[SIZE=3]
Alonso de Ercilla, Chilean Motorship laid down 1925[/SIZE]
Displacement:
8,500 t light; 8,791 t standard; 10,862 t normal; 12,519 t full load
Dimensions: Length overall / water x beam x draught
519.04 ft / 500.33 ft x 63.32 ft x 19.69 ft (normal load)
158.20 m / 152.50 m x 19.30 m x 6.00 m
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 10,960 shp / 8,176 Kw = 18.00 kts
Range 9,250nm at 18.00 kts
Bunker at max displacement = 3,728 tons
Complement:
531 - 691
Cost:
£1.439 million / $5.756 million
Distribution of weights at normal displacement:
Armament: 110 tons, 1.0 %
Machinery: 356 tons, 3.3 %
Hull, fittings & equipment: 3,109 tons, 28.6 %
Fuel, ammunition & stores: 2,362 tons, 21.7 %
Miscellaneous weights: 4,925 tons, 45.3 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
19,147 lbs / 8,685 Kg = 177.3 x 6.0 " / 152 mm shells or 2.5 torpedoes
Stability (Unstable if below 1.00): 1.09
Metacentric height 3.0 ft / 0.9 m
Roll period: 15.4 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.10
Seaboat quality (Average = 1.00): 2.00
Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.610
Length to Beam Ratio: 7.90 : 1
'Natural speed' for length: 22.37 kts
Power going to wave formation at top speed: 36 %
Trim (Max stability = 0, Max steadiness = 100): 25
Bow angle (Positive = bow angles forward): 12.80 degrees
Stern overhang: 13.12 ft / 4.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 24.61 ft / 7.50 m
- Forecastle (20 %): 22.97 ft / 7.00 m
- Mid (50 %): 21.33 ft / 6.50 m
- Quarterdeck (15 %): 19.69 ft / 6.00 m
- Stern: 21.33 ft / 6.50 m
- Average freeboard: 21.62 ft / 6.59 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 68.4 %
- Above water (accommodation/working, high = better): 178.3 %
Waterplane Area: 23,379 Square feet or 2,172 Square metres
Displacement factor (Displacement / loading): 167 %
Structure weight / hull surface area: 85 lbs/sq ft or 417 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.96
- Longitudinal: 1.70
- Overall: 1.01
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
Notes:
Built by Harland and Wolff based on the P&O's SS
Razmak.
Breakdown of Miscellaneous Weights:
Not available
Ships in Service:
- SS
Alonso de Ercilla
- SS
Pedro de Valdivia
- SS
Bernardo O'Higgins
- SS
Lautaro