WesWorld

Since 1921, the aging steamers the 11,000 ton Bergensfjord and the 12,500 ton Stavangerfjord of the Nordmark-America Line, have been operating on a circle-schedule, the ships sailing in opposite directions, connecting Nordmark with Atlantis, the South African Atlantic Coast (both Warvis Bay and Cape Town),Buenos Aires, Montevideo, Rio de Janeiro, New York City, Vinland, and Iceland.
The ships, are now considered far too small and slow to compete on this service. Thus the company has come to the decision to build 2 new ships, capable of cruising at nearly 30knots to take over the service.

Nordmark, Nordmark-America Liner laid down 1931

Displacement:
38,856 t light; 39,874 t standard; 50,906 t normal; 59,733 t full load

Dimensions: Length overall / water x beam x draught
974.71 ft / 950.00 ft x 100.00 ft x 31.00 ft (normal load)
297.09 m / 289.56 m x 30.48 m x 9.45 m

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 204,366 shp / 152,457 Kw = 33.00 kts
Range 7,000nm at 29.50 kts
Bunker at max displacement = 19,859 tons

Complement:
1,693 - 2,202

Cost:
£9.668 million / $38.671 million

Distribution of weights at normal displacement:
Armament: 0 tons, 0.0 %
Machinery: 6,111 tons, 12.0 %
Hull, fittings & equipment: 17,744 tons, 34.9 %
Fuel, ammunition & stores: 12,051 tons, 23.7 %
Miscellaneous weights: 15,000 tons, 29.5 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
95,975 lbs / 43,534 Kg = 888.7 x 6 " / 152 mm shells or 4.8 torpedoes
Stability (Unstable if below 1.00): 0.99
Metacentric height 4.9 ft / 1.5 m
Roll period: 18.9 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
and transom stern
Block coefficient: 0.605
Length to Beam Ratio: 9.50 : 1
'Natural speed' for length: 34.93 kts
Power going to wave formation at top speed: 50 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 25.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 53.00 ft / 16.15 m
- Forecastle (20 %): 44.00 ft / 13.41 m
- Mid (50 %): 44.00 ft / 13.41 m
- Quarterdeck (15 %): 44.00 ft / 13.41 m
- Stern: 45.00 ft / 13.72 m
- Average freeboard: 44.80 ft / 13.65 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 71.8 %
- Above water (accommodation/working, high = better): 360.2 %
Waterplane Area: 72,762 Square feet or 6,760 Square metres
Displacement factor (Displacement / loading): 187 %
Structure weight / hull surface area: 135 lbs/sq ft or 659 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.90
- Longitudinal: 2.73
- Overall: 1.00
Caution: Poor stability - excessive risk of capsizing
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

Nordmark & Princess Victoria

Misc weight allocation:
16t / first class cabin passenger . . . 400 passengers = 6,400 tons
7.5t / second class cabin passenger . . 500 passengers = 3,750 tons
2.8t / steerage passenger . . . . . . 1000 passengers = 2,800tons
Total passengers. . . . . . . . . . . 1,900 passengers = 12,950 tons
Cargo . . . . . . . . . . . . . . . . . . . . . . . . .= 1,550 tons
Extras. . . . . . . . . . . . . . . . . . . . . . . . .= 500 tons
Grand total . . . . . . . . . . . . . . . . . . . . . .= 15,000 tons

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Nordmark will be layed down in April 1931, with Princess Victoria following on 3 months behind.

The ships are expected to both enter service in 1935.

Quoted

Caution: Poor stability - excessive risk of capsizing

Shall we call her Poseidon?

Quoted

The ships, are now considered far too small and slow to compete on this service.

The problem might be that not many people want to go to Iceland, Vinland or Nordmark. Southampton to New York is a more profitable route with many more passengers.

Nordmark, Nordmark-America Liner laid down 1931

Displacement:
38,926 t light; 39,944 t standard; 50,890 t normal; 59,646 t full load

Dimensions: Length overall / water x beam x draught
974.71 ft / 950.00 ft x 105.00 ft x 31.00 ft (normal load)
297.09 m / 289.56 m x 32.00 m x 9.45 m

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 202,467 shp / 151,041 Kw = 33.00 kts
Range 7,000nm at 29.50 kts
Bunker at max displacement = 19,703 tons

