CT Only: HG Scale Efficiency for Non-Combatants

[Grav_Moped]

The one minimum-sized component of HG ships is the bridge, and it scales up proportionately above 1000Td.

So, if you don't need bays or spinals, what's the big advantage for building ships any larger than that?

Crew -- except command crew, and they might be partially subsumed into proportional requirements anyhow -- is mostly proportional to tonnage (all else equal).

 

[kilemall]

The one minimum-sized component of HG ships is the bridge, and it scales up proportionately above 1000Td.

So, if you don't need bays or spinals, what's the big advantage for building ships any larger than that?

Crew -- except command crew, and they might be partially subsumed into proportional requirements anyhow -- is mostly proportional to tonnage (all else equal).

Megacorps through tonnage taking IND goods several subsectors without unloading except at say one hub per subsector.

 

[AnotherDilbert]

A) Z drives...

B) There are tiny differences that does not scale down to 1000 Dt, such as e.g. command crew, fuel purifiers, and computers. It gives a small but noticeable difference in profitability.

Example:
1 kDt, J-1
5% return on investment.

MT-A611121-000000-00000-0        MCr 238       1 000 Dton
bearing                                            Crew=5
batteries                                           TL=12
                       Cargo=772 Fuel=110 EP=10 Agility=1

Single Occupancy                                  772       297,5
                                     USP    #     Dton       Cost
Hull, Streamlined   Custom             A         1000           
Configuration       Flattened Sphe     6                     80 
Scoops              Streamlined                               1 
                                                                
Jump Drive                             1    1      20        80 
Manoeuvre D                            1    1      20        30 
Power Plant                            1    1      30        90 
Fuel, #J, #weeks    J-1, 4 weeks            1     110           
Purifier                                    1       6         0,0
                                                                
Bridge                                      1      20         5 
Computer            m/2                2    1       2         9 
                                                                
Staterooms                                  5      20         2,5
                                                                
Cargo                                             772           
                                                                
Nominal Cost        MCr 297,53           Sum:     772       297,5
Class Cost          MCr  62,48          Valid      ≥0          ≥0
Ship Cost           MCr 238,02                                   
                                                                
                                                                
Crew &               High     0        Crew          Bridge     2
Passengers            Mid     0           5       Engineers     2
                      Low     0                     Gunners     0
                 Extra SR     0      Frozen         Service     1
               # Frozen W     0           0          Flight     0
                  Marines     0                     Marines     0
                                                                
                                                                
Estimated Economy of Ship     Standard                                     
       Ship price     Down Payment         Mortgage       Avg Filled
       MCr 238,02       kCr 47 605          kCr 992              80%
                                                                
Expenses per jump                       Revenue                 
Bank                Cr 476 048          High           Cr       0
Fuel                Cr  11 000          Middle         Cr       0
Life Support        Cr  10 000          Low            Cr       0
Salaries            Cr  10 080          Cargo          Cr 616 000
Maintenance         Cr   9 521                                   
Berthing            Cr   1 000                                   
                                                                
Summa              kCr     518                        kCr     616
                                                                
     Income potential per jump     kCr 98                   
  Yearly yield on down payment      5,2%

10 kDt, J-1
6% return on investment

MT-K611142-000000-00000-0      MCr 2 331      10 000 Dton
bearing                                           Crew=47
batteries                                           TL=12
                    Cargo=7775 Fuel=1100 EP=100 Agility=0

Single Occupancy                                  7 775     2 914
                                     USP    #      Dton      Cost
Hull, Streamlined   Custom             K         10 000         
Configuration       Flattened Sphe     6                      800
Scoops              Streamlined                                10
                                                                
Jump Drive                             1    1       200       800
Manoeuvre D                            1    1       200       300
Power Plant                            1    1       300       900
Fuel, #J, #weeks    J-1, 4 weeks            1     1 100         
Purifier                                    1        33         0
                                                                
Bridge                                      1       200        50
Computer            m/4                4    1         4        30
                                                                
