Board Thread:Fleet's Prepared-ness/@comment-27042419-20151215082203/@comment-26486243-20160112094210

Suisei 12A + Suisei (601 Air Group) + Suisei (Egusa Squadron) + Type 99DB = At least 8 - 2 per carrier, 2 carriers per support expedition, 2 types of support expeditions. Might need more if your carriers need more bombers to hit firepower cap.

Ryuusei Kai - In general, you'll be using 2-3 torpedo squadrons per carrier, the other slots being scout aircraft, fighters, SCAMP or FCF. The maximum number of carriers you'll sortie tends to be 4, and only in Carrier Task Force combined fleets. Thus Murata + Tomonaga + Ryuusei Kai = At least 8, preferably 12. Or you could just use 8 top tier torpedo bombers and just keep 4x plain Ryuusei for spares, since you'll have a lot of these while making Ryuusei Kai.

Cheapest combined recipe for SS12A and RSK is 20-60-10-100, which will produce each of these at a 2% rate. 110 bauxite is only if you need Saiun, otherwise you can just save the bauxite (and some dev mats) with the 100 version for no known difference in drop rate.