WesWorld

Destroyer tenders

Elasippos and Diaprepes (both to be decommissioned and sold into civilian service once Venture class enter service)

Submarine/Destroyer tenders

Venture and Valour

submarine tenders

Venerable, Virtuous

Alaunia, Artifex and Ausonia

Coastal force tenders

Anubis, Baal, Horus, Hathor, Isis, Osiris, Ra, Seth

Boa vista, Orinoco, Caura and Arauca

Future projects

4 submarine tender/supply ships

Venerable, Virtuous, Atlantean Sub tender laid down 1946
This pair of ships are improved Venture type ships with a more modern AA outfit.

Displacement:
12,724 t light; 13,165 t standard; 15,722 t normal; 17,768 t full load

Dimensions: Length overall / water x beam x draught
530.19 ft / 520.00 ft x 74.00 ft x 26.00 ft (normal load)
161.60 m / 158.50 m x 22.56 m x 7.92 m

Armament:
4 - 5.10" / 130 mm guns (2x2 guns), 66.33lbs / 30.09kg shells, 1945 Model
Dual purpose guns in deck mounts
on centreline ends, evenly spread, 1 raised mount
4 - 2.95" / 75.0 mm guns (2x2 guns), 12.87lbs / 5.84kg shells, 1945 Model
Automatic rapid fire guns in deck mounts
on centreline ends, evenly spread, all raised mounts
4 - 2.95" / 75.0 mm guns (2x2 guns), 12.87lbs / 5.84kg shells, 1945 Model
Automatic rapid fire guns in deck mounts
on side, evenly spread, all raised mounts
16 - 0.79" / 20.0 mm guns (8x2 guns), 0.24lbs / 0.11kg shells, 1945 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, 6 raised mounts
8 - 0.50" / 12.7 mm guns (4x2 guns), 0.06lbs / 0.03kg shells, 1945 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 373 lbs / 169 kg
Shells per gun, main battery: 550

Machinery:
Oil fired boilers, steam turbines,
Electric motors, 4 shafts, 19,708 shp / 14,702 Kw = 20.00 kts
Range 30,004nm at 12.00 kts
Bunker at max displacement = 4,603 tons

Complement:
701 - 912

Cost:
£3.844 million / $15.374 million

Distribution of weights at normal displacement:
Armament: 49 tons, 0.3 %
Machinery: 498 tons, 3.2 %
Hull, fittings & equipment: 7,177 tons, 45.7 %
Fuel, ammunition & stores: 2,998 tons, 19.1 %
Miscellaneous weights: 5,000 tons, 31.8 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
35,666 lbs / 16,178 Kg = 537.7 x 5.1 " / 130 mm shells or 4.5 torpedoes
Stability (Unstable if below 1.00): 1.04
Metacentric height 3.5 ft / 1.1 m
Roll period: 16.7 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.04
Seaboat quality (Average = 1.00): 2.00

Hull form characteristics:
Hull has raised forecastle, low quarterdeck
Block coefficient: 0.550
Length to Beam Ratio: 7.03 : 1
'Natural speed' for length: 22.80 kts
Power going to wave formation at top speed: 42 %
Trim (Max stability = 0, Max steadiness = 100): 35
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: 28.00 ft / 8.53 m
- Forecastle (20 %): 26.00 ft / 7.92 m (18.00 ft / 5.49 m aft of break)
- Mid (50 %): 26.00 ft / 7.92 m
- Quarterdeck (15 %): 18.00 ft / 5.49 m (26.00 ft / 7.92 m before break)
- Stern: 18.00 ft / 5.49 m
- Average freeboard: 23.76 ft / 7.24 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 49.0 %
- Above water (accommodation/working, high = better): 176.3 %
Waterplane Area: 26,855 Square feet or 2,495 Square metres
Displacement factor (Displacement / loading): 246 %
Structure weight / hull surface area: 168 lbs/sq ft or 820 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.61
- Longitudinal: 3.55
- Overall: 1.74
Hull space for machinery, storage, compartmentation is excellent
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


Ships in class Venerable and Virtuous

Misc weights:
(1682 tons simmed as bunkerage *)
1,000 tons for ammo
1,000 tons for machine shop
1,000 tons for crew accomidations
200 tons for spare torpedo's (100)
500 tons for torpedo workshop
250 tons for workshop
250 tons for fabrication shop
300 tons for six 50 ton cranes
104 tons for 2 LCM's used for harbour replenishment operations
200 tons for dispensary and medical facilities
100 tons for Electronics (radar etc.)
60 tons for 6x300kw diesel generators

Venture, Atlantean Submarine/Destroyer tender laid down 1944
These two ships can act as submarine tenders if needed but typically serve as destroyer tenders.

