ORIGINAL: Zemke_4
At the risk of sounding very dumb about the Japanese prodution system, I have a few questions for the "experten" out there.
Is is worth it for Japan to invest in increased ship repair? I am playing one PBEM where I did a significant increase in the ship repair yard in Tokyo, the up grade too a long time to take effect and during that time I had very few supplies, but now Tokyo is producing double the repair points it was at the start, did I make a mistake, should I have not created the SUPER repair yard?
I never use all the repair yard capacity that I have, but I tend to have games where my losses among the IJN are light. The advantage of a super repair yard is that you don't have to manage it as much. You just dump x durability points into the yard and leave it alone. If ship durability > 4 x repair yard size, then the ship will not benefit from the repair yard. The highest durability ships are 185 pt Yamato class, so a 45 point shipyard could do repairs on the Yamato, though repairs would be infrequent. The other advantage of a super yard is that it is esier to protect. You can CAP it more powerfully if you use only one and you don;t have to worry about ships transitting sub infested waters to disperse to multiple repair yards. The disadvantage is that too many smaller ships will sap all the repair points and leave you unable to repair the biggies. So the best thing to do is probably to put the big guys in Tokyo, then take their escorts to another port for repair.
ORIGINAL: Zemke_4
I also increase the Naval ship yard size in Tokyo with the hope that it would give me faster ship production coming out of Tokyo, again did I make a mistake in thinking this?
As far as new ship production is conerned, the location of the naval shipyard does not have an effect upon production speed at a given location. Only your pool of Naval build points matters. To the extent that your increase allows accleration of individual ships, it will have an effect, but otherwise there is no advantage to haviing a bigger yard in Tokyo.
ORIGINAL: Zemke_4
Supplies seems to build up very slowly for me in Japan, granted I have various factory changes in effect or factory increase in effect, which I suspect is the problem, or is Japan supply production just very slow?
Expansion saps supply production big time. I try to have no more than 10 factories repairing per day, though I exceed this in the first few weeks of the war.
ORIGINAL: Zemke_4
R and D of new plane types. I have read that one should start R&D on future planes, while at the same time I have read in some "Guides" to stop R&D on future planes. What should I be doing?
It is up to you. R&D may result in very little benefit at very high cost. Due to the likelihood of little payoff, many recommend not conducting research. However, research into an airframe that you plan to produce in large numbers is not bad. I would not research any plane where I wasn't going to field at least 1000.
Expansion of Japanese industry is something you really need to be careful with. Each point of repaired industry costs 1000 supply. Supply is very important in WitP. If you don't have it, planes don't fly, ships don't rearm, replacements don't fill out airgroups, troops fight at 1/4 strength, etc. It is a Bad Thing(tm). Another big determining factor in expansion choices is your PDU setting. If PDU is on, you take a different approach than if PDU is off. I will assume PDU is on. Finally, your choices depend upon your "gaminess" setting for the game. Conversions of IJA DB to LBA and Glens to Alfs are a question mark. Personally, I do not have a problem with IJA DB's converting, but do have a problem with Glens converting to Alf's (though converting Alf's to Glens is okay). What you do is up to you and your opponent.
1. Initally, I highly recommend increasing A6M2 production. Most of your kills early war will come from the Zero and you have roughly 500 spots for Zero pilots. Putting your pilots in Zeros ASAP is vital because the only resource more critical to you than supply and oil is pilots. Pilots in Zeros die more slowly than pilots in Claudes and they take more enemy pilots with them when they die. To do this, don't expand the existing factories. I recommend:
- Convert the L1N1 plant in Tokyo to A6M2 and expand to 16-20
- Convert the A5M4 plant in Nagasaki to A6M2 and expand to 16-20
- Convert the F1M2 plant in Tokyo to A6M2 and expand to 16-20
- Convert the E13A plant in Kitakyushu to A6M2 and expand to 16-20
- Convert the E13A plant in Hakodate to A6M2 and expand to 16-20
- Convert the E13A plant in Hiroshima to A6M2 and expand to 16-20
2. If you choose to allow IJA DB to upgrade to LBA
- Halt Sonia production in Tokyo and Nagoya
- Halt Lily production in Kyoto
- Double Sally production at Nagoya
3. Choose your primary transports. I tend to stick with L2D2 and L3Y for the Navy and the Ki-57-II for the army. I produce at one plant for each and expand if necessary. The rest I use to expand production of other aircraft or for r&d.
4. Halt the production at obsolete factories, or convert to r&d.
- The Ki-36 plant at Tokyo
- The Ki-57-II plant at Toyama
- The Ki-54 plant at Tokyo (After you have produced 36 to equip the 108th Tpt. Sentai - usually around Jan 12, 1942.)
- Halt the Ida plant at Tokyo
- Halt the Nates at Harbin and Gumma
5. Convert engines to Nakajima
- Convert Ishiwakajima engines at Tokyo to Nakajima
- Convert Nissan engines at Tokyo, Shimizu, and Hamamatsu to Nakajima
- Convert Hitachi engines at Tokyo to Nakajima (after producing enough engines to build out the Ki-54's)
6. Decide upon an August 42 fighter. You will get the Tony and the Tojo in August 42. The two fighters are very similar and each has it's own advantages. If you forego the Tony, convert the Kawasaki plants at Maizuru, Osaka, Hakodate, and Kitakyushu to Nakajima. Also consider ramping up production of one of the two after you capture Palembang, Brunei, and Balikpapan. If those are substantially damaged, do not expand anything until they are well on their way to being repaired.
7. Halt the H6K4 Mavis and expand it to 32. It will auto convert to the H8K in early January. When it does, restart production.
8. Halt the Nell plant until it auto converts to G4M1's, then restart.
9. Expand all armaments plants below 25. This can wait til after the oil centers are captured.
10. Expand all vehicle plants to about double the current production. This can wait too.
11. Use halted plants to condust R&D on aircraft you want sooner or to produce more of ones you want more of, but be careful about repairing them until you know the state of the oil centers.
Once you capture the SRA, you want to look at the number of damaged oil centers. If you do not capture Palembang, Balikpapan, and Brunei mostly intact, you don't have the oil production to support much industrial expansion.