Margay Class, Brazilian Destroyer laid down 1932
Displacement:
1,992 t light; 2,100 t standard; 2,600 t normal; 2,989 t full load
Dimensions: Length overall / water x beam x draught
401.26 ft / 390.00 ft x 40.00 ft x 13.00 ft (normal load)
122.30 m / 118.87 m x 12.19 m x 3.96 m
Armament:
9 - 4.72" / 120 mm guns (3x3 guns), 52.72lbs / 23.91kg shells, 1932 Model
Breech loading guns in deck mounts with hoists
on centreline ends, majority forward, 1 raised mount - superfiring
10 - 1.46" / 37.0 mm guns (6 mounts), 1.55lbs / 0.70kg shells, 1932 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
4 - 0.54" / 13.7 mm guns in single mounts, 0.08lbs / 0.04kg shells, 1932 Model
Machine guns in deck mounts
on side, all amidships, all raised mounts - superfiring
Weight of broadside 490 lbs / 222 kg
Shells per gun, main battery: 200
8 - 21.0" / 533 mm above water torpedoes
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 1.00" / 25 mm 390.00 ft / 118.87 m 8.00 ft / 2.44 m
Ends: Unarmoured
Main Belt covers 154 % of normal length
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 2.00" / 51 mm 1.00" / 25 mm 2.00" / 51 mm
2nd: 0.50" / 13 mm - -
3rd: 0.25" / 6 mm - -
- Armour deck: 0.25" / 6 mm, Conning tower: 1.00" / 25 mm
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 3 shafts, 35,460 shp / 26,453 Kw = 30.50 kts
Range 15,000nm at 12.00 kts (Bunkerage = 900 tons)
Complement:
181 - 236
Cost:
£1.196 million / $4.783 million
Distribution of weights at normal displacement:
Armament: 61 tons, 2.4 %
Armour: 198 tons, 7.6 %
- Belts: 115 tons, 4.4 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 35 tons, 1.3 %
- Armour Deck: 44 tons, 1.7 %
- Conning Tower: 4 tons, 0.2 %
Machinery: 1,013 tons, 39.0 %
Hull, fittings & equipment: 720 tons, 27.7 %
Fuel, ammunition & stores: 608 tons, 23.4 %
Miscellaneous weights: 0 tons, 0.0 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
1,073 lbs / 487 Kg = 20.4 x 4.7 " / 120 mm shells or 0.5 torpedoes
Stability (Unstable if below 1.00): 1.37
Metacentric height 2.2 ft / 0.7 m
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.52
Seaboat quality (Average = 1.00): 1.27
Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.449
Length to Beam Ratio: 9.75 : 1
'Natural speed' for length: 19.75 kts
Power going to wave formation at top speed: 62 %
Trim (Max stability = 0, Max steadiness = 100): 55
Bow angle (Positive = bow angles forward): 25.00 degrees
Stern overhang: 1.00 ft / 0.30 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 22.00 ft / 6.71 m
- Forecastle (20 %): 16.00 ft / 4.88 m
- Mid (50 %): 16.00 ft / 4.88 m
- Quarterdeck (15 %): 16.00 ft / 4.88 m
- Stern: 16.00 ft / 4.88 m
- Average freeboard: 16.48 ft / 5.02 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 144.8 %
- Above water (accommodation/working, high = better): 103.2 %
Waterplane Area: 9,469 Square feet or 880 Square metres
Displacement factor (Displacement / loading): 93 %
Structure weight / hull surface area: 39 lbs/sq ft or 192 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 1.53
- Overall: 0.56
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform
Good seaboat, rides out heavy weather easily
Nine Ships:
MIBN Pantera (rated at 96%)
MIBN Lince (rated at 93%)
MIBN Tigre (rated at 90%)
MIBN Chita (rated at 59%)
MIBN Ocelot
MIBN Felis (rated at 97%)
MIBN Oncilla (rated at 96%)
MIBN Colocolo
MIBN Pampas