Displacement:
12,705 t light; 13,121 t standard; 15,722 t normal; 17,803 t full load

Dimensions: Length overall / water x beam x draught
530.19 ft / 520.00 ft x 74.00 ft x 26.00 ft (normal load)
161.60 m / 158.50 m x 22.56 m x 7.92 m

Armament:
4 - 5.10" / 130 mm guns (2x2 guns), 66.33lbs / 30.09kg shells, 1943 Model
Dual purpose guns in deck mounts
on centreline ends, evenly spread, 1 raised mount
8 - 1.57" / 40.0 mm guns (2x4 guns), 1.95lbs / 0.88kg shells, 1943 Model
Anti-aircraft guns in deck mounts
on centreline ends, evenly spread, all raised mounts
8 - 1.57" / 40.0 mm guns (2x4 guns), 1.95lbs / 0.88kg shells, 1943 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
24 - 0.79" / 20.0 mm guns (12x2 guns), 0.24lbs / 0.11kg shells, 1943 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, 6 raised mounts
8 - 0.50" / 12.7 mm guns (4x2 guns), 0.06lbs / 0.03kg shells, 1943 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 303 lbs / 137 kg
Shells per gun, main battery: 550

Machinery:
Oil fired boilers, steam turbines,
Electric motors, 4 shafts, 19,708 shp / 14,702 Kw = 20.00 kts
Range 30,004nm at 12.00 kts
Bunker at max displacement = 4,682 tons

Complement:
701 - 912

Cost:
£3.585 million / $14.341 million

Distribution of weights at normal displacement:
Armament: 38 tons, 0.2 %
Machinery: 509 tons, 3.2 %
Hull, fittings & equipment: 7,158 tons, 45.5 %
Fuel, ammunition & stores: 3,017 tons, 19.2 %
Miscellaneous weights: 5,000 tons, 31.8 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
35,996 lbs / 16,327 Kg = 542.7 x 5.1 " / 130 mm shells or 4.5 torpedoes
Stability (Unstable if below 1.00): 1.04
Metacentric height 3.5 ft / 1.1 m
Roll period: 16.7 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.03
Seaboat quality (Average = 1.00): 2.00

Hull form characteristics:
Hull has raised forecastle, low quarterdeck
Block coefficient: 0.550
Length to Beam Ratio: 7.03 : 1
'Natural speed' for length: 22.80 kts
Power going to wave formation at top speed: 42 %
Trim (Max stability = 0, Max steadiness = 100): 35
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: 28.00 ft / 8.53 m
- Forecastle (20 %): 26.00 ft / 7.92 m (18.00 ft / 5.49 m aft of break)
- Mid (50 %): 26.00 ft / 7.92 m
- Quarterdeck (15 %): 18.00 ft / 5.49 m (26.00 ft / 7.92 m before break)
- Stern: 18.00 ft / 5.49 m
- Average freeboard: 23.76 ft / 7.24 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 48.6 %
- Above water (accommodation/working, high = better): 176.3 %
Waterplane Area: 26,855 Square feet or 2,495 Square metres
Displacement factor (Displacement / loading): 249 %
Structure weight / hull surface area: 168 lbs/sq ft or 818 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.61
- Longitudinal: 3.54
- Overall: 1.74
Hull space for machinery, storage, compartmentation is excellent
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

Ships in class: Venture and Valour

Misc weight breakdown:
Total: 7341 tons (2,341 tons simmed as bunkerage *)
1,200 tons for repair materials
1,000 tons for cargo
1,000 tons for ammo
1,000 tons for machine shop
1,000 tons for crew accomidations
500 tons for torpedo workshop
300 tons for six 50 ton cranes
250 tons for weapons workshop
250 tons for fabrication shop
200 tons for 100 spare torpedo's
200 tons for dispensary and medical facilities
104 tons for 2 LCM's used for harbour replenishment operations
100 tons for Electronics (radar etc.)
60 tons for 6x300kw diesel generators

Submarine Tenders



Alaunia, Artifex and Ausonia
These three ships have tended to the D1/9 class fleet subs and various R class subs since their construction in 1916. Alaunia originally tended to the D1/9 class subs and later the newer R-74 class subs. Ammunition, torpedo and fuel load out vary depending on the class of subs they tend to. The extra bunkerage for submarines is not usually used for full refueling as fuel capacity is not great so these tenders are usually accompanied by a small tanker. Also due to their size they are only used for maintenance and repair and not replenishment or crew accommodations, functions reserved for other purpose built ships. These ships have a hoist position on the bow used to lift subs partially out of water resulting in the use of a clipper bow and a sturdy bow sprit.


