(Historical data)
Philippine & Pacific Steam Ship Co. Gordita-class Fast Freighter laid down 1926
Two ships converted to Chorlito-class destroyer tender 1930
Displacement: 8,054 t light; 8,307 t standard; 9,878 t normal; 11,135 t full load
Dimensions: Length overall / water x beam x draught
489.28 ft / 482.28 ft x 60.70 ft x 19.69 ft (normal load) [149.13 m / 147.00 m x 18.50 m x 6.00 m]
Armament:
4 - 5.12" / 130 mm guns (2x2 guns), 70.00lbs / 31.75kg shells, 1925 Model Breech loading guns in deck mounts with hoists on centreline ends, evenly spread
8 - 2.95" / 75.0 mm guns (4x2 guns), 13.23lbs / 6.00kg shells, 1926 Model Dual purpose guns in deck mounts with hoists on side ends, evenly spread
8 - 2.24" / 57.0 mm guns (4x2 guns), 6.00lbs / 2.72kg shells, 1923 Model Dual purpose guns in deck mounts with hoists on side, all amidships
4 - 1.38" / 35.0 mm guns (2x2 guns), 1.31lbs / 0.60kg shells, 1930 Model Anti-aircraft guns in deck mounts on centreline ends, evenly spread, all raised mounts
8 - 0.54" / 13.7 mm guns (4x2 guns), 0.11lbs / 0.05kg shells, 1925 Model Machine guns in deck mounts on side ends, evenly spread, all raised mounts - superfiring
Weight of broadside 440 lbs / 200 kg
Shells per gun, main battery: 200
Armour:
Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.97" / 50 mm 0.98" / 25 mm 0.98" / 25 mm
2nd: 1.18" / 30 mm 0.59" / 15 mm 0.98" / 25 mm
3rd: 0.98" / 25 mm - -
4th: 0.59" / 15 mm - -
Conning tower: 1.97" / 50 mm
Machinery:
Diesel Internal combustion generators, Electric motors, 2 shafts, 6,805 shp / 5,077 Kw = 16.00 kts
Range 20,000nm at 12.00 kts (Bunkerage = 2,828 tons)
Complement: 495 - 644
Cost: £1.231 million / $4.926 million
Distribution of weights at normal displacement:
Armament: 52 tons, 0.5 %
Armour: 54 tons, 0.5 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 34 tons, 0.3 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 20 tons, 0.2 %
Machinery: 218 tons, 2.2 %
Hull, fittings & equipment: 3,230 tons, 32.7 %
Fuel, ammunition & stores: 1,824 tons, 18.5 %
Miscellaneous weights: 4,500 tons, 45.6 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship): 15,874 lbs / 7,200 Kg = 236.8 x 5.1 " / 130 mm shells or 2.6 torpedoes
Stability (Unstable if below 1.00): 1.05
Metacentric height 2.6 ft / 0.8 m
Roll period: 15.8 seconds
Steadiness - As gun platform (Average = 50 %): 47 %
- Recoil effect (Restricted arc if above 1.00): 0.08
Seaboat quality (Average = 1.00): 1.55
Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.600
Length to Beam Ratio: 7.95 : 1
'Natural speed' for length: 21.96 kts
Power going to wave formation at top speed: 31 %
Trim (Max stability = 0, Max steadiness = 100): 29
Bow angle (Positive = bow angles forward): 0.00 degrees
Stern overhang: 7.00 ft / 2.13 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 24.61 ft / 7.50 m
- Forecastle (20 %): 16.40 ft / 5.00 m
- Mid (50 %): 14.76 ft / 4.50 m
- Quarterdeck (15 %): 14.76 ft / 4.50 m
- Stern: 14.76 ft / 4.50 m
- Average freeboard: 15.99 ft / 4.88 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 61.8 %
- Above water (accommodation/working, high = better): 124.7 %
Waterplane Area: 21,409 Square feet or 1,989 Square metres
Displacement factor (Displacement / loading): 183 %
Structure weight / hull surface area: 103 lbs/sq ft or 501 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.25
- Longitudinal: 1.50
- Overall: 1.28
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
Chorlito, laid down 1926, converted 1930
Agachadiza, laid down 1926, converted 1930