- Stern: 15.91 ft / 4.85 m
- Average freeboard: 25.33 ft / 7.72 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 68.8 %
- Above water (accommodation/working, high = better): 255.2 %
Waterplane Area: 30,737 Square feet or 2,856 Square metres
Displacement factor (Displacement / loading): 167 %
Structure weight / hull surface area: 87 lbs/sq ft or 426 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.93
- Longitudinal: 1.99
- Overall: 1.00
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Class Names: Rotterdam, +?

The docking well is 50.5m long and 15.25m wide.

Radio-Location Equipment:
1x Signaal M1946 search set
1x Signaal M-45 gun-laying set on main director

Misc Weight:
650 tons for cargo/ vehicles
650 tons for dock equipment
50 tons for diesel generator and electrical equipment
520 tons for 260 soldiers
100 tons for command spaces
200 tons for vehicle workshop
50 tons for vehicle ammunition
100 tons for vehicle fuel
220 tons for landing craft in davits
200 tons for landing craft in dock
80 tons for radars and misc equipment
3550 tons for water

Quoted

... come to think of it, I think there was a drawing of it in one of the "Random Japanese Warship Details" books from Tamiya... not sure where I left them though...

I actually managed to find them a few weeks ago, but forgot about this post...

As on the Heavy Cruiser Myoko..


Destroyer picture is of the Harutsuki. The left detail is from the Destroyer Akizuki and the right ones are from the destroyer Harukaze (top) and the light cruiser Natori (bottom)


... at least if I looked the ships up correctly...

A fairly basic refit of the KBL Class gunboats. I've decided to keep the underwater torpedoes as they might be handy.

KBL, Netherlands Kanoneerbooten laid down 1930

Displacement:
575 t light; 636 t standard; 661 t normal; 680 t full load

Dimensions: Length overall / water x beam x draught
185.20 ft / 172.24 ft x 27.89 ft x 9.19 ft (normal load)
56.45 m / 52.50 m x 8.50 m x 2.80 m

Armament:
8 - 4.53" / 115 mm guns (2x4 guns), 52.91lbs / 24.00kg shells, 1944 Model
Dual purpose guns in deck mounts
on centreline ends, evenly spread, 1 raised mount
4 - 1.57" / 40.0 mm guns (2x2 guns), 1.94lbs / 0.88kg shells, 1941 Model
Anti-aircraft guns in deck mounts
on side, all amidships, all raised mounts - superfiring
4 - 0.52" / 13.2 mm guns in single mounts, 0.07lbs / 0.03kg shells, 1928 Model
Machine guns in deck mounts
on side ends, evenly spread, all raised mounts - superfiring
Weight of broadside 431 lbs / 196 kg
Shells per gun, main battery: 200
2 - 21.0" / 533.4 mm submerged torpedo tubes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 1.97" / 50 mm 112.37 ft / 34.25 m 13.12 ft / 4.00 m
Ends: 0.59" / 15 mm 59.88 ft / 18.25 m 13.12 ft / 4.00 m
Main Belt covers 100 % of normal length
Main belt does not fully cover magazines and engineering spaces

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.18" / 30 mm 0.79" / 20 mm -
2nd: 0.59" / 15 mm 0.39" / 10 mm -
3rd: 0.31" / 8 mm - -

- Armour deck: 0.55" / 14 mm, Conning tower: 1.97" / 50 mm

Machinery:
Diesel Internal combustion motors,
Electric cruising motors plus geared drives, 2 shafts, 1,431 shp / 1,068 Kw = 16.00 kts
Range 4,000nm at 8.00 kts
Bunker at max displacement = 44 tons

