Smaller crafts

[P3D]

A coastal minelayer/sweeper of the Orange Navy - equipped with some experimental oil-firing boilers. Dated 1906. ONly one built.
The standard coal-fired version has 3000nm range and 80t misc. weight.

Displacement:
   500 t light; 517 t standard; 587 t normal; 643 t full load

Dimensions: Length overall / water x beam x draught
   223.10 ft / 223.10 ft x 27.89 ft x 5.91 ft (normal load)
   68.00 m / 68.00 m x 8.50 m  x 1.80 m

Armament:
      2 - 3.94" / 100 mm guns in single mounts, 30.51lbs / 13.84kg shells, 1904 Model
     Quick firing guns in deck mounts
     on centreline ends, evenly spread
      2 - 0.39" / 10.0 mm guns in single mounts, 0.03lbs / 0.01kg shells, 1904 Model
     Machine guns in deck mounts
     on side, all amidships
   Weight of broadside 61 lbs / 28 kg
   Shells per gun, main battery: 150

Machinery:
   Oil fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 1,150 ihp / 858 Kw = 15.00 kts
   Range 4,000nm at 10.00 kts
   Bunker at max displacement = 126 tons

Complement:
   59 - 77

Cost:
   £0.045 million / $0.181 million

Distribution of weights at normal displacement:
   Armament: 8 tons, 1.3 %
   Machinery: 151 tons, 25.8 %
   Hull, fittings & equipment: 243 tons, 41.4 %
   Fuel, ammunition & stores: 87 tons, 14.8 %
   Miscellaneous weights: 98 tons, 16.7 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     838 lbs / 380 Kg = 27.5 x 3.9 " / 100 mm shells or 0.5 torpedoes
   Stability (Unstable if below 1.00): 1.29
   Metacentric height 1.2 ft / 0.4 m
   Roll period: 10.9 seconds
   Steadiness   - As gun platform (Average = 50 %): 74 %
         - Recoil effect (Restricted arc if above 1.00): 0.10
   Seaboat quality  (Average = 1.00): 2.00

Hull form characteristics:
   Hull has raised forecastle
   Block coefficient: 0.559
   Length to Beam Ratio: 8.00 : 1
   'Natural speed' for length: 14.94 kts
   Power going to wave formation at top speed: 42 %
   Trim (Max stability = 0, Max steadiness = 100): 37
   Bow angle (Positive = bow angles forward): 0.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      15.94 ft / 4.86 m
      - Forecastle (20 %):   14.76 ft / 4.50 m (10.14 ft / 3.09 m aft of break)
      - Mid (50 %):      10.14 ft / 3.09 m
      - Quarterdeck (15 %):   10.14 ft / 3.09 m
      - Stern:      10.14 ft / 3.09 m
      - Average freeboard:   11.16 ft / 3.40 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 112.0 %
      - Above water (accommodation/working, high = better): 143.3 %
   Waterplane Area: 4,379 Square feet or 407 Square metres
   Displacement factor (Displacement / loading): 127 %
   Structure weight / hull surface area: 34 lbs/sq ft or 165 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.90
      - Longitudinal: 2.63
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is cramped
   Room for accommodation and workspaces is excellent
   Ship has slow, easy roll, a good, steady gun platform
   Excellent seaboat, comfortable, can fire her guns in the heaviest weather

[P3D]

A small boat intended for coastal patrol, rescue and secondary mine laying and sweeping duties. Range requirement is determined by unrefuelled range on a two-way travel between main Orange ports at 12kts - or between Luanda and Walvis bay at reduced speed.

Orange patrol boat laid down 1908 (Engine 1909)

Displacement:
   200 t light; 206 t standard; 244 t normal; 274 t full load

Dimensions: Length overall / water x beam x draught
   120.00 ft / 120.00 ft x 20.00 ft x 6.00 ft (normal load)
   36.58 m / 36.58 m x 6.10 m  x 1.83 m

Armament:
      1 - 3.00" / 76.2 mm guns in single mounts, 13.50lbs / 6.12kg shells, 1908 Model
     Breech loading gun in deck mount
     on centreline aft
      2 - 0.40" / 10.2 mm guns in single mounts, 0.03lbs / 0.01kg shells, 1908 Model
     Breech loading guns in deck mounts
     on side, all amidships, 1 raised mount
   Weight of broadside 14 lbs / 6 kg
   Shells per gun, main battery: 150

