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Wednesday, November 1st 2006, 12:59am

Flower Class Sloop


Flower, Denmark Sloop laid down 1929

K.D.M. Rose
K.D.M. Lily
K.D.M. Violet
K.D.M. Daisy
K.D.M. Carnation
K.D.M. Bluebell
K.D.M. Daffodil
K.D.M. Tulip
K.D.M. Marigold
K.D.M. Lavender
K.D.M. Orchid
K.D.M. Fuschia
K.D.M. Jasmine
K.D.M. Nigella
K.D.M. Dahlia
K.D.M. Sunflower
K.D.M. Phlox
K.D.M. Cornflower
K.D.M. Anenome

Displacement:
1,185 t light; 1,252 t standard; 1,501 t normal; 1,700 t full load

Dimensions: Length overall / water x beam x draught
293.97 ft / 280.00 ft x 32.00 ft x 11.00 ft (normal load)
89.60 m / 85.34 m x 9.75 m x 3.35 m

Armament:
4 - 5.12" / 130 mm guns (2x2 guns), 67.03lbs / 30.40kg shells, 1927 Model
Breech loading guns in deck mounts with hoists
on centreline, all forward, 1 raised mount - superfiring
4 - 2.24" / 57.0 mm guns (2x2 guns), 5.65lbs / 2.56kg shells, 1927 Model
Dual purpose guns in deck mounts with hoists
on centreline, all aft, 1 raised mount - superfiring
4 - 2.24" / 57.0 mm guns (2x2 guns), 5.65lbs / 2.56kg shells, 1927 Model
Dual purpose guns in deck mounts with hoists
on side, all amidships
8 - 0.79" / 20.0 mm guns (4x2 guns), 0.24lbs / 0.11kg shells, 1927 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 315 lbs / 143 kg
Shells per gun, main battery: 200

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.97" / 50 mm 0.98" / 25 mm -
2nd: 0.79" / 20 mm 0.79" / 20 mm -
3rd: 0.79" / 20 mm 0.79" / 20 mm -
4th: 0.79" / 20 mm 0.79" / 20 mm -

- Conning tower: 1.97" / 50 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 11,607 shp / 8,659 Kw = 24.00 kts
Range 10,000nm at 12.00 kts
Bunker at max displacement = 447 tons

Complement:
119 - 156

Cost:
£0.498 million / $1.992 million

Distribution of weights at normal displacement:
Armament: 39 tons, 2.6 %
Armour: 34 tons, 2.3 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 29 tons, 1.9 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 6 tons, 0.4 %
Machinery: 356 tons, 23.8 %
Hull, fittings & equipment: 655 tons, 43.6 %
Fuel, ammunition & stores: 316 tons, 21.1 %
Miscellaneous weights: 100 tons, 6.7 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
1,734 lbs / 787 Kg = 25.9 x 5.1 " / 130 mm shells or 0.6 torpedoes
Stability (Unstable if below 1.00): 1.03
Metacentric height 1.0 ft / 0.3 m
Roll period: 13.8 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.88
Seaboat quality (Average = 1.00): 1.21

Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0.533
Length to Beam Ratio: 8.75 : 1
'Natural speed' for length: 16.73 kts
Power going to wave formation at top speed: 62 %
Trim (Max stability = 0, Max steadiness = 100): 58
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: 19.00 ft / 5.79 m
- Forecastle (20 %): 17.00 ft / 5.18 m
- Mid (60 %): 16.00 ft / 4.88 m (8.00 ft / 2.44 m aft of break)
- Quarterdeck (15 %): 8.00 ft / 2.44 m
- Stern: 8.00 ft / 2.44 m
- Average freeboard: 13.36 ft / 4.07 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 105.6 %
- Above water (accommodation/working, high = better): 130.3 %
Waterplane Area: 6,154 Square feet or 572 Square metres
Displacement factor (Displacement / loading): 129 %
Structure weight / hull surface area: 57 lbs/sq ft or 280 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.87
- Longitudinal: 3.35
- Overall: 1.00
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

60 Depth Charges carried

This post has been edited 4 times, last edit by "Commodore Green" (Aug 31st 2011, 9:55pm)


2

Thursday, June 12th 2008, 2:45pm


Transfered to Irish Naval Service

Tree Class Sloop laid down 1924

Vessels-
K.D.M. Ask
K.D.M. Asp
K.D.M. Bog


Displacement:
913 t light; 957 t standard; 1,191 t normal; 1,373 t full load
Loading submergence 155 tons/feet

Dimensions:
280.00 ft x 33.00 ft x 10.00 ft (normal load)
85.34 m x 10.06 m x 3.05 m

Armament:
3 - 5.12" / 130 mm guns
6 - 2.24" / 57 mm AA guns
12 - 0.79" / 20 mm guns
Weight of broadside 238 lbs / 108 kg

Armour:
Main gun shields 1.00" / 25 mm, AA gun shields 0.75" / 19 mm, Light gun shields 0.50" / 13 mm

Machinery:
Diesel Internal combustion motors,
Geared drive, 2 shafts, 9,669 shp / 7,213 Kw = 24.00 kts
Range 10,000nm at 12.00 kts

Complement:
101 - 131

Cost:
£0.314 million / $1.255 million

Distribution of weights at normal displacement:
Armament: 30 tons, 2.5 %
Armour: 8 tons, 0.7 %
Belts: 0 tons, 0.0 %, Armament: 8 tons, 0.7 %, Armour Deck: 0 tons, 0.0 %
Conning Tower: 0 tons, 0.0 %, Torpedo bulkhead: 0 tons, 0.0 %
Machinery: 318 tons, 26.7 %
Hull, fittings & equipment: 507 tons, 42.6 %
Fuel, ammunition & stores: 277 tons, 23.3 %
Miscellaneous weights: 50 tons, 4.2 %

