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Summary

Ly Thuong Kiet class Destroyer - 1947
- Ly Thuong Kiet: Laid down at SNFCM Marseilles July 1947, completed June 1948
- Ngo Quyen: Laid down at SNFCM Marseilles July 1947, completed June 1948
- Tran Binh Trong: Laid down at SNFCM Marseilles January 1948, completed December 1948
- Tran Quang Khai: Laid down at SNFCM Marseilles January 1948, completed December 1948

Ly Thuong Kiet, Indochinese Destroyer laid down 1947

Displacement:
1,950 t light; 2,074 t standard; 2,370 t normal; 2,607 t full load

Dimensions: Length overall / water x beam x draught
409.67 ft / 393.70 ft x 36.42 ft x 14.11 ft (normal load)
124.87 m / 120.00 m x 11.10 m x 4.30 m

Armament:
4 - 3.94" / 100 mm guns in single mounts, 35.27lbs / 16.00kg shells, 1947 Model
Automatic rapid fire guns in deck mounts with hoists
on centreline ends, evenly spread, 2 raised mounts - superfiring
1 - 3.94" / 100 mm guns in single mounts, 35.27lbs / 16.00kg shells, 1947 Model
Automatic rapid fire gun in a deck mount with hoist
on centreline amidships, 1 raised gun
8 - 1.57" / 40.0 mm guns (4x2 guns), 1.95lbs / 0.89kg shells, 1947 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
4 - 0.59" / 15.0 mm guns in single mounts, 0.10lbs / 0.05kg shells, 1947 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 192 lbs / 87 kg
Shells per gun, main battery: 650
8 - 21.7" / 550 mm above water torpedoes

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0.98" / 25 mm 0.39" / 10 mm 0.39" / 10 mm
2nd: 0.98" / 25 mm 0.39" / 10 mm 0.39" / 10 mm
3rd: 0.59" / 15 mm 0.20" / 5 mm -

- Conning tower: 1.18" / 30 mm

Machinery:
Oil fired boilers, steam turbines plus diesel motors,
Geared drive, 2 shafts, 42,655 shp / 31,820 Kw = 34.00 kts
Range 4,400nm at 18.00 kts
Bunker at max displacement = 532 tons

Complement:
169 - 220

Cost:
£1.701 million / $6.805 million

Distribution of weights at normal displacement:
Armament: 25 tons, 1.1 %
Armour: 16 tons, 0.7 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 11 tons, 0.5 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 5 tons, 0.2 %
Machinery: 1,034 tons, 43.6 %
Hull, fittings & equipment: 741 tons, 31.3 %
Fuel, ammunition & stores: 420 tons, 17.7 %
Miscellaneous weights: 135 tons, 5.7 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
894 lbs / 405 Kg = 29.3 x 3.9 " / 100 mm shells or 0.4 torpedoes
Stability (Unstable if below 1.00): 1.16
Metacentric height 1.5 ft / 0.4 m
Roll period: 12.7 seconds
Steadiness - As gun platform (Average = 50 %): 71 %
- Recoil effect (Restricted arc if above 1.00): 0.32
Seaboat quality (Average = 1.00): 1.11

Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0.410
Length to Beam Ratio: 10.81 : 1
'Natural speed' for length: 22.77 kts
Power going to wave formation at top speed: 64 %
Trim (Max stability = 0, Max steadiness = 100): 64
Bow angle (Positive = bow angles forward): 30.00 degrees
Stern overhang: 3.28 ft / 1.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 21.98 ft / 6.70 m
- Forecastle (15 %): 21.33 ft / 6.50 m
- Mid (30 %): 20.67 ft / 6.30 m (13.45 ft / 4.10 m aft of break)
- Quarterdeck (15 %): 13.45 ft / 4.10 m
- Stern: 13.45 ft / 4.10 m
- Average freeboard: 15.80 ft / 4.82 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 158.0 %
- Above water (accommodation/working, high = better): 92.5 %
Waterplane Area: 9,217 Square feet or 856 Square metres
Displacement factor (Displacement / loading): 96 %
Structure weight / hull surface area: 41 lbs/sq ft or 199 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.58
- Longitudinal: 1.95
- Overall: 0.65
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

Breakdown of Miscellaneous Weights:
- 55 tons for electronics
- 15 tons for degaussing system
- 35 tons for HVAC
- 15 tons for two LRASM Modele 1947 2x4 32cm launchers and reloads
- 15 tons for additional gear

Electronics:
- DRBV-10 DP sentry radar (1 radar, 10 tons)
- DRBN-1 navigational surface and air search radar (1 radar, 2 tons)
- DRBC-4 DP fire-control radar (2 radars, 10 tons)
- ARBR-2 radar jammer/detector (1 unit, 2 tons)
- SAGEM HF/DF (3 tons)
- ASDIC (18 tons)
- Diesel electric generator set (5 tons)
- Gunnery Computer for 100mm and 40mm guns (5 tons)

Ships in Class:
- Ly Thuong Kiet
- Ngo Quyen
- Tran Binh Trong
- Tran Quang Khai