Machinery:
   Coal fired boilers, steam turbines,
   Direct drive, 1 shaft, 1,159 shp / 865 Kw = 16.00 kts
   Range 1,500nm at 12.00 kts
   Bunker at max displacement = 68 tons (100% coal)

Complement:
   30 - 40

Cost:
   £0.017 million / $0.066 million

Distribution of weights at normal displacement:
   Armament: 2 tons, 0.7 %
   Machinery: 58 tons, 23.7 %
   Hull, fittings & equipment: 89 tons, 36.3 %
   Fuel, ammunition & stores: 44 tons, 18.0 %
   Miscellaneous weights: 52 tons, 21.3 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     332 lbs / 151 Kg = 24.6 x 3.0 " / 76 mm shells or 0.3 torpedoes
   Stability (Unstable if below 1.00): 1.08
   Metacentric height 0.5 ft / 0.2 m
   Roll period: 11.6 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.09
   Seaboat quality  (Average = 1.00): 1.63

Hull form characteristics:
   Hull has rise forward of midbreak
   Block coefficient: 0.593
   Length to Beam Ratio: 6.00 : 1
   'Natural speed' for length: 10.95 kts
   Power going to wave formation at top speed: 68 %
   Trim (Max stability = 0, Max steadiness = 100): 43
   Bow angle (Positive = bow angles forward): 0.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      14.00 ft / 4.27 m
      - Forecastle (20 %):   14.00 ft / 4.27 m
      - Mid (45 %):      14.00 ft / 4.27 m (7.00 ft / 2.13 m aft of break)
      - Quarterdeck (15 %):   7.00 ft / 2.13 m
      - Stern:      7.00 ft / 2.13 m
      - Average freeboard:   10.15 ft / 3.09 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 105.8 %
      - Above water (accommodation/working, high = better): 104.9 %
   Waterplane Area: 1,704 Square feet or 158 Square metres
   Displacement factor (Displacement / loading): 134 %
   Structure weight / hull surface area: 25 lbs/sq ft or 120 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.77
      - Longitudinal: 9.80
      - Overall: 1.00
   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

[Nobody]

River GB, Orange River GB laid down 1904
5 build

Displacement:
   96 t light; 99 t standard; 103 t normal; 106 t full load

Dimensions: Length overall / water x beam x draught
   104,99 ft / 104,99 ft x 16,40 ft x 2,62 ft (normal load)
   32,00 m / 32,00 m x 5,00 m  x 0,80 m

Armament:
      2 - 2,95" / 75,0 mm guns in single mounts, 12,87lbs / 5,84kg shells, 1904 Model
     Quick firing guns in deck mounts
     on centreline ends, evenly spread
      3 - 0,39" / 10,0 mm guns (2 mounts), 0,03lbs / 0,01kg shells, 1904 Model
     Machine guns in deck mounts
     on side, all amidships
   Weight of broadside 26 lbs / 12 kg
   Shells per gun, main battery: 100

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   0,79" / 20 mm   104,99 ft / 32,00 m   5,91 ft / 1,80 m
   Ends:   Unarmoured
     Main Belt covers 154% of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0,39" / 10 mm         -               -

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 177 ihp / 132 Kw = 11,00 kts
   Range 300nm at 10,00 kts
   Bunker at max displacement = 7 tons (100% coal)

Complement:
   16 - 21

Cost:
   £0,010 million / $0,039 million

Distribution of weights at normal displacement:
   Armament: 3 tons, 3,1%
   Armour: 19 tons, 18,7%
      - Belts: 18 tons, 17,5%
      - Torpedo bulkhead: 0 tons, 0,0%
      - Armament: 1 tons, 1,1%
      - Armour Deck: 0 tons, 0,0%
      - Conning Tower: 0 tons, 0,0%
   Machinery: 26 tons, 25,3%
   Hull, fittings & equipment: 45 tons, 43,9%
   Fuel, ammunition & stores: 7 tons, 7,0%
   Miscellaneous weights: 2 tons, 1,9%

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     181 lbs / 82 Kg = 14,1 x 3,0 " / 75 mm shells or 0,2 torpedoes
   Stability (Unstable if below 1.00): 1,20
   Metacentric height 0,5 ft / 0,1 m
   Roll period: 10,1 seconds
   Steadiness   - As gun platform (Average = 50 %): 100 %
         - Recoil effect (Restricted arc if above 1.00): 0,32
   Seaboat quality  (Average = 1.00): 1,78

