The Primavera design was prepared by Flensburger Schiffsbau at the request of the firm of Ferdinand Laeisz, which plans to construct several vessels of this type for its services to West Africa. They will feature fully insulated holds for fruit and deep tanks for palm oil or liquid latex cargos. Accommodation for up to 36 cabin passengers is provided, with full amenities for tropical voyages.
Specification:
Primavera, German Refrigerated Passenger Cargo Ship laid down 1944
Displacement: 4,340 t light; 4,500 t standard; 8,001 t normal; 10,801 t full load
Dimensions: Length overall / water x beam x draught
422.41 ft / 422.41 ft x 52.82 ft x 20.18 ft (normal load) [128.75 m / 128.75 m x 16.10 m x 6.15 m]
Machinery:
Diesel Internal combustion motors, Geared drive, 1 shaft, 9,358 shp / 6,981 Kw = 18.00 kts
Range 36,000nm at 15.00 kts
Bunker at max displacement = 6,301 tons
Complement: 42 - 55
Cost: £1.247 million / $4.988 million
Distribution of weights at normal displacement:
Armament: 0 tons, 0.0 %
Machinery: 239 tons, 3.0 %
Hull, fittings & equipment: 2,901 tons, 36.3 %
Fuel, ammunition & stores: 3,661 tons, 45.8 %
Miscellaneous weights: 1,200 tons, 15.0 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship): 3,231 lbs / 1,466 Kg = 30 x 6 " / 152 mm shells or .64 torpedoes
Stability (Unstable if below 1.00): 1.25
Metacentric height 2.9 ft / 0.9 m
Roll period: 13.1 seconds
Steadiness - As gun platform (Average = 50 %): 86 %
- Recoil effect (Restricted arc if above 1.00): 0.00
Seaboat quality (Average = 1.00): 2.00
Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.622
Length to Beam Ratio: 8.00: 1
'Natural speed' for length: 20.55 kts
Power going to wave formation at top speed: 41 %
Trim (Max stability = 0, Max steadiness = 100): 43
Bow angle (Positive = bow angles forward): 0.00 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 (25 %): 18.04 ft / 5.50 m
- Mid (50 %): 16.73 ft / 5.10 m
- Quarterdeck (22 %): 16.73 ft / 5.10 m
- Stern: 16.73 ft / 5.10 m
- Average freeboard: 17.36 ft / 5.29 m
Ship tends to be wet forward
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 27.6 %
- Above water (accommodation/working, high = better): 125.8 %
Waterplane Area: 16,351 Square feet or 1,519 Square metres
Displacement factor (Displacement / loading): 477 %
Structure weight / hull surface area: 109 lbs/sq ft or 534 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.46
- Longitudinal: 2.43
- Overall: 1.54
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
Low-stowed cargo simmed as additional bunkers.
Normal radius is 6,500 nm on Bunkers at max (BAM) of 1,200 tons
Additional bunkerage (5,300 tons) represents cargo.
Breakdown of miscellaneous weight:
Accommodation for up to 36 cabin passengers, with amenities - 400 tons
Refrigeration plant - 200 tons
Cargo handling gear - 200 tons
Provision for deck cargo (typically timber) - 400 tons
Breakdown of low-stowed cargo:
Deep tanks aft for liquid cargo (palm oil, latex) - 800 tons
Insulated spaces for fruit and other produce - 3,500 tons
Reserved for general cargo - 1,000 tons
Survivability and crew data reduced for commercial service