Sid and I disagree quite markedly about what should and shouldn't be done, where the parameters of play should be etc etc and so we felt it would be interesting to carry that sort of disharmony into a PBEM game with one commanding the IJA and the other the IJN - mirroring historical reality as it were. Sid is going to command the IJN while I will command the Army. Since one of my main interests in AARs is figuring out the WHY behind the action Sid and I have agreed ( as much as we ever agree about anything at least) to hold ALL our game-related discussions here. This will probably result in a long thread with many posts but it should also clearly show the evolution of plans etc... which I hope will be interesting.
The first thing we have agreed to tackle will be plane upgrade paths and general plane upgrades. I'll number them so you can just agree/disagree to the numbered points in a follow-on post.
1. Dive bombers.
As far as I can see no divebomber chutai, sentai or daitai can upgrade to anything other than a divebomber. In essence this means that D3As upgrade only to D4 Judys. Ki-51 Sonias can only upgrade to Vals or Judys. In essence this means that we should upgrade the navy planes first and then upgrade all the army dive-bomber suadrons to the latest model navy divebomber. This will give us a large reserve of divebombers which can be used to replenish carrier airgroups after carrier battles.
2. Single-engined torpedo bombers.
All single-engined torpedo bomber squadrons are under IJN control so apart from upgrading to the most current type ( apart from training kokutai which can use the B4 Jean until it is used up) I see no real choices to make here EXCEPT for the choice of whether or not to upgrade to the B5N2-Q ASW variant... I would argue that this shouldn't be done as the B5N2-Qs range of 2 hexes for ASW work is abysmal ( maximum ASW range is half of effective range) and we would be far better served by using the squadrons as ready replacements for carrier torpedo-bomber losses - which are likely to be extremely heavy, especially once VT-fused shells enter the picture. In addition I think there are so many level-bomber squadrons out there that we could easily get the same number of ASW planes ( each having greater range and more depth charges) with a much smaller relative apportionment of the level bomber force. So, all in all it makes no sense to apportion a significant portion of a rare and valuable commodity ( planes which can swap into CV airgroups) when one can do the job better with a relatively smaller portion of a common and less valuable commodity ( a twin-engined bomber daitai).
P.s. Ki-49Q durability in RHS EOS is wrong. It is 10. It should be 20.
3. Twin-engined army bombers.
Until the Ki-49 appears on the scene in August 1942 all Army bombers are unarmoured with no clear winner in which is most useful.
The Ki-36 is actually a quite useful strategic bomber over China... resource hits are a function of number of bombs dropped and not their weight/destructive potential.
The Ki-48 auto-upgrades to the Ki-45 Nick, a useful plane, and is arguably on a par with the Ki-21 when attacking land targets by virtue of its 8 x 50 Kg bombs which guarantee significantly more hits per bomber sortie, although with less destruction per hit. Obviously, versus ships, the Ki-48 is much inferior as its bombs do not penetrate.
The Ki-21 Sally has excellent range and auto-upgrades to the Ki-67 in May 1944.
So, from the point of view of what to do with the production of Ki-36s ( 17 per month), Ki-48s ( 30 per month) and Ki-21s ( 30 per month) I suggest just leaving them be until September 42 at which time the Ki-36 can be changed to something else while the Ki-48 and 21 are turned off to await auto-upgrades.
Come August 1942 what should happen?
I would suggest leaving production as it is and waiting for the Me-264 to become available in September 1942. For a 40% increase in HI it carries 5.33 times more bombs to 3.66 times the range... It is simply a far, far better bomber than the Ki-49 and also significantly more efficient in terms of the amount of HI and supply utilised to drop a given weight of bombs on a given target. With similarly experienced crews 5 Me-264s will deliver the same weight of bombs to a target as 27 Ki-49s. In addition a greater % of the Me-264s will be able to penetrate CAP, survive FlAK damage and make it back to base. These are benefits which are obvious even within the normal range of the Ki-49 but beyond a range of 12 hexes the benefits are even greater as targets which the Ki-49 cannot even reach are now within range of devastating attacks. Range is a force multiplier and the Me-264 gives us that range.
Once it comes along I plan to convert any Japanese Army Bomber Daitai/Chutai not currently flying Bettys or Nells to the Me-264. To put it into perspective building 115 Me-264s per month ( which seems like a massive investment of HI) consumes in one 30 day month only a bit over 10,500 HI. This is the exact same HI cost as is taken up in that month by a single Taiho class CV. Or to put it another way, if Japan were to suspend the CVs and BBs in its shipbuilding programme and begin building 4-engined bombers on Day 1 it could produce 830 Me-264s per month for the same cost per month as the halted BBs and CVs/CVLs. Not that I'm suggesting we do that, just illustrating that while efficiency is an argument the Me-264s really aren't that inefficient especially since 115 Me-264s are likely to cause more grief in one month than a single CV.
Other than that the auto-upgrades take care of the rest. The Bettys upgrade to G7Ms or P1Y1 Frances while the Ki-21 upgrades to the Ki-67 Peggy. All have their places... The only thing I think is non-negotiable is producing a large force of Me-264s. The cost is of such a force is not that high when one looks at the cost of other things in the economy.
E.g. At game's start the CV Taiho is 820 days from completion. With a durability of 115 this will cost 282,900 HI ( or the equivalent of 23.4 days of Japan's entire industrial output). For the same HI cost over the same time one could build 3143 Me-264s... I happen to be of the opinion that 3,143 Me-264s will help the war effort more than a single Taiho class CV
4. Recon Planes.
Upgrade to the latest available. Simple, no real choices to make here.
5. Transports.
A mix of Tabbys ( good range with high payload) and Liz ( 40% more cost than a Tina but over four times the payload) seems to be the right mix here. Fortunately this seems to cover every squadron I've looked at in RHS.
6.Floatplanes etc.
Float fighters - just go with the best available at the time. The Pete is almost utterly useless and just serves to get pilots killed IMO. I beach them and save the pilots for Rufes.
Float Planes. Either the Jake or Alf. I think that the extra range and larger number of ( albeit smaller) bombs makes the Alf the better plane but it is your choice as it is a purely navy plane.
Patrol Planes... Just go with the most modern. A nice big fleet of transport Mavises would be nice. They are worth their weight in gold IMO.
7. Fighters.
Now it gets a bit contentious. From previous discussions I think we are both agreed on the need to build up a sizable pool of Ki-43 IIs and A6M2 before they auto-upgrade, the first to act as Kamikazes, the latter to at as long-range escorts so as to allow bombers to launch in 1943/44 etc.
I see the IJA upgrade path as being Me-109 to Ki-44II to Ki-44 III. Why on earth they "upgrade" the Ki-44 III to a substantially inferior plane in February 45 ( A7M2 - slower, less manoeuvrable, smaller rate of climb and lower overall ceiling) is beyond me. Same thing happens with the Jack. It is faster and more manoeuvrable than the George and yet gets "upgraded" to it without the player having any say. Seems silly to me.
Your upgrade path is fixed with the A6M2 going to the A6M5 and then the A6M7 as far as carrier-based planes go... Obviously the Ki-44 III is far superior so should be used instead of any of those planes.
I do note one amusing error in the mod which should be fixed. After the Ki-44 III and A6M2 upgrade to the A7M2 ( an inferior plane to the Ki-44 III) there doesn't appear to be a carrier-usable plane in production on the Japanese side... Perhaps you should just forget about the Ki-44 III auto-upgrading at all. That would make most sense and result in a reasonable plane being able to operate from Japanese CVs.


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