WesWorld

Type: Escort & Minelayer

Displacement:
1,046 t light; 1,085 t standard; 1,251 t normal; 1,384 t full load

Dimensions:
Length overall / water x beam x draught
229.65 ft / 225.72 ft x 36.75 ft x 11.81 ft (normal load)
70.00 m / 68.80 m x 11.20 m x 3.60 m

Armament:
3 - 4.13" / 105 mm guns in single mounts, 35.32lbs / 16.02kg shells, 1936 Model
Breech loading guns in deck mounts with hoists
on centreline ends, majority aft
2 - 1.46" / 37.0 mm guns in one mount, 1.55lbs / 0.70kg shells, 1936 Model
Breech loading guns in deck mount
on centreline forward, 1 raised gun
2 - 1.46" / 37.0 mm guns in single mounts, 1.55lbs / 0.70kg shells, 1936 Model
Breech loading guns in deck mounts
on side, all amidships, 1 raised mount
8 - 0.79" / 20.0 mm guns (2x4 guns), 0.24lbs / 0.11kg shells, 1936 Model
Breech loading guns in deck mounts
on centreline ends, evenly spread, all raised mounts
2 - 0.79" / 20.0 mm guns in single mounts, 0.24lbs / 0.11kg shells, 1936 Model
Breech loading guns in deck mounts
on side, evenly spread
Weight of broadside 115 lbs / 52 kg
Shells per gun, main battery: 200

Armour:
- Armour deck: 0.79" / 20 mm

Machinery:
Diesel Internal combustion motors,
Geared drive, 2 shafts, 17,837 shp / 13,306 Kw = 28.00 kts
Range 8,750nm at 12.00 kts
Bunker at max displacement = 299 tons

Complement:
104 - 136

Cost:
£0.606 million / $2.426 million

Distribution of weights at normal displacement:
Armament: 14 tons, 1.1%
Armour: 80 tons, 6.4%
- Belts: 0 tons, 0.0%
- Torpedo bulkhead: 0 tons, 0.0%
- Armament: 0 tons, 0.0%
- Armour Deck: 80 tons, 6.4%
- Conning Tower: 0 tons, 0.0%
Machinery: 474 tons, 37.9%
Hull, fittings & equipment: 328 tons, 26.2%
Fuel, ammunition & stores: 205 tons, 16.4%
Miscellaneous weights: 150 tons, 12.0%

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
576 lbs / 261 Kg = 16.3 x 4.1 " / 105 mm shells or 0.4 torpedoes
Stability (Unstable if below 1.00): 1.11
Metacentric height 1.4 ft / 0.4 m
Roll period: 13.2 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.19
Seaboat quality (Average = 1.00): 0.74

Hull form characteristics:
Hull has low quarterdeck
and transom stern
Block coefficient: 0.447
Length to Beam Ratio: 6.14 : 1
'Natural speed' for length: 18.04 kts
Power going to wave formation at top speed: 76 %
Trim (Max stability = 0, Max steadiness = 100): 68
Bow angle (Positive = bow angles forward): 14.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 15.75 ft / 4.80 m
- Forecastle (20%): 15.75 ft / 4.80 m
- Mid (50%): 15.75 ft / 4.80 m
- Quarterdeck (15%): 11.81 ft / 3.60 m (15.75 ft / 4.80 m before break)
- Stern: 11.81 ft / 3.60 m
- Average freeboard: 15.16 ft / 4.62 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 144.7%
- Above water (accommodation/working, high = better): 158.1%
Waterplane Area: 5,482 Square feet or 509 Square metres
Displacement factor (Displacement / loading): 93%
Structure weight / hull surface area: 33 lbs/sq ft or 162 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 3.97
- Overall: 0.62
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is excellent
Poor seaboat, wet and uncomfortable, reduced performance in heavy weather





... comments are welcome, but don't hit me too much, i'm no ship designer

I have one thought - though it's mostly personal preference. For a ship of this size and type, 150 tons of miscellaneous weight seems excessive, unless you're carrying a floatplane: I'd cut it down to 75 tons and try to raise the freeboard to improve sea-keeping capabilities. I'd also make those 105mm guns DP, if you have that technology.

Otherwise, looks decent....

Looks like a German M-Class of 35 to me...?!

Quoted

Originally posted by HoOmAn
Looks like a German M-Class of 35 to me...?!

I think that's the K4, a former Belgian sloop/gunboat named Van-something(Van Kinsbergen? Can't remember)

Could be too. I thought she´s a bit large and high for a M-class but her overall appearance and layout shows many similarities... Not sure how much that drawing was modified.

