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ORIGINAL: Graymane

ORIGINAL: fcharton

ORIGINAL: n01487477
The table above shows you the pertinent efficiency info Fuel/Mile and cargo(F/M). Higher numbers are better for Cargo(F/M) and lower is better for fuel/mile.

I believe Cargo (M/F) is the right measure, here.

re speed, I think the general idea is that if you double cruise speed, you divide by two the number of convoys at sea at any given time, and therefore fuel usage (convoys loading and unloading are docked, and use no fuel). So perhaps the correct "unit of efficiency" for shipping lane fuel usage (under constraint of port load rates) would be something like

Cargo size x Speed x Endurance / Bunker capacity

under constraints (one day loading/unloading time)
ship tonnage < min ship port rate
nr of ships in convoy < min dock size / ship tonnage
nr of ships in convoy < min total port rate / ship tonnage

(interestingly, the unit here is something like squared miles per hour which corresponds to viscosity in fluid mechanics, not sure how to interpret this...)

Francois

Actually, this is very close to what the railroad industry uses to measure the efficiency of a train. I think it is also the right measure that we are after. Very good job Francois [:)] Let's make an example so it hits home for people like me!

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                     Speed     Fuel Cap     End        Cargo
 Ship 1             08          500          2000        100
 Ship 2             16          500          2000        100
 

So, whatever measure we use, Ship 2 should generally be twice as good as Ship 1.

Here are some questions we want to answer:

• How much cargo can we move per day? Speed * Cargo
• How far can we move this cargo without refueling? End * Speed * Cargo
• How efficient is that movement? End * Speed * Cargo / Fuel

Code: Select all

                     Speed     Fuel Cap     End        Cargo      Daily Cargo      Cargo         Efficiency
                                                                  Distance        Distance
                                                                                 
 Ship 1             08          500          2000        100           800          1600000          3200
 Ship 2             16          500          2000        100          1600          3200000          6400
 

So in this case, the efficiency measure shows Ship 1 is twice as good as Ship 2. Doubling/Halving any of the other parameters should essentially show the same thing. i.e., if Ship 2 has End of 1000, it will have an eff of 3200, same as Ship 1. Double Ship 1's cargo will make up for the speed, etc.

It is important to note that this only makes sense under the constraints. In other words, if you don't move the full endurance, the effiency is not accurate, you'd have to substitute the actual Endurance of the trip if shorter.

ORIGINAL: USS America

Damian, I think if you are writing about the ships, you should use their max endurance, but if you are writing about planning a convoy between point A and point B, then that distance would be the endurance used.

ORIGINAL: USS America

Graymane, the railroad reference and your location cause my spider sense to tell me there is (or was) a very large yellow employer involved in your career.  [;)]

ORIGINAL: n01487477

ORIGINAL: USS America

Damian, I think if you are writing about the ships, you should use their max endurance, but if you are writing about planning a convoy between point A and point B, then that distance would be the endurance used.

I think your right, and I can do both with Tracker. But I am wondering if I should define speed as hexes_per_day or average(max + mission,0). And in which case also define Endurance as MaxHexes.

Thanks

ORIGINAL: Graymane

ORIGINAL: n01487477

ORIGINAL: USS America

Damian, I think if you are writing about the ships, you should use their max endurance, but if you are writing about planning a convoy between point A and point B, then that distance would be the endurance used.

I think your right, and I can do both with Tracker. But I am wondering if I should define speed as hexes_per_day or average(max + mission,0). And in which case also define Endurance as MaxHexes.

Thanks

Hmm..interesting. Do people run convoys at anything other than cruise speed?

Hexes probably makes more sense.

Also, I'm sure the manual says something about max speed using more endurance per turn and I don't see that you factor that in. I don't have access to it right now to verify.

ORIGINAL: Graymane

Hmm..interesting. Do people run convoys at anything other than cruise speed?

ORIGINAL: Mike Solli

ORIGINAL: Graymane

Hmm..interesting. Do people run convoys at anything other than cruise speed?

Mission speed for me.

ORIGINAL: n01487477

Also done some testing on this and found small differences but not enough to cause a rewrite so far. Some info on the WITP-AE screens does seem wrong however. Take Yusen N Cargo - 7 hex/day according to game but in testing 90% of the time it travels 8.

ORIGINAL: rader

This looks like a really informative summary, nice [:)]

ORIGINAL: n01487477

ORIGINAL: medicff

Thanks Damian,

I have starting learning the Japanese side and production and this helps a lot.

I have tried to change the research of planes to existing production models (for example the nicks at Kobe into the Ki431c) but the new beta doesn't give current production planes as a choice to convert to. How do you do this or has this changed in the betas?

Thanks

Pat

You need to change the R&D mode fromn realistic to Off. Under realistic R&D you have facilities just devoted to R&D and these can't be converted to production factories. With this option OFF you can do as you please.

IIRC Realistic R&D factories once they become production factories (the model they're researching becomes available) they can then be used as production, but can not convert back to another R&D model ... It's been a while since I played with this switch so I'd llike to double check this last point under the beta.

ORIGINAL: paulk205

I'll probably sound like a typical greedy newbie, but what the hell, I need to ask...

This is a wonderful document for someone like me who has been nibbling around the edges of this monster game and many thanks for your hard work in compiling it. So far I have only played as the Allies vs the AI but I'd love to give Japan a crack, mostly for the counterfactual fun (attack Manilla instead of PH etc). But the economy completely daunts me and I really haven't got the time for learning through trial and error. I've tried to use this document as a starting "recipe" but I'm still making too many mistakes. Experienced players like you here already have the sensitivities of the system in your blood, but for a newbie it's still a recipe - too many parameters are in play. Soooooo...

Would a Turn 1 save (Scenario 1, vs AI, non-historical first turn) with all the initial economic work done, but without any military moves performed, ever be made available by one of the kind souls in the forum? I can't think of a better way to learn than by comparing the initial set up with something like what is is described in this document.

OK, let me now wear my tin hat. Ready. Flame away... [:D]