Complement:
64 - 84

Cost:
£0.275 million / $1.100 million

Distribution of weights at normal displacement:
Armament: 47 tons, 7.2 %
Armour: 198 tons, 30.0 %
- Belts: 144 tons, 21.8 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 16 tons, 2.5 %
- Armour Deck: 35 tons, 5.3 %
- Conning Tower: 3 tons, 0.5 %
Machinery: 42 tons, 6.3 %
Hull, fittings & equipment: 259 tons, 39.2 %
Fuel, ammunition & stores: 86 tons, 13.0 %
Miscellaneous weights: 28 tons, 4.2 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
836 lbs / 379 Kg = 18.0 x 4.5 " / 115 mm shells or 0.5 torpedoes
Stability (Unstable if below 1.00): 1.21
Metacentric height 1.0 ft / 0.3 m
Roll period: 11.5 seconds
Steadiness - As gun platform (Average = 50 %): 65 %
- Recoil effect (Restricted arc if above 1.00): 0.70
Seaboat quality (Average = 1.00): 1.59

Hull form characteristics:
Hull has raised forecastle
and transom stern
Block coefficient: 0.524
Length to Beam Ratio: 6.18 : 1
'Natural speed' for length: 15.57 kts
Power going to wave formation at top speed: 58 %
Trim (Max stability = 0, Max steadiness = 100): 41
Bow angle (Positive = bow angles forward): 18.00 degrees
Stern overhang: 6.56 ft / 2.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 19.69 ft / 6.00 m
- Forecastle (20 %): 14.44 ft / 4.40 m (9.19 ft / 2.80 m aft of break)
- Mid (50 %): 9.19 ft / 2.80 m
- Quarterdeck (15 %): 9.19 ft / 2.80 m
- Stern: 9.19 ft / 2.80 m
- Average freeboard: 10.66 ft / 3.25 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 101.1 %
- Above water (accommodation/working, high = better): 93.1 %
Waterplane Area: 3,404 Square feet or 316 Square metres
Displacement factor (Displacement / loading): 95 %
Structure weight / hull surface area: 45 lbs/sq ft or 221 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.85
- Longitudinal: 4.65
- Overall: 1.01
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is adequate
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Deck armour is 15mm over vitals and 7.5mm over the ends

Misc Weight
8 tons to represent electric drive and tunnel propellers
4 tons for two 21in torpedo tubes (no reloads)
6 tons for extra director and provision for indirect bombardment
5 tons for RDF set
5 tons for Hazemayer equipment

Refit Notes
Replacement of 125mm twin mounts with 115mm DP twin mounts
Replacement of 40mm twin mounts with stabilised Hazemayer IV twin mounts
Addition of Signaal M1946 surface search RDF set
Modernisation of directors
Refurbishment of internal fittings for life extension

Quoted from "Hood"

A fairly basic refit of the KBL Class gunboats. I've decided to keep the underwater torpedoes as they might be handy.

KBL, Netherlands Kanoneerbooten laid down 1930


Armament:
8 - 4.53" / 115 mm guns (2x4 guns), 52.91lbs / 24.00kg shells, 1944 Model
Dual purpose guns in deck mounts
on centreline ends, evenly spread, 1 raised mount

I'm thinking a misprint here...

Drat, those spies have found the 125mm gatling guns!!

A fixed version.

KBL, Netherlands Kanoneerbooten laid down 1930

Displacement:
502 t light; 538 t standard; 560 t normal; 577 t full load

Dimensions: Length overall / water x beam x draught
185.20 ft / 172.24 ft x 27.89 ft x 9.19 ft (normal load)
56.45 m / 52.50 m x 8.50 m x 2.80 m