Complement:
1,693 - 2,202

Cost:
£9.644 million / $38.576 million

Distribution of weights at normal displacement:
Armament: 0 tons, 0.0 %
Machinery: 6,055 tons, 11.9 %
Hull, fittings & equipment: 17,871 tons, 35.1 %
Fuel, ammunition & stores: 11,964 tons, 23.5 %
Miscellaneous weights: 15,000 tons, 29.5 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
101,222 lbs / 45,913 Kg = 937.2 x 6 " / 152 mm shells or 5.2 torpedoes
Stability (Unstable if below 1.00): 1.01
Metacentric height 5.5 ft / 1.7 m
Roll period: 18.7 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
and transom stern
Block coefficient: 0.576
Length to Beam Ratio: 9.05 : 1
'Natural speed' for length: 35.16 kts
Power going to wave formation at top speed: 49 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 25.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 53.00 ft / 16.15 m
- Forecastle (20 %): 44.00 ft / 13.41 m
- Mid (50 %): 44.00 ft / 13.41 m
- Quarterdeck (15 %): 44.00 ft / 13.41 m
- Stern: 45.00 ft / 13.72 m
- Average freeboard: 44.80 ft / 13.65 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 71.5 %
- Above water (accommodation/working, high = better): 367.8 %
Waterplane Area: 74,307 Square feet or 6,903 Square metres
Displacement factor (Displacement / loading): 188 %
Structure weight / hull surface area: 138 lbs/sq ft or 672 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.90
- Longitudinal: 2.58
- Overall: 1.00
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


Misc weight allocation:
16t / first class cabin passenger . . . 400 passengers = 6,400 tons
7.5t / second class cabin passenger . . 500 passengers = 3,750 tons
2.8t / steerage passenger . . . . . . 1000 passengers = 2,800tons
Total passengers. . . . . . . . . . . 1,900 passengers = 12,950 tons
Cargo . . . . . . . . . . . . . . . . . . . . . . . . .= 1,550 tons
Extras. . . . . . . . . . . . . . . . . . . . . . . . .= 500 tons
Grand total . . . . . . . . . . . . . . . . . . . . . .= 15,000 tons

The route takes in Nordmark-South Africa (via Atlantis) a busy route. Class cut down to one ship, with a second older & smaller ship working in tandem.

Quoted

Quoted

Caution: Poor stability - excessive risk of capsizing

Shall we call her Poseidon?

Maybe... :-)
Earl, adjust the trim of the ship. there is no need for a 'steady gun platform' rating for a liner... at leat adjust it so stability is above 1.05

Trim adjusted, must steadier.

Nordmark, Nordmark-America Liner laid down 1931

Displacement:
38,926 t light; 39,944 t standard; 50,890 t normal; 59,646 t full load

Dimensions: Length overall / water x beam x draught
974.71 ft / 950.00 ft x 105.00 ft x 31.00 ft (normal load)
297.09 m / 289.56 m x 32.00 m x 9.45 m

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 202,467 shp / 151,041 Kw = 33.00 kts
Range 7,000nm at 29.50 kts
Bunker at max displacement = 19,703 tons

Complement:
1,693 - 2,202

Cost:
£9.644 million / $38.576 million

Distribution of weights at normal displacement:
Armament: 0 tons, 0.0 %
Machinery: 6,055 tons, 11.9 %
Hull, fittings & equipment: 17,871 tons, 35.1 %
Fuel, ammunition & stores: 11,964 tons, 23.5 %
Miscellaneous weights: 15,000 tons, 29.5 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
106,162 lbs / 48,154 Kg = 983.0 x 6 " / 152 mm shells or 5.2 torpedoes
Stability (Unstable if below 1.00): 1.12
Metacentric height 6.6 ft / 2.0 m
Roll period: 17.1 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- 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: 0.576
Length to Beam Ratio: 9.05 : 1
'Natural speed' for length: 35.16 kts
Power going to wave formation at top speed: 49 %
Trim (Max stability = 0, Max steadiness = 100): 35
Bow angle (Positive = bow angles forward): 25.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 53.00 ft / 16.15 m
- Forecastle (20 %): 44.00 ft / 13.41 m
- Mid (50 %): 44.00 ft / 13.41 m
- Quarterdeck (15 %): 44.00 ft / 13.41 m
- Stern: 45.00 ft / 13.72 m
- Average freeboard: 44.80 ft / 13.65 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 71.5 %
- Above water (accommodation/working, high = better): 367.8 %
Waterplane Area: 74,307 Square feet or 6,903 Square metres
Displacement factor (Displacement / loading): 188 %
Structure weight / hull surface area: 138 lbs/sq ft or 672 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.90
- Longitudinal: 2.58
- Overall: 1.00
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