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0,798
   Length to Beam Ratio: 6,40 : 1
   'Natural speed' for length: 10,25 kts
   Power going to wave formation at top speed: 50 %
   Trim (Max stability = 0, Max steadiness = 100): 60
   Bow angle (Positive = bow angles forward): 0,00 degrees
   Stern overhang: 0,00 ft / 0,00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      6,56 ft / 2,00 m
      - Forecastle (20%):   6,56 ft / 2,00 m
      - Mid (50%):      6,56 ft / 2,00 m
      - Quarterdeck (15%):   6,56 ft / 2,00 m
      - Stern:      6,56 ft / 2,00 m
      - Average freeboard:   6,56 ft / 2,00 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 107,8%
      - Above water (accommodation/working, high = better): 117,4%
   Waterplane Area: 1.503 Square feet or 140 Square metres
   Displacement factor (Displacement / loading): 104%
   Structure weight / hull surface area: 20 lbs/sq ft or 99 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,86
      - Longitudinal: 3,73
      - Overall: 1,00
   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

[Nobody]

250 t Patrol Boat, Orange Patrol Boat laid down 1913 (Engine 1912)
10 ships in class

Displacement:
   250 t light; 258 t standard; 332 t normal; 391 t full load

Dimensions: Length overall / water x beam x draught
   150,00 ft / 150,00 ft x 21,00 ft x 7,00 ft (normal load)
   45,72 m / 45,72 m x 6,40 m  x 2,13 m

Armament:
      1 - 3,00" / 76,2 mm guns in single mounts, 13,50lbs / 6,12kg shells, 1913 Model
     Breech loading gun in deck mount
     on centreline aft
      2 - 0,36" / 9,2 mm guns (1x2 guns), 0,02lbs / 0,01kg shells, 1913 Model
     Breech loading guns in deck mount
     on centreline
   Weight of broadside 14 lbs / 6 kg
   Shells per gun, main battery: 100
   2 - 18,0" / 457,2 mm above water torpedoes

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   No drive to shaft, 2 shafts, 1.170 ihp / 873 Kw = 16,00 kts
   Range 3.000nm at 12,00 kts
   Bunker at max displacement = 134 tons (100% coal)

Complement:
   38 - 50

Cost:
   £0,023 million / $0,092 million

Distribution of weights at normal displacement:
   Armament: 2 tons, 0,5%
   Machinery: 77 tons, 23,3%
   Hull, fittings & equipment: 119 tons, 35,9%
   Fuel, ammunition & stores: 82 tons, 24,6%
   Miscellaneous weights: 52 tons, 15,7%

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     513 lbs / 233 Kg = 38,0 x 3,0 " / 76 mm shells or 0,4 torpedoes
   Stability (Unstable if below 1.00): 1,16
   Metacentric height 0,6 ft / 0,2 m
   Roll period: 11,1 seconds
   Steadiness   - As gun platform (Average = 50 %): 80 %
         - Recoil effect (Restricted arc if above 1.00): 0,07
   Seaboat quality  (Average = 1.00): 2,00

Hull form characteristics:
   Hull has rise forward of midbreak
   Block coefficient: 0,527
   Length to Beam Ratio: 7,14 : 1
   'Natural speed' for length: 12,25 kts
   Power going to wave formation at top speed: 59 %
   Trim (Max stability = 0, Max steadiness = 100): 40
   Bow angle (Positive = bow angles forward): 0,00 degrees
   Stern overhang: 0,00 ft / 0,00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      14,00 ft / 4,27 m
      - Forecastle (20%):   14,00 ft / 4,27 m
      - Mid (45%):      14,00 ft / 4,27 m (7,00 ft / 2,13 m aft of break)
      - Quarterdeck (15%):   7,00 ft / 2,13 m
      - Stern:      7,00 ft / 2,13 m
      - Average freeboard:   10,15 ft / 3,09 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 97,0%
      - Above water (accommodation/working, high = better): 70,9%
   Waterplane Area: 2.152 Square feet or 200 Square metres
   Displacement factor (Displacement / loading): 151%
   Structure weight / hull surface area: 27 lbs/sq ft or 130 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,81
      - Longitudinal: 6,38
      - Overall: 1,00
   Hull space for machinery, storage, compartmentation is adequate
   Room for accommodation and workspaces is cramped
   Ship has slow, easy roll, a good, steady gun platform
   Excellent seaboat, comfortable, can fire her guns in the heaviest weather

