WesWorld

Quoted

- Chojo Maru
- Choko Maru
- Choan Maru

I believe that only Japan uses 'Maru' for ships. Not sure that China would be using Japanese for their ships. They are independent enough.

Quoted

They travel on the route from Keelung to Melbourne. (Keelung, Kobe, Yokohama, Guam, Rabaul, Sydney, Melbourne => Return: Melbourne, Sydney, Brisbane, Cairns, Singapore, Hong Kong, Keelung)

With the Chinese aggression, it seems unlikely that Kobe and Yokohama would be ports of call.



Using my liner spreadsheet, your numbers appear to be slightly off...


- 270 tons for 30 2nd-Class Passengers => 26
- 230 tons for 66 3rd-Class Passengers => 60


- 900 tons for 100 2nd class passengers => 95
- 1050 tons for 300 3rd class passengers => 296


- 612 tons for 68 2nd class passengers => 57
- 210 tons for 60 3rd class passengers => 52


- 1404 tons for 156 2nd-Class Passengers => 135
- 574 tons for 164 3rd-Class Passengers => 147

And, somewhat as an aside, the closer vessel in the junk picture is actually a lorcha... which is a European-designed hull with a junk rig, irregularly used in China itself. ;)

Quoted from "Rooijen10"

Quoted

- Chojo Maru
- Choko Maru
- Choan Maru

I believe that only Japan uses 'Maru' for ships. Not sure that China would be using Japanese for their ships. They are independent enough.

I shifted it from an old thread, and there was the naming ".... Maru" . And i didn't want to re-christened the ships. But if you have a problem with it, i will rename the ships.

Quoted

They travel on the route from Keelung to Melbourne. (Keelung, Kobe, Yokohama, Guam, Rabaul, Sydney, Melbourne => Return: Melbourne, Sydney, Brisbane, Cairns, Singapore, Hong Kong, Keelung)
With the Chinese aggression, it seems unlikely that Kobe and Yokohama would be ports of call.

As mentioned above, i shifted it from an old thread, and there was the route mentioned. No issue, temporarily delete the japanese ports in the route


About the passengers:
At the time, i make the spreadsheets, i used for the different classes the following: 18tons for 1st Class / 9tons for 2nd Class / 3.5tons for 3rd Class

I think it won't be an issue, if i will stay for these old vessels with the published data.

An emergency tow concept is a plan designed to ensure the timely arrival of efficient salvage tugs in the event of a casualty, before it becomes in a situation where it is not possible to tow it free of charge or only at the cost of severe environmental damage. For this reason, Canton Salvage and Towage Co. Ltd. has developed an EMERGENCY TOWING VESSEL (ETV). There are three stations for the ETVs, Yantai, Shanghai and Canton - on each station one Vessel is placed.

Tuzhong - Class
Emergency Towing Vessel

Displacement:
1.014 t light; 1.048 t standard; 1.691 t normal; 2.205 t full load

Dimensions:
Length overall / water x beam x draught
218,93 ft / 208,33 ft x 38,06 ft x 14,93 ft (normal load)
66,73 m / 63,50 m x 11,60 m x 4,55 m

Machinery:
Diesel Internal combustion engines plus batteries,
Electric cruising motors plus geared drives, 2 shafts, 3.907 shp / 2.915 Kw = 18,20 kts
Range 32.000nm at 12,00 kts
Bunker at max displacement = 1.157 tons

Complement:
13 - 17

Cost:
£0,364 million / $1,457 million

Distribution of weights at normal displacement:
Armament: 0 tons, 0,0%
Machinery: 95 tons, 5,6%
Hull, fittings & equipment: 419 tons, 24,8%
Fuel, ammunition & stores: 677 tons, 40,0%
Miscellaneous weights: 500 tons, 29,6%

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
3.392 lbs / 1.538 Kg = 263,5 x 6 " / 152 mm shells or 1,6 torpedoes
Stability (Unstable if below 1.00): 1,03
Metacentric height 1,3 ft / 0,4 m
Roll period: 14,3 seconds
Steadiness - As gun platform (Average = 50 %): 62 %
- Recoil effect (Restricted arc if above 1.00): 0,00
Seaboat quality (Average = 1.00): 1,24

Hull form characteristics:
Hull has raised forecastle, rise forward of midbreak
and transom stern
Block coefficient: 0,500
Length to Beam Ratio: 5,47 : 1
'Natural speed' for length: 17,39 kts
Power going to wave formation at top speed: 62 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 20,00 degrees
Stern overhang: 3,94 ft / 1,20 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 18,31 ft / 5,58 m
- Forecastle (20%): 17,06 ft / 5,20 m (12,47 ft / 3,80 m aft of break)
- Mid (50%): 12,47 ft / 3,80 m (9,84 ft / 3,00 m aft of break)
- Quarterdeck (20%): 9,84 ft / 3,00 m
- Stern: 9,84 ft / 3,00 m
- Average freeboard: 12,17 ft / 3,71 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 51,6%
- Above water (accommodation/working, high = better): 89,1%
Waterplane Area: 5.494 Square feet or 510 Square metres
Displacement factor (Displacement / loading): 245%
Structure weight / hull surface area: 47 lbs/sq ft or 231 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,88
- Longitudinal: 3,56
- Overall: 1,01
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is cramped
Good seaboat, rides out heavy weather easily

Misc. Weight: 500tons
Towing equipment - 100tons
Salvage crane - 50tons
High-capacity pumps - 50tons
Submarine rescue apparatus/chamber - 50tons
Fire Fighting equiment - 50tons
Subsidiary low-speed towing diesel - 50tons
Stowage - 100tons

Deep Stowage:
15000sm @ 12kn: 340tons
First Aid & Operation room: 100tons
Hospital (20 Persons @ 5 tons): 100tons
Workshops: 100tons

Crew complement reduced for commercial service