Alaunia , Atlantean Submarine tender laid down 1916

Displacement:
2,608 t light; 2,677 t standard; 3,351 t normal; 3,890 t full load

Dimensions: Length overall / water x beam x draught
407.12 ft / 365.00 ft x 46.00 ft x 12.70 ft (normal load)
124.09 m / 111.25 m x 14.02 m x 3.87 m

Armament:
2 - 3.00" / 76.2 mm guns in single mounts, 13.50lbs / 6.12kg shells, 1916 Model
Quick firing guns in deck mounts
on centreline ends, evenly spread
4 - 0.98" / 25.0 mm guns in single mounts, 0.48lbs / 0.22kg shells, 1916 Model
Breech loading guns in deck mounts
on side, all amidships
Weight of broadside 29 lbs / 13 kg
Shells per gun, main battery: 150

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 2,300 shp / 1,716 Kw = 14.00 kts
Range 20,000nm at 10.00 kts
Bunker at max displacement = 1,212 tons

Complement:
219 - 286

Cost:
£0.174 million / $0.696 million

Distribution of weights at normal displacement:
Armament: 4 tons, 0.1 %
Machinery: 86 tons, 2.6 %
Hull, fittings & equipment: 1,018 tons, 30.4 %
Fuel, ammunition & stores: 743 tons, 22.2 %
Miscellaneous weights: 1,500 tons, 44.8 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
7,253 lbs / 3,290 Kg = 537.2 x 3.0 " / 76 mm shells or 1.9 torpedoes
Stability (Unstable if below 1.00): 1.12
Metacentric height 1.9 ft / 0.6 m
Roll period: 13.9 seconds
Steadiness - As gun platform (Average = 50 %): 54 %
- Recoil effect (Restricted arc if above 1.00): 0.01
Seaboat quality (Average = 1.00): 1.87

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.550
Length to Beam Ratio: 7.93 : 1
'Natural speed' for length: 19.10 kts
Power going to wave formation at top speed: 29 %
Trim (Max stability = 0, Max steadiness = 100): 29
Bow angle (Positive = bow angles forward): 30.00 degrees
Stern overhang: 30.00 ft / 9.14 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 21.00 ft / 6.40 m
- Forecastle (20 %): 14.00 ft / 4.27 m
- Mid (50 %): 14.00 ft / 4.27 m
- Quarterdeck (15 %): 14.00 ft / 4.27 m
- Stern: 14.00 ft / 4.27 m
- Average freeboard: 14.56 ft / 4.44 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 58.7 %
- Above water (accommodation/working, high = better): 142.7 %
Waterplane Area: 11,718 Square feet or 1,089 Square metres
Displacement factor (Displacement / loading): 197 %
Structure weight / hull surface area: 58 lbs/sq ft or 282 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.98
- Longitudinal: 1.44
- Overall: 1.02
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is excellent
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Misc weights:
570 tons for fuel for subs (simmed as extra bunkerage)
500 tons for fuel
500 tons for ammunition and torpedo's
200 tons for Engineering workshop
200 tons for torpedo workshop
100 tons for two cranes

Destroyer depot ships

Elasippos and Diaprepes
These ships were built to tend to the newer A through G and Admiralty class destroyers. They can carry enough stores to completely supply two destroyer squadrons (8 ships) but given the state of Atlantean port supplies post war they usually only carried half their capacity of ammo supplies and as a result could tender more than intended at full capacity.

Elasippos, Atlantean Destroyer Tender laid down 1919

Displacement:
6,399 t light; 6,678 t standard; 8,226 t normal; 9,465 t full load

Dimensions: Length overall / water x beam x draught
414.41 ft / 410.00 ft x 56.00 ft x 19.00 ft (normal load)
126.31 m / 124.97 m x 17.07 m x 5.79 m

Armament:
8 - 4.00" / 102 mm guns in single mounts, 32.00lbs / 14.51kg shells, 1919 Model
Breech loading guns in deck mounts
on centreline ends, evenly spread
2 - 3.00" / 76.2 mm guns in single mounts, 13.50lbs / 6.12kg shells, 1919 Model
Breech loading guns in deck mounts
on side, all amidships
4 - 1.00" / 25.4 mm guns in single mounts, 0.50lbs / 0.23kg shells, 1919 Model
Breech loading guns in deck mounts
on side, evenly spread
Weight of broadside 285 lbs / 129 kg
Shells per gun, main battery: 700

