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X-1 though X-32 - Laid down 1925

X-201 through X-216 - Laid down 1941-42

SLC#1 through SCL#10 - Laid down 1941-42

This post has been edited 5 times, last edit by "Sachmle" (Dec 7th 2012, 12:35am)

Displacement:

192 t light; 196 t standard; 200 t normal; 203 t full load

Dimensions: Length overall / water x beam x draught

107.09 ft / 105.50 ft x 19.25 ft x 5.75 ft (normal load)

32.64 m / 32.16 m x 5.87 m x 1.75 m

Armament:

4 - 0.31" / 8.0 mm guns in single mounts, 0.02lbs / 0.01kg shells, 1925 Model

Machine guns in deck mounts

on side, all forward

Weight of broadside 0 lbs / 0 kg

Shells per gun, main battery: 1,500

Machinery:

Petrol Internal combustion motors,

Direct drive, 1 shaft, 200 shp / 149 Kw = 10.58 kts

Range 1,100nm at 7.50 kts

Bunker at max displacement = 7 tons

Complement:

26 - 34

Cost:

£0.025 million / $0.100 million

Distribution of weights at normal displacement:

Armament: 0 tons, 0.0 %

Machinery: 6 tons, 3.2 %

Hull, fittings & equipment: 85 tons, 42.7 %

Fuel, ammunition & stores: 8 tons, 4.0 %

Miscellaneous weights: 100 tons, 50.0 %

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship):

404 lbs / 183 Kg = 25,864.2 x 0.3 " / 8 mm shells or 0.5 torpedoes

Stability (Unstable if below 1.00): 1.00

Metacentric height 0.4 ft / 0.1 m

Roll period: 12.4 seconds

Steadiness - As gun platform (Average = 50 %): 40 %

- Recoil effect (Restricted arc if above 1.00): 0.00

Seaboat quality (Average = 1.00): 1.60

Hull form characteristics:

Hull has raised forecastle

Block coefficient: 0.599

Length to Beam Ratio: 5.48 : 1

'Natural speed' for length: 10.27 kts

Power going to wave formation at top speed: 52 %

Trim (Max stability = 0, Max steadiness = 100): 20

Bow angle (Positive = bow angles forward): 10.00 degrees

Stern overhang: 0.00 ft / 0.00 m

Freeboard (% = measuring location as a percentage of overall length):

- Stem: 9.00 ft / 2.74 m

- Forecastle (20 %): 8.50 ft / 2.59 m (8.00 ft / 2.44 m aft of break)

- Mid (50 %): 8.00 ft / 2.44 m

- Quarterdeck (15 %): 8.00 ft / 2.44 m

- Stern: 8.00 ft / 2.44 m

- Average freeboard: 8.14 ft / 2.48 m

Ship tends to be wet forward

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 65.8 %

- Above water (accommodation/working, high = better): 85.1 %

Waterplane Area: 1,451 Square feet or 135 Square metres

Displacement factor (Displacement / loading): 177 %

Structure weight / hull surface area: 33 lbs/sq ft or 159 Kg/sq metre

Hull strength (Relative):

- Cross-sectional: 1.19

- Longitudinal: 8.43

- Overall: 1.45

Hull space for machinery, storage, compartmentation is excellent

Room for accommodation and workspaces is cramped

Excellent seaboat, comfortable, can fire her guns in the heaviest weather

X-200, Greek X Lighter laid down 1941-42

*X-201* through *X-216*

Displacement:

180 t light; 187 t standard; 200 t normal; 210 t full load

Dimensions: Length overall / water x beam x draught

101.76 ft / 100.00 ft x 23.80 ft x 5.25 ft (normal load)

31.02 m / 30.48 m x 7.25 m x 1.60 m

Armament:

4 - 0.98" / 25.0 mm guns in single mounts, 0.50lbs / 0.23kg shells, 1941 Model

Anti-aircraft guns in deck mounts

on side, evenly spread

Aft Main mounts separated by engine room

2 - 0.50" / 12.7 mm guns in single mounts, 0.06lbs / 0.03kg shells, 1941 Model

Machine guns in deck mounts

on side, all forward

Weight of broadside 2 lbs / 1 kg

Shells per gun, main battery: 2,500

Armour:

