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1

Monday, March 11th 2013, 1:04am

German Merchant Designs for 1944

Repository for information pertaining to the subject

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Monday, March 11th 2013, 1:09am

Primavera class Refrigerated Combination Ship



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

3

Monday, March 11th 2013, 9:02am

Good looking vessel !!!

4

Monday, March 11th 2013, 11:45am

Thanks, but it is a mere kitbash. ;)

5

Friday, October 18th 2013, 1:12am

Bussard class Short-Sea Cargo Vessel

Bussard, German Short-Sea Cargo laid down 1944

Displacement: 2,030 t light; 2,098 t standard; 3,428 t normal; 4,492 t full load

Dimensions: Length overall / water x beam x draught

304.59 ft / 299.70 ft x 45.11 ft x 16.14 ft (normal load) [92.84 m / 91.35 m x 13.75 m x 4.92 m]

Machinery:

Diesel Internal combustion motors, Geared drive, 2 shafts, 7,889 shp / 5,885 Kw = 20.00 kts
Range 15,000nm at 18.00 kts
Bunker at max displacement = 2,393 tons

Complement: 22-29

Cost: £0.668 million / $2.671 million

Distribution of weights at normal displacement:

Armament: 0 tons, 0.0 %
Machinery: 201 tons, 5.9 %
Hull, fittings & equipment: 1,028 tons, 30.0 %
Fuel, ammunition & stores: 1,398 tons, 40.8 %
Miscellaneous weights: 800 tons, 23.3 %

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship): 1,014 lbs/460 Kg = 9.4 x 6 "/152 mm shells or .26 torpedoes
Stability (Unstable if below 1.00): 1.15
Metacentric height 2.0 ft / 0.6 m
Roll period: 13.5 seconds
Steadiness - As gun platform (Average = 50 %): 76 %
- 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 and transom stern
Block coefficient: 0.550
Length to Beam Ratio: 6.64 : 1
'Natural speed' for length: 20.33 kts
Power going to wave formation at top speed: 56 %
Trim (Max stability = 0, Max steadiness = 100): 38
Bow angle (Positive = bow angles forward): 12.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 22.97 ft / 7.00 m
- Forecastle (20 %): 20.51 ft / 6.25 m
- Mid (50 %): 18.04 ft / 5.50 m
- Quarterdeck (15 %): 18.04 ft / 5.50 m
- Stern: 18.04 ft / 5.50 m
- Average freeboard: 19.10 ft / 5.82 m

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 45.7 %
- Above water (accommodation/working, high = better): 156.1 %
Waterplane Area: 9,821 Square feet or 912 Square metres
Displacement factor (Displacement / loading): 285 %
Structure weight / hull surface area: 58 lbs/sq ft or 281 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.85
- Longitudinal: 4.64
- Overall: 1.01
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; actual radius is 2,000 nm with bunkers of 192 tons (BAM 346 tons)

Breakdown of miscellaneous weight:

Provision for side ramps aft - 50 tons
Provision for twelve passengers - 50 tons
Provision for internal ventilation systems - 100 tons
Provision for deck cargo - 600 tons

Intended for high speed palletized cargo service between Hamburg and London; no deck gear, loaded and unloaded via side ramps and side doors utilizing fork lift trucks.

Crew complement and survivability reduced for commercial service.

6

Wednesday, November 20th 2013, 4:21am

Deschimag Typ 1 Parcels Tanker

Typ 1, German Parcels Tanker laid down 1944

Displacement: 1,100 t light; 1,174 t standard; 3,670 t normal; 5,667 t full load

Dimensions: Length overall / water x beam x draught

314.18 ft / 310.70 ft x 48.23 ft x 15.58 ft (normal load) [95.76 m / 94.70 m x 14.70 m x 4.75 m]

Machinery:

Diesel Internal combustion motors, Geared drive, 1 shaft, 3,174 shp / 2,368 Kw = 15.00 kts
Range 69,750nm at 12.00 kts
Bunker at max displacement = 4,493 tons

Complement: 23 – 30

Cost: £0.335 million / $1.342 million

Distribution of weights at normal displacement:

Armament: 0 tons, 0.0 %
Machinery: 81 tons, 2.2 %
Hull, fittings & equipment: 894 tons, 24.4 %
Fuel, ammunition & stores: 2,570 tons, 70.0 %
Miscellaneous weights: 125 tons, 3.4 %

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship): 3,949 lbs/1,791 kg = 2,555 x 6in/152mm shells or 1.35 torpedoes
Stability (Unstable if below 1.00): 1.98
Metacentric height 4.9 ft / 1.5 m
Roll period: 9.1 seconds
Steadiness - As gun platform (Average = 50 %): 100 %
- 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: 0.550
Length to Beam Ratio: 6.44: 1
'Natural speed' for length: 17.63 kts
Power going to wave formation at top speed: 40 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 12.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 16.40 ft / 5.00 m
- Forecastle (20 %): 13.94 ft / 4.25 m
- Mid (50 %): 11.48 ft / 3.50 m
- Quarterdeck (25 %): 11.48 ft / 3.50 m
- Stern: 11.48 ft / 3.50 m
- Average freeboard: 12.54 ft / 3.82 m
Ship tends to be wet forward

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 12.8 %
- Above water (accommodation/working, high = better): 99.9 %
Waterplane Area: 10,143 Square feet or 942 Square metres
Displacement factor (Displacement / loading): 1,000 %
Structure weight / hull surface area: 58 lbs/sq ft or 284 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.95
- Longitudinal: 1.70
- Overall: 1.00
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, rides out heavy weather easily

Cargo simmed as additional bunkers; actual radius 8,000 nm at 12 knots; Cargo 3,800 tons of POL in twenty four tanks.

Breakdown of Miscellaneous Weight:

25 tons for deck gear
100 tons for additional piping and pumps

Crew and survivability factors reduced by 10 for commercial service

7

Wednesday, November 20th 2013, 11:45am

A parcel tanker? Is that for delivering soggy mail that's clogging up the Bundespost? :D

8

Wednesday, November 20th 2013, 2:04pm

A parcel tanker? Is that for delivering soggy mail that's clogging up the Bundespost? :D
No, for mixed cargos that do not need an entire tanker for transport. And that's Reichspost please! 8)