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 1 shaft, 5,012 shp / 3,739 Kw = 15.00 kts
Range 20,000nm at 12.00 kts
Bunker at max displacement = 2,787 tons

Complement:
431 - 561

Cost:
£0.608 million / $2.433 million

Distribution of weights at normal displacement:
Armament: 36 tons, 0.4 %
Machinery: 178 tons, 2.2 %
Hull, fittings & equipment: 3,185 tons, 38.7 %
Fuel, ammunition & stores: 1,828 tons, 22.2 %
Miscellaneous weights: 3,000 tons, 36.5 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
18,967 lbs / 8,603 Kg = 592.7 x 4.0 " / 102 mm shells or 3.0 torpedoes
Stability (Unstable if below 1.00): 1.06
Metacentric height 2.4 ft / 0.7 m
Roll period: 15.3 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.05
Seaboat quality (Average = 1.00): 2.00

Hull form characteristics:
Hull has raised forecastle
Block coefficient: 0.660
Length to Beam Ratio: 7.32 : 1
'Natural speed' for length: 20.25 kts
Power going to wave formation at top speed: 34 %
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: 25.00 ft / 7.62 m
- Forecastle (20 %): 22.50 ft / 6.86 m (22.00 ft / 6.71 m aft of break)
- Mid (50 %): 22.00 ft / 6.71 m
- Quarterdeck (15 %): 22.00 ft / 6.71 m
- Stern: 24.00 ft / 7.32 m
- Average freeboard: 22.45 ft / 6.84 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 52.3 %
- Above water (accommodation/working, high = better): 170.4 %
Waterplane Area: 17,528 Square feet or 1,628 Square metres
Displacement factor (Displacement / loading): 226 %
Structure weight / hull surface area: 105 lbs/sq ft or 512 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.28
- Longitudinal: 4.14
- Overall: 1.44
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is excellent
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Misc weights:
1,000 tons for supplies
431 tons for spare materials for minor repairs
400 tons for 16,000 rounds of 1" ammunition
360 tons for recreational area's
200 tons for torpedo workshop
200 tons for engineering workshop
169 tons for fuel (1,311 additional tons simmed as ships bunkerage)
120 tons for depth charges and equipment spares
80 tons for 50x21" torpedo's
40 tons for 4x10 ton cranes

Boa vista , Atlantean Coastal forces depot ship laid down 1926, refited 1932

Boa vista, Orinoco, Caura, Arauca

Displacement:
579 t light; 596 t standard; 768 t normal; 906 t full load

Dimensions: Length overall / water x beam x draught
216.55 ft / 210.00 ft x 32.50 ft x 6.50 ft (normal load)
66.00 m / 64.01 m x 9.91 m x 1.98 m

Armament:
2 - 1.57" / 40 mm guns (1x2 guns), 1.93lbs / 0.88kg shells, 1926 Model
Anti-aircraft guns in deck mount
on centreline forward
2 - 0.79" / 20.0 mm guns in single mounts, 0.24lbs / 0.11kg shells, 1926 Model
Anti-aircraft guns in deck mounts
on side, all amidships
2 - 0.50" / 12.7 mm guns in single mounts, 0.06lbs / 0.03kg shells, 1926 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 4 lbs / 2 kg
Shells per gun, main battery: 500

Machinery:
Oil fired boilers, complex reciprocating steam engines,
Geared drive, 2 shafts, 1,854 ihp / 1,383 Kw = 16.00 kts
Range 7,000nm at 12.00 kts
Bunker at max displacement = 309 tons

Complement:
72 - 94

Cost:
£0.123 million / $0.493 million

Distribution of weights at normal displacement:
Armament: 1 tons, 0.1 %
Machinery: 107 tons, 13.9 %
Hull, fittings & equipment: 412 tons, 53.7 %
Fuel, ammunition & stores: 189 tons, 24.6 %
Miscellaneous weights: 60 tons, 7.8 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
2,539 lbs / 1,151 Kg = 1,312.0 x 1.6 " / 40 mm shells or 1.3 torpedoes
Stability (Unstable if below 1.00): 1.28
Metacentric height 1.4 ft / 0.4 m
Roll period: 11.4 seconds
Steadiness - As gun platform (Average = 50 %): 71 %
- Recoil effect (Restricted arc if above 1.00): 0.00
Seaboat quality (Average = 1.00): 1.88