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)

Main: 0.50" / 13 mm - -

2nd: 0.50" / 13 mm - -

Machinery:

Diesel Internal combustion motors,

Direct drive, 1 shaft, 149 shp / 112 Kw = 9.70 kts

Range 2,500nm at 9.70 kts

Bunker at max displacement = 23 tons

Complement:

26 - 34

Cost:

£0.044 million / $0.175 million

Distribution of weights at normal displacement:

Armament: 0 tons, 0.1 %

Armour: 0 tons, 0.2 %

- Belts: 0 tons, 0.0 %

- Torpedo bulkhead: 0 tons, 0.0 %

- Armament: 0 tons, 0.2 %

- Armour Deck: 0 tons, 0.0 %

- Conning Tower: 0 tons, 0.0 %

Machinery: 4 tons, 2.0 %

Hull, fittings & equipment: 75 tons, 37.6 %

Fuel, ammunition & stores: 20 tons, 10.0 %

Miscellaneous weights: 100 tons, 50.0 %

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship):

516 lbs / 234 Kg = 1,082.4 x 1.0 " / 25 mm shells or 0.6 torpedoes

Stability (Unstable if below 1.00): 1.11

Metacentric height 0.7 ft / 0.2 m

Roll period: 11.9 seconds

Steadiness - As gun platform (Average = 50 %): 50 %

- Recoil effect (Restricted arc if above 1.00): 0.01

Seaboat quality (Average = 1.00): 2.00

Hull form characteristics:

Hull has a flush deck

Block coefficient: 0.560

Length to Beam Ratio: 4.20 : 1

'Natural speed' for length: 10.00 kts

Power going to wave formation at top speed: 50 %

Trim (Max stability = 0, Max steadiness = 100): 25

Bow angle (Positive = bow angles forward): 10.00 degrees

Stern overhang: 0.00 ft / 0.00 m

Freeboard (% = measuring location as a percentage of overall length):

- Stem: 10.00 ft / 3.05 m

- Forecastle (20 %): 10.00 ft / 3.05 m

- Mid (50 %): 9.00 ft / 2.74 m

- Quarterdeck (15 %): 9.00 ft / 2.74 m

- Stern: 9.00 ft / 2.74 m

- Average freeboard: 9.35 ft / 2.85 m

Ship tends to be wet forward

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 64.3 %

- Above water (accommodation/working, high = better): 110.2 %

Waterplane Area: 1,629 Square feet or 151 Square metres

Displacement factor (Displacement / loading): 181 %

Structure weight / hull surface area: 28 lbs/sq ft or 136 Kg/sq metre

Hull strength (Relative):

- Cross-sectional: 0.89

- Longitudinal: 8.45

- Overall: 1.11

Hull space for machinery, storage, compartmentation is excellent

Room for accommodation and workspaces is adequate

Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Displacement:

180 t light; 187 t standard; 200 t normal; 210 t full load

Dimensions: Length overall / water x beam x draught

101.76 ft / 100.00 ft x 23.80 ft x 5.25 ft (normal load)

31.02 m / 30.48 m x 7.25 m x 1.60 m

Armament:

4 - 0.98" / 25.0 mm guns in single mounts, 0.50lbs / 0.23kg shells, 1941 Model

Anti-aircraft guns in deck mounts

on side, evenly spread

Aft Main mounts separated by engine room

2 - 0.50" / 12.7 mm guns in single mounts, 0.06lbs / 0.03kg shells, 1941 Model

Machine guns in deck mounts

on side, all forward

Weight of broadside 2 lbs / 1 kg

Shells per gun, main battery: 2,500

Armour:

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)

Main: 0.50" / 13 mm - -

2nd: 0.50" / 13 mm - -

Machinery:

Diesel Internal combustion motors,

Direct drive, 1 shaft, 149 shp / 112 Kw = 9.70 kts

Range 2,500nm at 9.70 kts

Bunker at max displacement = 23 tons

Complement:

