[SIZE=3]Tranquillité, French Hospital Ship laid down 1941[/SIZE]
Displacement:
8,937 t light; 9,201 t standard; 13,248 t normal; 16,485 t full load
Dimensions: Length overall / water x beam x draught
562.55 ft / 541.34 ft x 64.30 ft x 22.97 ft (normal load)
171.47 m / 165.00 m x 19.60 m x 7.00 m
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 12,010 shp / 8,960 Kw = 18.00 kts
Range 30,500nm at 15.00 kts
Bunker at max displacement = 7,284 tons
Complement:
616 - 802
Cost:
£2.208 million / $8.833 million
Distribution of weights at normal displacement:
Armament: 0 tons, 0.0 %
Machinery: 317 tons, 2.4 %
Hull, fittings & equipment: 3,419 tons, 25.8 %
Fuel, ammunition & stores: 4,312 tons, 32.5 %
Miscellaneous weights: 5,200 tons, 39.3 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
28,100 lbs / 12,746 Kg = 260.2 x 6 " / 152 mm shells or 3.7 torpedoes
Stability (Unstable if below 1.00): 1.10
Metacentric height 3.1 ft / 0.9 m
Roll period: 15.3 seconds
Steadiness - As gun platform (Average = 50 %): 52 %
- Recoil effect (Restricted arc if above 1.00): 0.00
Seaboat quality (Average = 1.00): 2.00
Hull form characteristics:
Hull has raised forecastle
Block coefficient: 0.580
Length to Beam Ratio: 8.42 : 1
'Natural speed' for length: 23.27 kts
Power going to wave formation at top speed: 33 %
Trim (Max stability = 0, Max steadiness = 100): 26
Bow angle (Positive = bow angles forward): 15.00 degrees
Stern overhang: 13.12 ft / 4.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 30.18 ft / 9.20 m
- Forecastle (20 %): 28.71 ft / 8.75 m (21.33 ft / 6.50 m aft of break)
- Mid (50 %): 19.69 ft / 6.00 m
- Quarterdeck (15 %): 20.34 ft / 6.20 m
- Stern: 22.97 ft / 7.00 m
- Average freeboard: 22.26 ft / 6.79 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 51.5 %
- Above water (accommodation/working, high = better): 156.4 %
Waterplane Area: 24,987 Square feet or 2,321 Square metres
Displacement factor (Displacement / loading): 227 %
Structure weight / hull surface area: 84 lbs/sq ft or 409 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.95
- Longitudinal: 1.59
- Overall: 1.00
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is excellent
Excellent seaboat, comfortable, rides out heavy weather easily
Notes:
- Based on the Françoise Massard-class cargoliner hull.
- 3641 tons of ballast and low-stowed supplies simmed as additional bunker fuel
Breakdown of Miscellaneous Weights:
- 3,500 tons for up to 700 patients (~5t per patient)
- 200 tons for surgery centers
- 1500 tons for medical supplies
- 3641 tons other cargo.