Submitted for your review is my take on the Plataforma Itinerante de Acción Social; suggestions on how to outfit the craft are quite welcome.
Pucalipa, Peruvian Plataforma Itinerante de Acción Social laid down 1949
Displacement: 195 t light; 199 t standard; 205 t normal; 210 t full load
Dimensions: Length overall / water x beam x draught
45.66 ft / 144.36 ft x 22.97 ft x 3.94 ft (normal load) [44.40 m / 44.00 m x 7.00 m x 1.20 m]
Machinery:
Diesel Internal combustion motors, Geared drive, 2 shafts, 266 shp / 199 Kw = 12.00 kts
Range 2,000nm at 8.00 kts
Bunker at max displacement = 10 tons
Complement: 26 - 35
Cost: £0.059 million / $0.236 million
Distribution of weights at normal displacement:
Armament: 0 tons, 0.0 %
Machinery: 6 tons, 3.1 %
Hull, fittings & equipment: 89 tons, 43.2 %
Fuel, ammunition & stores: 10 tons, 4.8 %
Miscellaneous weights: 100 tons, 48.8 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship): 630 lbs / 286 Kg = 5.8 x 6 " / 152 mm shells or 0.7 torpedoes
Stability (Unstable if below 1.00): 1.10
Metacentric height 0.7 ft / 0.2 m
Roll period: 11.9 seconds
Steadiness - As gun platform (Average = 50 %): 72 %
- Recoil effect (Restricted arc if above 1.00): 0.00
Seaboat quality (Average = 1.00): 1.90
Hull form characteristics:
Hull has a flush deck and transom stern
Block coefficient: 0.550
Length to Beam Ratio: 6.29: 1
'Natural speed' for length: 14.18 kts
Power going to wave formation at top speed: 43 %
Trim (Max stability = 0, Max steadiness = 100): 38
Bow angle (Positive = bow angles forward): 9.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 8.20 ft / 2.50 m
- Forecastle (20 %): 8.20 ft / 2.50 m
- Mid (50 %): 8.20 ft / 2.50 m
- Quarterdeck (15 %): 8.20 ft / 2.50 m
- Stern: 8.20 ft / 2.50 m
- Average freeboard: 8.20 ft / 2.50 m
Ship tends to be wet forward
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 64.0 %
- Above water (accommodation/working, high = better): 144.7 %
Waterplane Area: 2,408 Square feet or 224 Square meters
Displacement factor (Displacement / loading): 182 %
Structure weight / hull surface area: 26 lbs/sq ft or 125 Kg/sq meter
Hull strength (Relative):
- Cross-sectional: 0.91
- Longitudinal: 2.86
- Overall: 1.02
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, rides out heavy weather easily
Constructed under the small craft rules. Intended for riverine service
Breakdown of miscellaneous weight:
20 tons for a small operating theatre
15 tons for a medical dispensary
40 tons for two small class/meeting rooms
15 tons for small workshops
10 tons for storerooms for supplies and consumables
Tentative names: Pucalipa, Iparia, Atelaya, and Kiriqueti