[Nobody]

PB, Orange Sloop laid down 1913 (Engine 1912)
10 ships in class

Displacement:
   999 t light; 1.041 t standard; 1.228 t normal; 1.378 t full load

Dimensions: Length overall / water x beam x draught
   229,00 ft / 229,00 ft x 33,00 ft x 12,00 ft (normal load)
   69,80 m / 69,80 m x 10,06 m  x 3,66 m

Armament:
      2 - 6,00" / 152 mm guns in single mounts, 108,00lbs / 48,99kg shells, 1913 Model
     Breech loading guns in deck mounts with hoists
     on centreline ends, evenly spread
      2 - 3,00" / 76,2 mm guns in single mounts, 13,50lbs / 6,12kg shells, 1913 Model
     Breech loading guns in deck mounts with hoists
     on centreline ends, evenly spread, all raised mounts
      4 - 0,40" / 10,2 mm guns (2x2 guns), 0,03lbs / 0,01kg shells, 1913 Model
     Quick firing guns in deck mounts
     on side, all amidships
   Weight of broadside 243 lbs / 110 kg
   Shells per gun, main battery: 120
   2 - 21,0" / 533,4 mm above water torpedoes

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   1,00" / 25 mm   133,00 ft / 40,54 m   10,00 ft / 3,05 m
   Ends:   Unarmoured
     Main Belt covers 89% of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1,00" / 25 mm         -               -
   2nd:   1,00" / 25 mm         -               -

   - Armour deck: 1,00" / 25 mm, Conning tower: 2,00" / 51 mm

Machinery:
   Coal fired boilers, steam turbines,
   Direct drive, 2 shafts, 5.320 shp / 3.969 Kw = 20,00 kts
   Range 4.000nm at 12,00 kts
   Bunker at max displacement = 337 tons (100% coal)

Complement:
   103 - 134

Cost:
   £0,102 million / $0,407 million

Distribution of weights at normal displacement:
   Armament: 30 tons, 2,5%
   Armour: 165 tons, 13,4%
      - Belts: 59 tons, 4,8%
      - Torpedo bulkhead: 0 tons, 0,0%
      - Armament: 10 tons, 0,8%
      - Armour Deck: 91 tons, 7,4%
      - Conning Tower: 5 tons, 0,4%
   Machinery: 233 tons, 19,0%
   Hull, fittings & equipment: 483 tons, 39,3%
   Fuel, ammunition & stores: 229 tons, 18,6%
   Miscellaneous weights: 88 tons, 7,2%

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     1.761 lbs / 799 Kg = 16,3 x 6,0 " / 152 mm shells or 0,7 torpedoes
   Stability (Unstable if below 1.00): 1,14
   Metacentric height 1,2 ft / 0,4 m
   Roll period: 12,6 seconds
   Steadiness   - As gun platform (Average = 50 %): 71 %
         - Recoil effect (Restricted arc if above 1.00): 0,52
   Seaboat quality  (Average = 1.00): 1,61

Hull form characteristics:
   Hull has rise forward of midbreak
   Block coefficient: 0,474
   Length to Beam Ratio: 6,94 : 1
   'Natural speed' for length: 15,13 kts
   Power going to wave formation at top speed: 60 %
   Trim (Max stability = 0, Max steadiness = 100): 44
   Bow angle (Positive = bow angles forward): 0,00 degrees
   Stern overhang: 0,00 ft / 0,00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      19,00 ft / 5,79 m
      - Forecastle (20%):   18,00 ft / 5,49 m
      - Mid (31%):      18,00 ft / 5,49 m (11,00 ft / 3,35 m aft of break)
      - Quarterdeck (15%):   11,00 ft / 3,35 m
      - Stern:      11,00 ft / 3,35 m
      - Average freeboard:   13,25 ft / 4,04 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 88,7%
      - Above water (accommodation/working, high = better): 90,6%
   Waterplane Area: 4.919 Square feet or 457 Square metres
   Displacement factor (Displacement / loading): 128%
   Structure weight / hull surface area: 53 lbs/sq ft or 258 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,84
      - Longitudinal: 4,68
      - Overall: 1,00
   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