26 - 34

Cost:

£0.044 million / $0.175 million

Distribution of weights at normal displacement:

Armament: 0 tons, 0.1 %

Armour: 0 tons, 0.2 %

- Belts: 0 tons, 0.0 %

- Torpedo bulkhead: 0 tons, 0.0 %

- Armament: 0 tons, 0.2 %

- Armour Deck: 0 tons, 0.0 %

- Conning Tower: 0 tons, 0.0 %

Machinery: 4 tons, 2.0 %

Hull, fittings & equipment: 75 tons, 37.6 %

Fuel, ammunition & stores: 20 tons, 10.0 %

Miscellaneous weights: 100 tons, 50.0 %

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship):

516 lbs / 234 Kg = 1,082.4 x 1.0 " / 25 mm shells or 0.6 torpedoes

Stability (Unstable if below 1.00): 1.11

Metacentric height 0.7 ft / 0.2 m

Roll period: 11.9 seconds

Steadiness - As gun platform (Average = 50 %): 50 %

- Recoil effect (Restricted arc if above 1.00): 0.01

Seaboat quality (Average = 1.00): 2.00

Hull form characteristics:

Hull has a flush deck

Block coefficient: 0.560

Length to Beam Ratio: 4.20 : 1

'Natural speed' for length: 10.00 kts

Power going to wave formation at top speed: 50 %

Trim (Max stability = 0, Max steadiness = 100): 25

Bow angle (Positive = bow angles forward): 10.00 degrees

Stern overhang: 0.00 ft / 0.00 m

Freeboard (% = measuring location as a percentage of overall length):

- Stem: 10.00 ft / 3.05 m

- Forecastle (20 %): 10.00 ft / 3.05 m

- Mid (50 %): 9.00 ft / 2.74 m

- Quarterdeck (15 %): 9.00 ft / 2.74 m

- Stern: 9.00 ft / 2.74 m

- Average freeboard: 9.35 ft / 2.85 m

Ship tends to be wet forward

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 64.3 %

- Above water (accommodation/working, high = better): 110.2 %

Waterplane Area: 1,629 Square feet or 151 Square metres

Displacement factor (Displacement / loading): 181 %

Structure weight / hull surface area: 28 lbs/sq ft or 136 Kg/sq metre

Hull strength (Relative):

- Cross-sectional: 0.89

- Longitudinal: 8.45

- Overall: 1.11

Hull space for machinery, storage, compartmentation is excellent

Room for accommodation and workspaces is adequate

Excellent seaboat, comfortable, can fire her guns in the heaviest weather

This post has been edited 1 times, last edit by "Sachmle" (Dec 7th 2012, 12:35am)

SLC-65, Greek Small Landing Craft laid down 1941-42

*SLC#1* through *SLC#10*

Displacement:

65 t light; 66 t standard; 68 t normal; 69 t full load

Dimensions: Length overall / water x beam x draught

64.19 ft / 63.32 ft x 19.49 ft x 3.28 ft (normal load)

19.56 m / 19.30 m x 5.94 m x 1.00 m

Machinery:

Diesel Internal combustion motors,

Direct drive, 2 shafts, 252 shp / 188 Kw = 12.00 kts

Range 200nm at 12.00 kts

Bunker at max displacement = 3 tons

Complement:

11 - 15

Cost:

£0.020 million / $0.079 million

Distribution of weights at normal displacement:

Armament: 0 tons, 0.0 %

Machinery: 7 tons, 9.8 %

Hull, fittings & equipment: 21 tons, 31.4 %

Fuel, ammunition & stores: 3 tons, 4.4 %

Miscellaneous weights: 37 tons, 54.4 %

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship):

99 lbs / 45 Kg = 0.9 x 6 " / 152 mm shells or 0.2 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 %): 24 %

- Recoil effect (Restricted arc if above 1.00): 0.00

Seaboat quality (Average = 1.00): 0.20

Hull form characteristics:

