WesWorld

These vessels are intended as fast reaction transports and not amphibious landing ships; additional small boats are carried for local security while on station. They are expected to be useful in maintaining security in the northern regions that are without rail links to the rest of the nation.

Pimentel, Peruvian Gunboat-Transport laid down 1946

Displacement: 1,776 t light; 1,856 t standard; 2,098 t normal; 2,291 t full load

Dimensions: Length overall / water x beam x draught

334.37 ft / 328.08 ft x 43.31 ft x 12.30 ft (normal load) [101.92 m / 100.00 m x 13.20 m x 3.75 m]

Armament:

6 - 4.13" / 105 mm guns (3x2 guns), 35.32lbs / 16.02kg shells, 1946 Model Dual purpose guns in deck mounts on centerline ends, majority forward, 1 raised mount - superfiring
4 - 1.46" / 37.0 mm guns (2x2 guns), 1.55lbs / 0.70kg shells, 1946 Model Anti-aircraft guns in deck mounts on side, all amidships, all raised mounts - superfiring
8 - 0.79" / 20.0 mm guns (4x2 guns), 0.24lbs / 0.11kg shells, 1946 Model Anti-aircraft guns in deck mounts on side, evenly spread
Weight of broadside 220 lbs / 100 kg
Shells per gun, main battery: 300

Armor:

Gun armor: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0.98" / 25 mm 0.39" / 10 mm -
2nd: 0.39" / 10 mm 0.39" / 10 mm -
3rd: 0.39" / 10 mm - -

Conning tower: 0.98" / 25 mm

Machinery:

Diesel Internal combustion motors, Geared drive, 2 shafts, 5,415 shp / 4,040 Kw = 20.00 kts
Range 6,000nm at 15.00 kts
Bunker at max displacement = 436 tons

Complement: 154 - 201

Cost: £0.739 million / $2.955 million

Distribution of weights at normal displacement:

Armament: 28 tons, 1.3 %
Armor: 14 tons, 0.7 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 11 tons, 0.5 %
- Armor Deck: 0 tons, 0.0 %
- Conning Tower: 3 tons, 0.2 %
Machinery: 135 tons, 6.4 %
Hull, fittings & equipment: 949 tons, 45.2 %
Fuel, ammunition & stores: 322 tons, 15.3 %
Miscellaneous weights: 650 tons, 31.0 %

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship): 4,308 lbs / 1,954 Kg = 122.0 x 4.1 " / 105 mm shells or 1.4 torpedoes
Stability (Unstable if below 1.00): 1.10
Metacentric height 1.7 ft / 0.5 m
Roll period: 13.9 seconds
Steadiness - As gun platform (Average = 50 %): 69 %
- Recoil effect (Restricted arc if above 1.00): 0.10
Seaboat quality (Average = 1.00): 1.86

Hull form characteristics:

Hull has a flush deck and transom stern
Block coefficient: 0.420
Length to Beam Ratio: 7.58: 1
'Natural speed' for length: 21.41 kts
Power going to wave formation at top speed: 46 %
Trim (Max stability = 0, Max steadiness = 100): 37
Bow angle (Positive = bow angles forward): 18.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 19.36 ft / 5.90 m
- Forecastle (35 %): 14.27 ft / 4.35 m
- Mid (50 %): 12.47 ft / 3.80 m
- Quarterdeck (25 %): 12.47 ft / 3.80 m
- Stern: 12.47 ft / 3.80 m
- Average freeboard: 13.95 ft / 4.25 m
Ship tends to be wet forward

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 66.5 %
- Above water (accommodation/working, high = better): 145.7 %
Waterplane Area: 9,196 Square feet or 854 Square meters
Displacement factor (Displacement / loading): 182 %
Structure weight / hull surface area: 68 lbs/sq ft or 333 Kg/sq meter
Hull strength (Relative):
- Cross-sectional: 1.14
- Longitudinal: 2.45
- Overall: 1.23
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

Breakdown of miscellaneous weight:

50 tons for radar and electronics
450 tons for quarters for a troop contingent of 225
100 tons for cargo space for equipment and supplies
50 tons for additional cranes and boats

Ah, destroyer-transport - I'd thought about building some of these for Chile on the basis of the Bolados-class... I have a design stashed somewhere. The four that I have currently are getting a bit long in the tooth (meaning their teeth have fallen out and they have fakes).

Quoted from "Brockpaine"

Ah, destroyer-transport - I'd thought about building some of these for Chile on the basis of the Bolados-class... I have a design stashed somewhere. The four that I have currently are getting a bit long in the tooth (meaning their teeth have fallen out and they have fakes).

More like the historical Mexican Durango class gunboats. Given Peru's large north-south distances, poor rail net, and even poorer road net, they will be quite useful.

Looks very useful.