Originally posted by AdmKuznetsov
since they have torpedos:
G. VESSELS NOT SUBJECT TO LIMITATIONS IN NUMBER AND/OR TONNAGE
OUCH!!!! damn...I wanted to keep those three torpedo tubes on board...the main purpose of those ships is to give the navy a long-range merchant escort with great ASW and some good AA capability, but the torpedoes meant a good deal of disuasory force if a raider happens to appear...
Well, given that I must erase them, I've improved the performance of the ship in the other two departments: AA and Anti-ship guns. AA battery has increased by 30%, and I've put a third 125mm DP gun on her. Range has been increased too.
Z25, Dutch Destroyer ASW Escort laid down 1909 (Engine 1929)
Displacement:
1.078 t light; 1.156 t standard; 1.735 t normal; 2.199 t full load
Dimensions: Length overall / water x beam x draught
300,10 ft / 295,28 ft x 29,86 ft x 16,40 ft (normal load)
91,47 m / 90,00 m x 9,10 m x 5,00 m
Armament:
3 - 4,92" / 125 mm guns in single mounts, 59,59lbs / 27,03kg shells, 1929 Model
Dual purpose guns in deck mounts
on centreline ends, majority forward, 1 raised mount
12 - 1,57" / 40,0 mm guns (6x2 guns), 1,95lbs / 0,88kg shells, 1929 Model
Anti-aircraft guns in deck mounts
on side, all amidships
12 - 0,79" / 20,0 mm guns (6x2 guns), 0,24lbs / 0,11kg shells, 1929 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
Weight of broadside 205 lbs / 93 kg
Shells per gun, main battery: 350
Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0,79" / 20 mm 0,39" / 10 mm -
2nd: 0,39" / 10 mm - -
3rd: 0,39" / 10 mm - -
- Conning tower: 0,98" / 25 mm
Machinery:
Oil fired boilers, steam turbines,
Direct drive, 2 shafts, 11.655 shp / 8.695 Kw = 24,00 kts
Range 12.500nm at 15,00 kts
Bunker at max displacement = 1.043 tons
Complement:
133 - 174
Cost:
£0,109 million / $0,437 million
Distribution of weights at normal displacement:
Armament: 26 tons, 1,5 %
Armour: 11 tons, 0,6 %
- Belts: 0 tons, 0,0 %
- Torpedo bulkhead: 0 tons, 0,0 %
- Armament: 8 tons, 0,5 %
- Armour Deck: 0 tons, 0,0 %
- Conning Tower: 3 tons, 0,2 %
Machinery: 358 tons, 20,6 %
Hull, fittings & equipment: 483 tons, 27,8 %
Fuel, ammunition & stores: 658 tons, 37,9 %
Miscellaneous weights: 200 tons, 11,5 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
1.789 lbs / 812 Kg = 30,0 x 4,9 " / 125 mm shells or 0,7 torpedoes
Stability (Unstable if below 1.00): 1,19
Metacentric height 1,1 ft / 0,3 m
Roll period: 11,8 seconds
Steadiness - As gun platform (Average = 50 %): 72 %
- Recoil effect (Restricted arc if above 1.00): 0,25
Seaboat quality (Average = 1.00): 1,52
Hull form characteristics:
Hull has a flush deck
Block coefficient: 0,420
Length to Beam Ratio: 9,89 : 1
'Natural speed' for length: 17,18 kts
Power going to wave formation at top speed: 55 %
Trim (Max stability = 0, Max steadiness = 100): 47
Bow angle (Positive = bow angles forward): 10,00 degrees
Stern overhang: 1,64 ft / 0,50 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 18,04 ft / 5,50 m
- Forecastle (20 %): 11,48 ft / 3,50 m
- Mid (55 %): 11,48 ft / 3,50 m
- Quarterdeck (15 %): 11,48 ft / 3,50 m
- Stern: 11,48 ft / 3,50 m
- Average freeboard: 12,01 ft / 3,66 m
Ship tends to be wet forward
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 92,9 %
- Above water (accommodation/working, high = better): 90,4 %
Waterplane Area: 5.496 Square feet or 511 Square metres
Displacement factor (Displacement / loading): 153 %
Structure weight / hull surface area: 42 lbs/sq ft or 203 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,76
- Longitudinal: 2,58
- Overall: 0,86
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