Hull has a flush deck

Block coefficient: 0.588

Length to Beam Ratio: 3.25 : 1

'Natural speed' for length: 7.96 kts

Power going to wave formation at top speed: 74 %

Trim (Max stability = 0, Max steadiness = 100): 57

Bow angle (Positive = bow angles forward): 10.00 degrees

Stern overhang: 0.00 ft / 0.00 m

Freeboard (% = measuring location as a percentage of overall length):

- Stem: 4.92 ft / 1.50 m

- Forecastle (10 %): 4.10 ft / 1.25 m

- Mid (20 %): 4.10 ft / 1.25 m

- Quarterdeck (10 %): 4.10 ft / 1.25 m

- Stern: 4.10 ft / 1.25 m

- Average freeboard: 4.13 ft / 1.26 m

Ship tends to be wet forward

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 91.2 %

- Above water (accommodation/working, high = better): 63.4 %

Waterplane Area: 892 Square feet or 83 Square metres

Displacement factor (Displacement / loading): 135 %

Structure weight / hull surface area: 19 lbs/sq ft or 94 Kg/sq metre

Hull strength (Relative):

- Cross-sectional: 0.93

- Longitudinal: 3.66

- Overall: 1.06

Hull space for machinery, storage, compartmentation is adequate

Room for accommodation and workspaces is cramped

Ship has quick, lively roll, not a steady gun platform

Caution: Lacks seaworthiness - very limited seakeeping ability

Displacement:

65 t light; 66 t standard; 68 t normal; 69 t full load

Dimensions: Length overall / water x beam x draught

64.19 ft / 63.32 ft x 19.49 ft x 3.28 ft (normal load)

19.56 m / 19.30 m x 5.94 m x 1.00 m

Machinery:

Diesel Internal combustion motors,

Direct drive, 2 shafts, 252 shp / 188 Kw = 12.00 kts

Range 200nm at 12.00 kts

Bunker at max displacement = 3 tons

Complement:

11 - 15

Cost:

£0.020 million / $0.079 million

Distribution of weights at normal displacement:

Armament: 0 tons, 0.0 %

Machinery: 7 tons, 9.8 %

Hull, fittings & equipment: 21 tons, 31.4 %

Fuel, ammunition & stores: 3 tons, 4.4 %

Miscellaneous weights: 37 tons, 54.4 %

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship):

99 lbs / 45 Kg = 0.9 x 6 " / 152 mm shells or 0.2 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 %): 24 %

- Recoil effect (Restricted arc if above 1.00): 0.00

Seaboat quality (Average = 1.00): 0.20

Hull form characteristics:

Hull has a flush deck

Block coefficient: 0.588

Length to Beam Ratio: 3.25 : 1

'Natural speed' for length: 7.96 kts

Power going to wave formation at top speed: 74 %

Trim (Max stability = 0, Max steadiness = 100): 57

Bow angle (Positive = bow angles forward): 10.00 degrees

Stern overhang: 0.00 ft / 0.00 m

Freeboard (% = measuring location as a percentage of overall length):

- Stem: 4.92 ft / 1.50 m

- Forecastle (10 %): 4.10 ft / 1.25 m

- Mid (20 %): 4.10 ft / 1.25 m

- Quarterdeck (10 %): 4.10 ft / 1.25 m

- Stern: 4.10 ft / 1.25 m

- Average freeboard: 4.13 ft / 1.26 m

Ship tends to be wet forward

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 91.2 %

- Above water (accommodation/working, high = better): 63.4 %

Waterplane Area: 892 Square feet or 83 Square metres

Displacement factor (Displacement / loading): 135 %

Structure weight / hull surface area: 19 lbs/sq ft or 94 Kg/sq metre

Hull strength (Relative):

- Cross-sectional: 0.93

- Longitudinal: 3.66

- Overall: 1.06

Hull space for machinery, storage, compartmentation is adequate

Room for accommodation and workspaces is cramped

Ship has quick, lively roll, not a steady gun platform

Caution: Lacks seaworthiness - very limited seakeeping ability

This post has been edited 1 times, last edit by "Sachmle" (Dec 7th 2012, 12:36am)

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