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.606
Length to Beam Ratio: 6.46 : 1
'Natural speed' for length: 14.49 kts
Power going to wave formation at top speed: 52 %
Trim (Max stability = 0, Max steadiness = 100): 38
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: 18.00 ft / 5.49 m
- Forecastle (20 %): 12.00 ft / 3.66 m
- Mid (50 %): 12.00 ft / 3.66 m
- Quarterdeck (15 %): 12.00 ft / 3.66 m
- Stern: 12.00 ft / 3.66 m
- Average freeboard: 12.48 ft / 3.80 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 55.5 %
- Above water (accommodation/working, high = better): 159.4 %
Waterplane Area: 5,020 Square feet or 466 Square metres
Displacement factor (Displacement / loading): 276 %
Structure weight / hull surface area: 53 lbs/sq ft or 257 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.26
- Longitudinal: 4.51
- Overall: 1.43
Hull space for machinery, storage, compartmentation is excellent
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

21 tons for 20x18" torpedo's
2 tons for 8,000x20mm ammo
1 ton for 1000x40mm ammo
1 ton for 30,300x50 cal ammo
15 tons for 40 Depth charges
20 tons for fuel and supplies

Anubis, Atlantean design Coastal forces tender laid down 1946

Displacement:
689 t light; 718 t standard; 817 t normal; 895 t full load

Dimensions: Length overall / water x beam x draught
221.55 ft / 215.00 ft x 32.50 ft x 6.75 ft (normal load)
67.53 m / 65.53 m x 9.91 m x 2.06 m

Armament:
2 - 2.95" / 74.9 mm guns (1x2 guns), 12.84lbs / 5.82kg shells, 1946 Model
Dual purpose guns in a deck mount with hoist
on centreline forward
4 - 0.79" / 20.0 mm guns in single mounts, 0.24lbs / 0.11kg shells, 1946 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
4 - 0.50" / 12.7 mm guns (2x2 guns), 0.06lbs / 0.03kg shells, 1946 Model
Machine guns in deck mounts
on side, evenly spread
Weight of broadside 27 lbs / 12 kg
Shells per gun, main battery: 800

Machinery:
Diesel Internal combustion motors,
Geared drive, 2 shafts, 3,041 shp / 2,269 Kw = 18.00 kts
Range 6,000nm at 12.00 kts
Bunker at max displacement = 177 tons

Complement:
76 - 99

Cost:
£0.270 million / $1.081 million

Distribution of weights at normal displacement:
Armament: 4 tons, 0.5 %
Machinery: 76 tons, 9.3 %
Hull, fittings & equipment: 509 tons, 62.4 %
Fuel, ammunition & stores: 127 tons, 15.6 %
Miscellaneous weights: 100 tons, 12.2 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
2,663 lbs / 1,208 Kg = 207.5 x 3.0 " / 75 mm shells or 1.4 torpedoes
Stability (Unstable if below 1.00): 1.06
Metacentric height 1.0 ft / 0.3 m
Roll period: 13.4 seconds
Steadiness - As gun platform (Average = 50 %): 71 %
- Recoil effect (Restricted arc if above 1.00): 0.07
Seaboat quality (Average = 1.00): 1.39

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.606
Length to Beam Ratio: 6.62 : 1
'Natural speed' for length: 14.66 kts
Power going to wave formation at top speed: 57 %
Trim (Max stability = 0, Max steadiness = 100): 51
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: 18.00 ft / 5.49 m
- Forecastle (20 %): 12.00 ft / 3.66 m
- Mid (50 %): 12.00 ft / 3.66 m
- Quarterdeck (15 %): 12.00 ft / 3.66 m
- Stern: 12.00 ft / 3.66 m
- Average freeboard: 12.48 ft / 3.80 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 49.8 %
- Above water (accommodation/working, high = better): 154.6 %
Waterplane Area: 5,139 Square feet or 477 Square metres
Displacement factor (Displacement / loading): 288 %
Structure weight / hull surface area: 63 lbs/sq ft or 309 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.41
- Longitudinal: 5.10
- Overall: 1.61
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform
Good seaboat, rides out heavy weather easily

Notes: based on the Boa Vista design these ships have improved capabilities over the preveous class.
Ships in class: Anubis, Baal, Horus, Hathor, Isis, Osiris, Ra, Seth
Two more ships, Homerus and Epigenes laid down for Byzantium.

Misc. tonnage breakdown:
32 tons for 20x21" type 15 torpedos
15 tons for 40 type 5 depth charges
5 tons for 1 crane
2 tons for 8,000x20mm ammo
1 ton for 1,000x40mm ammo
1 ton for 30,300x 50 cal ammo
44 tons for fuel and supplies