Staterooms                                 47       188        24
                                                                
Cargo                                             7 775         
                                                                
Nominal Cost        MCr 2 913,68         Sum:     7 775     2 914
Class Cost          MCr   611,87        Valid        ≥0        ≥0
Ship Cost           MCr 2 330,94                                 
                                                                
                                                                
Crew &               High     0        Crew          Bridge    10
Passengers            Mid     0          47       Engineers     7
                      Low     0                     Gunners     0
                 Extra SR     0      Frozen         Service    30
               # Frozen W     0           0          Flight     0
                  Marines     0                     Marines     0
                                                                
                                                                
Estimated Economy of Ship     Standard                                     
       Ship price     Down Payment         Mortgage       Avg Filled
     MCr 2 330,94      kCr 466 189        kCr 9 712              80%
                                                                
Expenses per jump                       Revenue                 
Bank              Cr 4 661 888          High         Cr         0
Fuel              Cr   110 000          Middle       Cr         0
Life Support      Cr    94 000          Low          Cr         0
Salaries          Cr    80 640          Cargo        Cr 6 220 000
Maintenance       Cr    93 238                                   
Berthing          Cr    10 000                                   
                                                                
Summa            kCr     5 050                      kCr     6 220
                                                                
     Income potential per jump     kCr 1 170                   
  Yearly yield on down payment      6,3%

 

[AnotherDilbert]

With Z drives, it's much more profitable at J-2:
5 kDt, J-2
15% ROI

MT-E622232-000000-00000-0        MCr 792       5 000 Dton
bearing                                           Crew=28
batteries                                           TL=12
                    Cargo=3489 Fuel=1020 EP=100 Agility=1

Single Occupancy                                  3 489       990
                                     USP    #      Dton      Cost
Hull, Streamlined   Custom             E          5 000         
Configuration       Flattened Sphe     6                      400
Scoops              Streamlined                                 5
                                                                
Jump Drive          Z                  2    1       125       240
Manoeuvre D         Z                  2    1        47        96
Power Plant         Z                  2    1        73       192
Fuel, #J, #weeks    J-2, 4 weeks            2     1 020         
Purifier                                    1        31         0
                                                                
Bridge                                      1       100        25
Computer            m/3                3    1         3        18
                                                                
Staterooms                                 28       112        14
                                                                
Cargo                                             3 489         
                                                                
Nominal Cost        MCr 990,16           Sum:     3 489       990
Class Cost          MCr 207,93          Valid        ≥0        ≥0
Ship Cost           MCr 792,13                                   
                                                                
                                                                
Crew &               High     0        Crew          Bridge    10
Passengers            Mid     0          28       Engineers     3
                      Low     0                     Gunners     0
                 Extra SR     0      Frozen         Service    15
               # Frozen W     0           0          Flight     0
                  Marines     0                     Marines     0
                                                                
                                                                
Estimated Economy of Ship     Standard                                     
       Ship price     Down Payment         Mortgage       Avg Filled
       MCr 792,13      kCr 158 426        kCr 3 301              80%
                                                                
Expenses per jump                       Revenue                 
Bank              Cr 1 584 256          High         Cr         0
Fuel              Cr   102 000          Middle       Cr         0
Life Support      Cr    56 000          Low          Cr         0
Salaries          Cr    51 360          Cargo        Cr 2 788 000
Maintenance       Cr    31 685                                   
Berthing          Cr     5 000                                   
                                                                
Summa            kCr     1 830                      kCr     2 788
                                                                
     Income potential per jump     kCr 958                   
  Yearly yield on down payment     15,1%

 

[Grav_Moped]

You're answering a slightly different question than I asked, but that's cool.

LBB2 ships gain scale efficiencies up to maximum allowed size, except to the extent that the "very large ship" minimum crew size rules (size not actually specified) starts to kick in -- and probably even then, since even before the TL-15 drives become available the power plant fuel requirements become almost token.

For LBB5 drives (which would be necessary for drive-1 in 2000Td below TL-12, 3000Td below TL-13, and 4000Td below TL-15), everything is proportional to tonnage (directly or indirectly) except command crew and spinal weapons.