When you have large quantities of fuel at a base and port is too small, solution might be disbanding some ships in the port nearby (Palembang- Oosthaven for example). Ships in port increase base fuel demand so you will be able to load fuel at two places. It only works for fuel, you can't influence flow of oil and resources that way.
Increasing port size and putting important HQ like Southern Army is the only way to influence flow of oil and resources.
In china I moved the North China Army Hq up past Sian to support northern ops. In the center likewise I moved the China army HQ to Ichang to support ops. I have had a drop in resources at Port Arthur and Shanghia. Could the movement of these HQs have effected resource movement??? I could move the Kwangtung Army HQ to port Arthur to see what happens. When u take an enemy city the city falls under the control of the army/navy HQ w/the largest occuppying AV. I would bet when the HQ is located in a major port all resources from the conqured cities flows to these HQs.
My guess is based on the premise that is the same as when a TF belonging to 4thfleet has a button to allow it to return to the city where the 4th fleet is located. If u move the 4th fleet Hq then the selection changes to a new base location. Same logic for oil and resources.
So many questions in this thread, I'll try to answer at least some of them:
- While major HQ pulls stuff, one even more important thing is that base has to have a port... and port should be a large one. Since you have moved your HQs inland I doubt they have pulled oil and resources with them. You can check that easily, just look at stockpiles at their current locations.
How big was drop at Port Arthur that you mentioned? Maybe you were loading resources at some port in the area and you drained it for local resources, which got replenished from Port Arthur? All bases with industry try to stockpile some reserves for future production, don't know the exact ratio but it might be something like enough to cover 10 days of production. If you load those reserves on ships AI will try to bring them in again from nearby location where there is excess.
In general resources in Port Arthur should rise steadily, you should be able to lift at least 150k resources every week or so.
- Next thing, Amoral mentioned G3M3 Nell with radar in 42/5. Actually that is a common mistake by players, that radar becomes operational in 44/6. However even without that radar I consider G3M3 to be superior to G4M1 Betty so here is how I produce them:
41/12 - producing G4M1, G3M2 stopped but factory not converted, waiting for 42/5
42/5 - converting G3M2 to G3M3 (should happen automatically, you can do it manually once May starts for no cost) and starting its production, stopping G4M1
44/1 - stopping G3M3 and converting those factories to something else, starting G4M2 production
- Engines: ha-32 and ha-33 are somewhat linked, because various planes that replace each other switch from one engine to another during several years. Depending on your choice of aircraft numbers might differ, so best thing to do is go to Air Production tab in tracker, select Engines tab and then click on Planning. Click on each engine that interests you and sort planes that use it by availability date. That you give you general idea what to expect in months to come. To answer another question, by producing ha-33 when Nell production was stopped you did not waste anything as you will surely use those engines in the future (Emily needs 4 of them per plane for example)
- Stop Nakajima Kotobuki. Don't change factory to anything yet, wait for the time when you need to increase production of one of your engines and then see if you should maybe convert those that you stopped instead of increasing production in existing ones.
- Zero losses: So far most of the losses were surely operational losses. When those happen over friendly territory pilots have quite high chance of survival. Once the fight intensifies percentage of killed pilots will unfortunately rise...
- IJA bombers: Forget Ki-48 Lily, you need larger bombs and bombload. I suggest producing Ki-21 Sally until 42/9 when Ki-49 Helen with armor becomes available, then you should convert Sally to Helen and produce only Helen from that point onwards. There is one Helen version in 42/4 as well, it has 1 hex shorter range than Sally and in every category seem to be worse plane than Sally, except for slightly better defensive armament which is irrelevant.
For some reason in my PBEM I have switched Sally to that version of Helen on 42/4 and I see now it was mistake. Oh well.
Note that Helen needs its own engine, which no other plane in the game uses.
- Oil: I don't think Japanese player can ever bring enough oil back to HI to keep refineries 100% busy, so oil level will keep dropping since everything you bring in will be used and then some. However, that is not the end of the world, as industry needs fuel to work, not oil, so as long as you bring enough fuel from DEI you should be ok. Japanese players in general ship fuel first, only when DEI bases are sucked dry of fuel they start moving some oil back to Japan. Never shut down refineries, they don't cost anything but oil. When I think of it I don't think you can even shut them down at all.
As for the answer on how much oil is converted into fuel go to Industry screen in tracker, then select Witp Chart tab. In the upper right corner of the chart is oil, numbers you see there are from your actual game. Look for circle with Fuel +/- in it, that's the net result before fleet consumption.
- Few more things:
1. Watch for port capacity, never use TF that is larger than the port you use can support.
Sizes per port level: (Manual page 109)
1 - 9000
2 - 12000
3 - 24000
4 - 48000
5 - 60000
6 - 84000
7 - 104000
8 - 128000
9 - 172000
10 - 196000
When forming TF first select escorts, then fill it with transports until you get close to desired TF size for your target port. This limit suggest that two ports that have convoy between them should be of the same size to maximize efficiency.
2. There is some automatic daily transfer of every 4 resources (supplies, resources, fuel, oil) between two adjacent ports (Manual page 212). It is 500 x size of smaller port for supplies and resources and 100 x size of smaller port for fuel and oil. Therefore you should build some of the important bases up. If for example you build Tsushima to port size 4 (its maximum) you will connect Fusan in Korea with Japan and 2000 supplies and resources and 500 oil and fuel will flow in every day (not sure about Fusan port size at start of the game, if it is smaller than 4 it should also be increased to at least 4 (increasing it to its SPS maximum might bring in additional resources and oil which is handy since Japan in just 2 hexes away). The other good place for this is Ominato - Hakkodate link, it is even more important to increase these 2 ports to level 7. I also try to increase ports on Shikoku that have contact with bases on Honshu and Kyushu.
There are probably dozens of things I currently can't remember but for now this wall of text will have to do...