[Nobody]

250 t Patrol Boat, Orange Patrol Boat laid down 1904 (Engine 1900)
12 ships in service

Displacement:
   250 t light; 257 t standard; 332 t normal; 392 t full load

Dimensions: Length overall / water x beam x draught
   150,00 ft / 150,00 ft x 21,00 ft x 7,00 ft (normal load)
   45,72 m / 45,72 m x 6,40 m  x 2,13 m

Armament:
      1 - 3,00" / 76,2 mm guns in single mounts, 13,50lbs / 6,12kg shells, 1904 Model
     Breech loading gun in deck mount
     on centreline forward
      1 - 1,46" / 37,0 mm guns in single mounts, 1,55lbs / 0,70kg shells, 1904 Model
     Breech loading gun in deck mount
     on centreline aft
      2 - 0,40" / 10,2 mm guns in single mounts, 0,03lbs / 0,01kg shells, 1904 Model
     Breech loading guns in deck mounts
     on side, all forward, all raised mounts - superfiring
   Weight of broadside 15 lbs / 7 kg
   Shells per gun, main battery: 100
   2 - 15,7" / 400 mm above water torpedoes

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 742 ihp / 554 Kw = 14,30 kts
   Range 3.200nm at 11,00 kts
   Bunker at max displacement = 135 tons (100% coal)

Complement:
   38 - 50

Cost:
   £0,027 million / $0,106 million

Distribution of weights at normal displacement:
   Armament: 2 tons, 0,6%
   Machinery: 116 tons, 34,9%
   Hull, fittings & equipment: 119 tons, 35,8%
   Fuel, ammunition & stores: 82 tons, 24,8%
   Miscellaneous weights: 13 tons, 3,9%

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     365 lbs / 166 Kg = 27,0 x 3,0 " / 76 mm shells or 0,3 torpedoes
   Stability (Unstable if below 1.00): 1,37
   Metacentric height 0,8 ft / 0,3 m
   Roll period: 9,6 seconds
   Steadiness   - As gun platform (Average = 50 %): 80 %
         - Recoil effect (Restricted arc if above 1.00): 0,07
   Seaboat quality  (Average = 1.00): 2,00

Hull form characteristics:
   Hull has rise forward of midbreak
   Block coefficient: 0,527
   Length to Beam Ratio: 7,14 : 1
   'Natural speed' for length: 12,25 kts
   Power going to wave formation at top speed: 53 %
   Trim (Max stability = 0, Max steadiness = 100): 40
   Bow angle (Positive = bow angles forward): 0,00 degrees
   Stern overhang: 0,00 ft / 0,00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      14,00 ft / 4,27 m
      - Forecastle (20%):   14,00 ft / 4,27 m
      - Mid (45%):      14,00 ft / 4,27 m (7,00 ft / 2,13 m aft of break)
      - Quarterdeck (15%):   7,00 ft / 2,13 m
      - Stern:      7,00 ft / 2,13 m
      - Average freeboard:   10,15 ft / 3,09 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 122,0%
      - Above water (accommodation/working, high = better): 78,8%
   Waterplane Area: 2.152 Square feet or 200 Square metres
   Displacement factor (Displacement / loading): 128%
   Structure weight / hull surface area: 27 lbs/sq ft or 130 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,81
      - Longitudinal: 6,37
      - Overall: 1,00
   Hull space for machinery, storage, compartmentation is cramped
   Room for accommodation and workspaces is cramped
   Ship has slow, easy roll, a good, steady gun platform
   Excellent seaboat, comfortable, can fire her guns in the heaviest weather

13 t misc
10 t — short range Radio
3 t — Torpedos and Tubes

[Nobody]

200t patrol vessel 1918d, Orange Kutter laid down 1917/18/19 (Engine 1916)
ships entered service in:

Type	1918/H1	1918/H2	1919/H1	1919/H2	1920/H1	total	in service by 1919H2
a) Leader	-	-	-	-	5	5	0
b) Patrol Boat	-	-	-	-	20	20	0
c) Minesweeper	5	5	10	10	10	40	30
d) Mine-Layer	5	5	5	5	5	25	20

