E-class (Now P-class) *now classed as escorts*
Atlantean Patrol vessels laid down 1919, refited 1932
10 transfered to Byzantine navy.
E-1 through 10 (Ex-P-42 through P-51) transfered to Byzantium from Atlantis
After refit (done in Atlantis prior to transfer)
Displacement:
435 t light; 460 t standard; 523 t normal; 573 t full load
Dimensions: Length overall / water x beam x draught
201.05 ft / 200.00 ft x 25.00 ft x 7.32 ft (normal load)
61.28 m / 60.96 m x 7.62 m x 2.23 m
Armament:
3 - 3.95" / 100 mm guns in single mounts, 30.81lbs / 13.98kg shells, 1932 Model
Dual purpose guns in deck mounts
on centreline ends, majority forward
2 - 1.57" / 39.9 mm guns (1x2 guns), 1.93lbs / 0.88kg shells, 1932 Model
Anti-aircraft guns in deck mount
on centreline aft, all raised guns
4 - 0.79" / 20.0 mm guns (2x2 guns), 0.24lbs / 0.11kg shells, 1932 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
2 - 0.50" / 12.7 mm guns in single mounts, 0.06lbs / 0.03kg shells, 1932 Model
Machine guns in deck mounts
on side, evenly spread
Weight of broadside 97 lbs / 44 kg
Shells per gun, main battery: 250
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 1 shaft, 2,153 shp / 1,606 Kw = 18.00 kts
Range 4,000nm at 12.00 kts
Bunker at max displacement = 113 tons
Complement:
54 - 71
Cost:
£0.079 million / $0.316 million
Distribution of weights at normal displacement:
Armament: 12 tons, 2.3 %
Machinery: 76 tons, 14.6 %
Hull, fittings & equipment: 317 tons, 60.6 %
Fuel, ammunition & stores: 87 tons, 16.7 %
Miscellaneous weights: 30 tons, 5.7 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
999 lbs / 453 Kg = 32.4 x 4.0 " / 100 mm shells or 0.7 torpedoes
Stability (Unstable if below 1.00): 1.14
Metacentric height 0.8 ft / 0.2 m
Roll period: 11.8 seconds
Steadiness - As gun platform (Average = 50 %): 71 %
- Recoil effect (Restricted arc if above 1.00): 0.24
Seaboat quality (Average = 1.00): 1.47
Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.500
Length to Beam Ratio: 8.00 : 1
'Natural speed' for length: 14.14 kts
Power going to wave formation at top speed: 55 %
Trim (Max stability = 0, Max steadiness = 100): 48
Bow angle (Positive = bow angles forward): 5.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 12.00 ft / 3.66 m
- Forecastle (20 %): 9.50 ft / 2.90 m
- Mid (50 %): 9.50 ft / 2.90 m
- Quarterdeck (15 %): 9.00 ft / 2.74 m
- Stern: 9.00 ft / 2.74 m
- Average freeboard: 9.54 ft / 2.91 m
Ship tends to be wet forward
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 73.6 %
- Above water (accommodation/working, high = better): 105.8 %
Waterplane Area: 3,202 Square feet or 297 Square metres
Displacement factor (Displacement / loading): 187 %
Structure weight / hull surface area: 56 lbs/sq ft or 276 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.46
- Longitudinal: 4.28
- Overall: 1.63
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform
Good seaboat, rides out heavy weather easily
14 tons for DC and equipment
9 tons for sonar
7 tons for surface search radar