Armament:
4 - 4.53" / 115 mm guns (2x2 guns), 52.91lbs / 24.00kg shells, 1944 Model
Dual purpose guns in deck mounts
on centreline ends, evenly spread
4 - 1.57" / 40.0 mm guns (2x2 guns), 1.94lbs / 0.88kg shells, 1941 Model
Anti-aircraft guns in deck mounts
on side, all amidships, all raised mounts - superfiring
4 - 0.52" / 13.2 mm guns in single mounts, 0.07lbs / 0.03kg shells, 1928 Model
Machine guns in deck mounts
on side ends, evenly spread, all raised mounts - superfiring
Weight of broadside 220 lbs / 100 kg
Shells per gun, main battery: 200
2 - 21.0" / 533.4 mm submerged torpedo tubes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 1.97" / 50 mm 112.37 ft / 34.25 m 13.12 ft / 4.00 m
Ends: 0.59" / 15 mm 59.88 ft / 18.25 m 13.12 ft / 4.00 m
Main Belt covers 100 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.18" / 30 mm 0.79" / 20 mm -
2nd: 0.59" / 15 mm 0.39" / 10 mm -
3rd: 0.31" / 8 mm - -

- Armour deck: 0.55" / 14 mm, Conning tower: 1.97" / 50 mm

Machinery:
Diesel Internal combustion motors,
Electric cruising motors plus geared drives, 2 shafts, 1,239 shp / 925 Kw = 16.00 kts
Range 4,000nm at 8.00 kts
Bunker at max displacement = 39 tons

Complement:
56 - 74

Cost:
£0.180 million / $0.722 million

Distribution of weights at normal displacement:
Armament: 24 tons, 4.3 %
Armour: 191 tons, 34.1 %
- Belts: 143 tons, 25.5 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 13 tons, 2.3 %
- Armour Deck: 32 tons, 5.8 %
- Conning Tower: 3 tons, 0.5 %
Machinery: 38 tons, 6.7 %
Hull, fittings & equipment: 216 tons, 38.6 %
Fuel, ammunition & stores: 58 tons, 10.4 %
Miscellaneous weights: 33 tons, 5.9 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
980 lbs / 445 Kg = 21.1 x 4.5 " / 115 mm shells or 0.7 torpedoes
Stability (Unstable if below 1.00): 1.20
Metacentric height 1.0 ft / 0.3 m
Roll period: 11.6 seconds
Steadiness - As gun platform (Average = 50 %): 76 %
- Recoil effect (Restricted arc if above 1.00): 0.37
Seaboat quality (Average = 1.00): 1.85

Hull form characteristics:
Hull has raised forecastle
and transom stern
Block coefficient: 0.444
Length to Beam Ratio: 6.18 : 1
'Natural speed' for length: 15.76 kts
Power going to wave formation at top speed: 55 %
Trim (Max stability = 0, Max steadiness = 100): 41
Bow angle (Positive = bow angles forward): 18.00 degrees
Stern overhang: 6.56 ft / 2.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 19.69 ft / 6.00 m
- Forecastle (20 %): 14.44 ft / 4.40 m (9.19 ft / 2.80 m aft of break)
- Mid (50 %): 9.19 ft / 2.80 m
- Quarterdeck (15 %): 9.19 ft / 2.80 m
- Stern: 9.19 ft / 2.80 m
- Average freeboard: 10.66 ft / 3.25 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 77.6 %
- Above water (accommodation/working, high = better): 99.0 %
Waterplane Area: 3,167 Square feet or 294 Square metres
Displacement factor (Displacement / loading): 114 %
Structure weight / hull surface area: 40 lbs/sq ft or 194 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.85
- Longitudinal: 4.63
- Overall: 1.01
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Deck armour is 15mm over vitals and 7.5mm over the ends

Misc Weight
8 tons to represent electric drive and tunnel propellers
4 tons for two 21in torpedo tubes (no reloads)
6 tons for extra director and provision for indirect bombardment
5 tons for RDF set
10 tons for air conditioning

Refit Notes
Replacement of 125mm twin mounts with 115mm DP twin mounts
Addition of Signaal M1946 surface search RDF set
Modernisation of directors
Refurbishment of internal fittings for life extension
Addition of air conditioning

Something for 1947, I'll probably build four of these ships for the DEI.
They will act as transports in peacetime and LSTs in wartime. They will be used for island communications etc.