Quoted

Originally posted by HoOmAn
Could be too. I thought she´s a bit large and high for a M-class but her overall appearance and layout shows many similarities... Not sure how much that drawing was modified.

As far as I can see, only the guns were changed, but I could be wrong.

Displacement:
1.047 t light; 1.085 t standard; 1.260 t normal; 1.399 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(229,66 ft / 225,72 ft) x 36,75 ft x (11,81 / 12,70 ft)
(70,00 m / 68,80 m) x 11,20 m x (3,60 / 3,87 m)

Armament:
3 - 4,13" / 105 mm 45,0 cal guns - 35,32lbs / 16,02kg shells, 200 per gun
Breech loading guns in deck and hoist mounts, 1936 Model
3 x Single mounts on centreline ends, majority aft
2 - 1,46" / 37,0 mm 45,0 cal guns - 1,55lbs / 0,70kg shells, 150 per gun
Anti-air guns in deck mount, 1936 Model
1 x Twin mount on centreline, forward deck forward
1 raised mount
2 - 1,46" / 37,0 mm 45,0 cal guns - 1,55lbs / 0,70kg shells, 150 per gun
Anti-air guns in deck mounts, 1936 Model
2 x Single mounts on sides forward
2 raised mounts
8 - 0,79" / 20,0 mm 45,0 cal guns - 0,24lbs / 0,11kg shells, 150 per gun
Machine guns in deck mounts, 1936 Model
2 x Quad mounts on centreline ends, evenly spread
2 double raised mounts
2 - 0,79" / 20,0 mm 45,0 cal guns - 0,24lbs / 0,11kg shells, 150 per gun
Machine guns in deck mounts, 1936 Model
2 x Single mounts on centreline, aft deck forward
Weight of broadside 115 lbs / 52 kg

Armour:
- Armoured deck - multiple decks: 0,79" / 20 mm For and Aft decks

- Conning towers: Forward 2,36" / 60 mm, Aft 0,00" / 0 mm

Machinery:
Diesel Internal combustion motors,
Geared drive, 2 shafts, 17.962 shp / 13.400 Kw = 28,00 kts
Range 6.500nm at 12,00 kts
Bunker at max displacement = 315 tons

Complement:
105 - 137

Cost:
£0,622 million / $2,489 million

Distribution of weights at normal displacement:
Armament: 32 tons, 2,5%
Armour: 72 tons, 5,7%
- Armour Deck: 66 tons, 5,2%
- Conning Tower: 6 tons, 0,5%
Machinery: 502 tons, 39,9%
Hull, fittings & equipment: 361 tons, 28,7%
Fuel, ammunition & stores: 212 tons, 16,9%
Miscellaneous weights: 80 tons, 6,4%
- Hull below water: 80 tons

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
735 lbs / 333 Kg = 20,8 x 4,1 " / 105 mm shells or 0,4 torpedoes
Stability (Unstable if below 1.00): 1,35
Metacentric height 1,9 ft / 0,6 m
Roll period: 11,2 seconds
Steadiness - As gun platform (Average = 50 %): 60 %
- Recoil effect (Restricted arc if above 1.00): 0,18
Seaboat quality (Average = 1.00): 0,85

Hull form characteristics:
Hull has low quarterdeck ,
a normal bow and large transom stern
Block coefficient (normal/deep): 0,450 / 0,465
Length to Beam Ratio: 6,14 : 1
'Natural speed' for length: 18,03 kts
Power going to wave formation at top speed: 76 %
Trim (Max stability = 0, Max steadiness = 100): 70
Bow angle (Positive = bow angles forward): 12,30 degrees
Stern overhang: 0,00 ft / 0,00 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 20,00%, 18,04 ft / 5,50 m, 16,73 ft / 5,10 m
- Forward deck: 30,00%, 16,73 ft / 5,10 m, 16,73 ft / 5,10 m
- Aft deck: 35,00%, 16,73 ft / 5,10 m, 16,73 ft / 5,10 m
- Quarter deck: 15,00%, 11,81 ft / 3,60 m, 11,81 ft / 3,60 m
- Average freeboard: 16,10 ft / 4,91 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 144,4%
- Above water (accommodation/working, high = better): 166,8%
Waterplane Area: 5.496 Square feet or 511 Square metres
Displacement factor (Displacement / loading): 100%
Structure weight / hull surface area: 36 lbs/sq ft or 178 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,54
- Longitudinal: 5,31
- Overall: 0,68
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is excellent
Poor seaboat, wet and uncomfortable, reduced performance in heavy weather


reduce Misc. Weight
Increase Freeboard