Misc weight allocation:
16t / first class cabin passenger . . . 400 passengers = 6,400 tons
7.5t / second class cabin passenger . . 500 passengers = 3,750 tons
2.8t / steerage passenger . . . . . . 1000 passengers = 2,800tons
Total passengers. . . . . . . . . . . 1,900 passengers = 12,950 tons
Cargo . . . . . . . . . . . . . . . . . . . . . . . . .= 1,550 tons
Extras. . . . . . . . . . . . . . . . . . . . . . . . .= 500 tons
Grand total . . . . . . . . . . . . . . . . . . . . . .= 15,000 tons

Much better. A slow, easy roll is a good thing on a liner for the comfort of the passengers.

BTW, it looks like you copied the passenger/cargo allocation from another existing liner (probably mine or a desing that wa 'influenced' by one of my designs).
For 1931, you'll need 3.36 tons for each steerage passenger and 8.96 tons for each cabin passenger. First class is not in there. That one I added myself by using 2x cabin passenger tonnage.


From the Spring Style notes:

Quoted

Liners laid down up till 1900: 4 tons per cabin-class
passenger, 1.5 tons per steerage passenger
(i.e., immigrants to America).

After 1900: multiply the above figure by 1 plus
(date - 1900) / 25. Thus, for example, a liner laid down
in 1910 will require 1.4 times the miscellaneous weight
needed for one laid down in 1900 or earlier; a liner laid
down in 1925 will require twice as much.

drat!!!!

Redesigned again

Nordmark, Nordmark-America Liner laid down 1931

Displacement:
40,631 t light; 41,691 t standard; 53,010 t normal; 62,065 t full load

Dimensions: Length overall / water x beam x draught
974.71 ft / 950.00 ft x 105.00 ft x 31.00 ft (normal load)
297.09 m / 289.56 m x 32.00 m x 9.45 m

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 209,700 shp / 156,437 Kw = 33.00 kts
Range 7,000nm at 29.50 kts
Bunker at max displacement = 20,374 tons

Complement:
1,746 - 2,270

Cost:
£10.036 million / $40.146 million

Distribution of weights at normal displacement:
Armament: 0 tons, 0.0 %
Machinery: 6,271 tons, 11.8 %
Hull, fittings & equipment: 18,260 tons, 34.4 %
Fuel, ammunition & stores: 12,379 tons, 23.4 %
Miscellaneous weights: 16,100 tons, 30.4 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
108,519 lbs / 49,223 Kg = 1,004.8 x 6 " / 152 mm shells or 5.2 torpedoes
Stability (Unstable if below 1.00): 1.11
Metacentric height 6.6 ft / 2.0 m
Roll period: 17.2 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- 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: 0.600
Length to Beam Ratio: 9.05 : 1
'Natural speed' for length: 35.07 kts
Power going to wave formation at top speed: 50 %
Trim (Max stability = 0, Max steadiness = 100): 35
Bow angle (Positive = bow angles forward): 25.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 53.00 ft / 16.15 m
- Forecastle (20 %): 44.00 ft / 13.41 m
- Mid (50 %): 44.00 ft / 13.41 m
- Quarterdeck (15 %): 44.00 ft / 13.41 m
- Stern: 45.00 ft / 13.72 m
- Average freeboard: 44.80 ft / 13.65 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 72.2 %
- Above water (accommodation/working, high = better): 365.0 %
Waterplane Area: 76,036 Square feet or 7,064 Square metres
Displacement factor (Displacement / loading): 185 %
Structure weight / hull surface area: 139 lbs/sq ft or 677 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.90
- Longitudinal: 2.53
- Overall: 1.00
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



Misc weight allocation:
17.5t / first class cabin passenger . . . 400 passengers = 7,000 tons
8.96t / second class cabin passenger . . 450 passengers = 4,032 tons
3.36t / steerage passenger . . . . . . 950 passengers = 3,192tons
Total passengers. . . . . . . . . . . 1,900 passengers = 14224tons
Cargo . . . . . . . . . . . . . . . . . . . . . . . . .= 1,376 tons
Extras. . . . . . . . . . . . . . . . . . . . . . . . .= 500 tons
Grand total . . . . . . . . . . . . . . . . . . . . . .= 16,100 tons

Is it me or did it become a little bit bigger... :-)

yeah, about 2000tons bigger.

Quoted

Is it me or did it become a little bit bigger... :-)

Heh, what's 1700 tons between countries???