Teluk Class, Netherlands Landing Craft Tank laid down 1947

Displacement:
3,303 t light; 3,380 t standard; 3,554 t normal; 3,694 t full load

Dimensions: Length overall / water x beam x draught
335.37 ft / 328.08 ft x 50.85 ft x 12.30 ft (normal load)
102.22 m / 100.00 m x 15.50 m x 3.75 m

Armament:
1 - 3.54" / 90.0 mm guns in single mounts, 24.25lbs / 11.00kg shells, 1943 Model
Dual purpose gun in deck mount
on centreline aft
8 - 1.57" / 40.0 mm guns (4x2 guns), 1.94lbs / 0.88kg shells, 1947 Model
Anti-aircraft guns in deck mounts
on side ends, evenly spread, all raised mounts - superfiring
4 - 0.91" / 23.0 mm guns (2x2 guns), 0.44lbs / 0.20kg shells, 1941 Model
Anti-aircraft guns in deck mounts
on side, all aft, all raised mounts - superfiring
Weight of broadside 42 lbs / 19 kg
Shells per gun, main battery: 200

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0.98" / 25 mm 0.59" / 15 mm -
2nd: 0.59" / 15 mm 0.39" / 10 mm -
3rd: 0.59" / 15 mm 0.39" / 10 mm -

- Conning tower: 0.98" / 25 mm

Machinery:
Diesel Internal combustion motors,
Geared drive, 2 shafts, 1,750 shp / 1,306 Kw = 13.00 kts
Range 4,000nm at 13.00 kts
Bunker at max displacement = 314 tons

Complement:
229 - 299

Cost:
£0.915 million / $3.659 million

Distribution of weights at normal displacement:
Armament: 5 tons, 0.1 %
Armour: 11 tons, 0.3 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 6 tons, 0.2 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 5 tons, 0.1 %
Machinery: 43 tons, 1.2 %
Hull, fittings & equipment: 994 tons, 28.0 %
Fuel, ammunition & stores: 251 tons, 7.1 %
Miscellaneous weights: 2,250 tons, 63.3 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
5,655 lbs / 2,565 Kg = 254.2 x 3.5 " / 90 mm shells or 1.5 torpedoes
Stability (Unstable if below 1.00): 1.07
Metacentric height 2.1 ft / 0.6 m
Roll period: 14.8 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.01
Seaboat quality (Average = 1.00): 1.84

Hull form characteristics:
Hull has raised forecastle
and transom stern
Block coefficient: 0.606
Length to Beam Ratio: 6.45 : 1
'Natural speed' for length: 21.18 kts
Power going to wave formation at top speed: 32 %
Trim (Max stability = 0, Max steadiness = 100): 27
Bow angle (Positive = bow angles forward): 20.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 20.01 ft / 6.10 m
- Forecastle (20 %): 20.01 ft / 6.10 m (12.63 ft / 3.85 m aft of break)
- Mid (50 %): 12.63 ft / 3.85 m
- Quarterdeck (15 %): 12.63 ft / 3.85 m
- Stern: 12.63 ft / 3.85 m
- Average freeboard: 14.11 ft / 4.30 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 74.5 %
- Above water (accommodation/working, high = better): 134.4 %
Waterplane Area: 12,791 Square feet or 1,188 Square metres
Displacement factor (Displacement / loading): 149 %
Structure weight / hull surface area: 57 lbs/sq ft or 279 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.95
- Longitudinal: 1.54
- Overall: 1.00
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is excellent
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Has bow doors and beaching ramp
Can carry 212 troops instead of cargo/ vehicles

Misc Weight:
2,100 tons
50 tons cranes (1x 30 ton capacity), davits and 4x LCVP and handling gear
5 tons for air conditioning
5 tons for one M1946 RDF set
40 tons for berths for 40 Marines/ 20 passengers