Metacentric height 1.3

Remarks:
Hull space for machinery, storage & compartmentation is adequate
Room for accommodation & workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform
Good seaboat, rides out heavy weather easily

Estimated overall survivability and seakeeping ability:
Relative margin of stability: 1.19
Shellfire needed to sink: 1,376 lbs / 624 Kg = 20.5 x 5.1 " / 130 mm shells
(Approx weight of penetrating shell hits needed to sink ship excluding critical hits)
Torpedoes needed to sink: 0.6
(Approx number of typical torpedo hits needed to sink ship)
Relative steadiness as gun platform: 70 %
(Average = 50 %)
Relative rocking effect from firing to beam: 0.24
Relative quality as seaboat: 1.21

Hull form characteristics:
Block coefficient: 0.451
Sharpness coefficient: 0.33
Hull speed coefficient 'M': 8.07
'Natural speed' for length: 16.73 kts
Power going to wave formation at top speed: 60 %
Trim: 58
(Maximise stabilty/flotation = 0, Maximise steadiness/seakeeping = 100)

Estimated hull characteristics & strength:
Underwater volume absorbed by magazines and engineering spaces: 110.7 %
Relative accommodation and working space: 125.2 %
(Average = 100%)
Displacement factor: 128 %
(Displacement relative to loading factors)
Relative cross-sectional hull strength: 0.92
(Structure weight / hull surface area: 54 lbs / square foot or 261 Kg / square metre)
Relative longitudinal hull strength: 2.13
(for 12.25 ft / 3.73 m average freeboard, freeboard adjustment 2.36 ft)
Relative composite hull strength: 1.00

Class designed to be a convoy escort / patrol ship
Anti-Submarine weaponry as follows-
2 depth charge rails & 4 depth charge launchers - 80 depth charges carried

This post has been edited 3 times, last edit by "Commodore Green" (Aug 31st 2011, 9:55pm)


3

Tuesday, November 8th 2011, 1:21am

Shrub Class

Shrub Class, Denmark Sloop laid down 1940

Displacement:
1,779 t light; 1,877 t standard; 2,158 t normal; 2,383 t full load

Dimensions: Length overall / water x beam x draught
355.99 ft / 340.00 ft x 38.00 ft x 11.00 ft (normal load)
108.51 m / 103.63 m x 11.58 m x 3.35 m

Armament:
8 - 4.72" / 120 mm guns (4x2 guns), 52.72lbs / 23.91kg shells, 1940 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), 5.65lbs / 2.56kg shells, 1940 Model
Dual purpose guns in deck mounts with hoists
on side, all amidships, 2 raised mounts - superfiring
12 - 0.79" / 20.0 mm guns (6x2 guns), 0.24lbs / 0.11kg shells, 1940 Model
Dual purpose guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 470 lbs / 213 kg
Shells per gun, main battery: 200

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 0.98" / 25 mm 188.65 ft / 57.50 m 8.20 ft / 2.50 m
Ends: Unarmoured
Main Belt covers 85 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.97" / 50 mm 0.98" / 25 mm 0.98" / 25 mm
2nd: 0.79" / 20 mm 0.79" / 20 mm -
3rd: 0.79" / 20 mm 0.79" / 20 mm -

- Armour deck: 0.98" / 25 mm, Conning tower: 1.97" / 50 mm

Machinery:
Diesel Internal combustion motors,
Geared drive, 2 shafts, 13,298 shp / 9,920 Kw = 24.00 kts
Range 10,000nm at 12.00 kts
Bunker at max displacement = 506 tons

Complement:
157 - 205

Cost:
£0.968 million / $3.873 million

Distribution of weights at normal displacement:
Armament: 59 tons, 2.7 %
Armour: 280 tons, 13.0 %
- Belts: 66 tons, 3.1 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 46 tons, 2.1 %
- Armour Deck: 161 tons, 7.5 %
- Conning Tower: 7 tons, 0.3 %
Machinery: 356 tons, 16.5 %
Hull, fittings & equipment: 905 tons, 41.9 %
Fuel, ammunition & stores: 379 tons, 17.6 %
Miscellaneous weights: 180 tons, 8.3 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
3,195 lbs / 1,449 Kg = 60.6 x 4.7 " / 120 mm shells or 1.0 torpedoes
Stability (Unstable if below 1.00): 1.05
Metacentric height 1.3 ft / 0.4 m
Roll period: 14.1 seconds
Steadiness - As gun platform (Average = 50 %): 71 %
- Recoil effect (Restricted arc if above 1.00): 0.65
Seaboat quality (Average = 1.00): 1.20

Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0.531
Length to Beam Ratio: 8.95 : 1
'Natural speed' for length: 18.44 kts
Power going to wave formation at top speed: 57 %
Trim (Max stability = 0, Max steadiness = 100): 59
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: 22.50 ft / 6.86 m
- Forecastle (20 %): 18.00 ft / 5.49 m
- Mid (40 %): 18.00 ft / 5.49 m (10.00 ft / 3.05 m aft of break)
- Quarterdeck (15 %): 10.00 ft / 3.05 m
- Stern: 10.00 ft / 3.05 m
- Average freeboard: 13.56 ft / 4.13 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 84.8 %
- Above water (accommodation/working, high = better): 134.0 %
Waterplane Area: 8,862 Square feet or 823 Square metres
Displacement factor (Displacement / loading): 131 %
Structure weight / hull surface area: 63 lbs/sq ft or 310 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.93
- Longitudinal: 1.82
- Overall: 1.00
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

60 Depth Charges carried
Radar fitted

This post has been edited 1 times, last edit by "Commodore Green" (Nov 8th 2011, 1:24am)