Displacement:
   200 t light; 208 t standard; 253 t normal; 288 t full load

Dimensions: Length overall / water x beam x draught
   139,44 ft / 137,80 ft x 19,69 ft x 6,27 ft (normal load)
   42,50 m / 42,00 m x 6,00 m  x 1,91 m

Armament:
      1 - 3,00" / 76,2 mm guns in single mounts, 13,50lbs / 6,12kg shells, 1914 Model
     Quick firing gun in deck mount
     on centreline forward
      1 - 1,00" / 25,4 mm guns in single mounts, 0,50lbs / 0,23kg shells, 1918 Model
     Anti-aircraft gun in deck mount
     on centreline aft
      2 - 0,50" / 12,7 mm guns in single mounts, 0,06lbs / 0,03kg shells, 1918 Model
     Machine guns in deck mounts
     on centreline ends, evenly spread, all raised mounts
   Weight of broadside 14 lbs / 6 kg
   Shells per gun, main battery: 400

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0,59" / 15 mm         -               -
   2nd:   0,39" / 10 mm         -               -
   3rd:   0,31" / 8 mm         -               -

   - Conning tower: 0,79" / 20 mm

Machinery:
   Coal and oil fired boilers, complex reciprocating steam engines,
   Direct drive, 1 shaft, 900 ihp / 672 Kw = 15,50 kts
   Range 3.250nm at 10,50 kts
   Bunker at max displacement = 80 tons (90% coal)

Complement:
   31 - 41

Cost:
   £0,033 million / $0,133 million

Distribution of weights at normal displacement:
   Armament: 2 tons, 0,7%
   Armour: 2 tons, 0,7%
      - Belts: 0 tons, 0,0%
      - Torpedo bulkhead: 0 tons, 0,0%
      - Armament: 1 tons, 0,4%
      - Armour Deck: 0 tons, 0,0%
      - Conning Tower: 1 tons, 0,3%
   Machinery: 58 tons, 23,1%
   Hull, fittings & equipment: 83 tons, 32,9%
   Fuel, ammunition & stores: 53 tons, 20,8%
   Miscellaneous weights: 55 tons, 21,8%

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     300 lbs / 136 Kg = 22,3 x 3,0 " / 76 mm shells or 0,3 torpedoes
   Stability (Unstable if below 1.00): 1,14
   Metacentric height 0,6 ft / 0,2 m
   Roll period: 11,0 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0,07
   Seaboat quality  (Average = 1.00): 1,67

Hull form characteristics:
   Hull has raised forecastle
   Block coefficient: 0,520
   Length to Beam Ratio: 7,00 : 1
   'Natural speed' for length: 11,74 kts
   Power going to wave formation at top speed: 59 %
   Trim (Max stability = 0, Max steadiness = 100): 42
   Bow angle (Positive = bow angles forward): 0,00 degrees
   Stern overhang: 1,64 ft / 0,50 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      13,12 ft / 4,00 m
      - Forecastle (20%):   11,15 ft / 3,40 m (7,55 ft / 2,30 m aft of break)
      - Mid (50%):      7,22 ft / 2,20 m
      - Quarterdeck (15%):   7,22 ft / 2,20 m
      - Stern:      8,20 ft / 2,50 m
      - Average freeboard:   8,29 ft / 2,53 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 105,1%
      - Above water (accommodation/working, high = better): 79,6%
   Waterplane Area: 1.776 Square feet or 165 Square metres
   Displacement factor (Displacement / loading): 135%
   Structure weight / hull surface area: 25 lbs/sq ft or 121 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,85
      - Longitudinal: 4,13
      - Overall: 1,00
   Hull space for machinery, storage, compartmentation is adequate
   Room for accommodation and workspaces is cramped
   Ship has slow, easy roll, a good, steady gun platform
   Excellent seaboat, comfortable, can fire her guns in the heaviest weather

4 variants (55 t misc)
a) Leader: 25 t long-range-Radio, 25 t hydrophones(not yet availble), 5 t command facilities
b) Patrol boat: 10 t short-range-Radio, 25 t hydrophones(not yet availble), 5 t  two depth-charge throwers and hoists, 15 t depth-charges (30?)
c) Minesweeper: 25 t long-range-Radio, 20 t mine-sweeping gear, 10 t crew comfort
d) Mine-layer: same as c), but with 20 t of mines instead