Image by thesmilingassassin and modified by Brockpaine.
Province-class, Irish Destroyer laid down 1937
Displacement:
1,655 t light; 1,747 t standard; 1,981 t normal; 2,168 t full load
Dimensions: Length overall / water x beam x draught
394.37 ft / 385.00 ft x 36.00 ft x 12.20 ft (normal load)
120.20 m / 117.35 m x 10.97 m x 3.72 m
Armament:
8 - 4.50" / 114 mm guns (4x2 guns), 45.00lbs / 20.41kg shells, 1937 Model
Dual purpose guns in deck mounts
on centreline ends, evenly spread, 2 raised mounts - superfiring
4 - 1.57" / 40.0 mm guns (2x2 guns), 1.95lbs / 0.88kg shells, 1937 Model
Anti-aircraft guns in deck mounts
on side, all amidships, all raised mounts - superfiring
2 - 0.79" / 20.0 mm guns (1x2 guns), 0.24lbs / 0.11kg shells, 1937 Model
Anti-aircraft guns in deck mount
on side, all raised guns
4 - 0.79" / 20.0 mm guns (2x2 guns), 0.24lbs / 0.11kg shells, 1937 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
6 - 0.66" / 16.8 mm guns in single mounts, 0.14lbs / 0.06kg shells, 1937 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 370 lbs / 168 kg
Shells per gun, main battery: 250
10 - 21.0" / 533.4 mm above water torpedoes
Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0.98" / 25 mm 0.98" / 25 mm -
- Conning tower: 1.57" / 40 mm
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 37,316 shp / 27,837 Kw = 33.75 kts
Range 5,400nm at 15.00 kts
Bunker at max displacement = 421 tons
Complement:
147 - 192
Cost:
£1.211 million / $4.842 million
Distribution of weights at normal displacement:
Armament: 47 tons, 2.4 %
Armour: 29 tons, 1.5 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 24 tons, 1.2 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 5 tons, 0.3 %
Machinery: 891 tons, 45.0 %
Hull, fittings & equipment: 623 tons, 31.5 %
Fuel, ammunition & stores: 326 tons, 16.5 %
Miscellaneous weights: 65 tons, 3.3 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
718 lbs / 326 Kg = 15.8 x 4.5 " / 114 mm shells or 0.4 torpedoes
Stability (Unstable if below 1.00): 1.35
Metacentric height 1.8 ft / 0.6 m
Roll period: 11.2 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.31
Seaboat quality (Average = 1.00): 1.32
Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0.410
Length to Beam Ratio: 10.69 : 1
'Natural speed' for length: 22.54 kts
Power going to wave formation at top speed: 65 %
Trim (Max stability = 0, Max steadiness = 100): 53
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: 25.75 ft / 7.85 m
- Forecastle (20 %): 20.50 ft / 6.25 m
- Mid (50 %): 20.50 ft / 6.25 m (12.00 ft / 3.66 m aft of break)
- Quarterdeck (15 %): 12.00 ft / 3.66 m
- Stern: 12.00 ft / 3.66 m
- Average freeboard: 16.67 ft / 5.08 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 168.0 %
- Above water (accommodation/working, high = better): 92.4 %
Waterplane Area: 8,909 Square feet or 828 Square metres
Displacement factor (Displacement / loading): 78 %
Structure weight / hull surface area: 35 lbs/sq ft or 169 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 2.22
- Overall: 0.58
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform
Good seaboat, rides out heavy weather easily
[SIZE=3]
Ships in Class:[/SIZE]
- LÉ
Munster (S2) - 1937
- LÉ
Ulster (S3) - 1938
- LÉ
Leinster (S4) - 1938
[SIZE=3]
Notes:[/SIZE]
The remaining three
Province-class destroyers were built to a slightly modified design compared to the class leader
Connacht. While
Connacht carried the Atlantean-made 5.12" (130mm) dual-purpose gun, the
Munster,
Ulster, and
Leinster were ordered with the British-manufactured 4.5" (114mm) dual-purpose gun. This change allowed the INS to save weight while increasing ammunition stowage, and answered critics concerned about ammunition availability during times of crisis. The ships are otherwise identical.