Thread:Hayashi H/@comment-26486243-20151214101826

This doesn't merit a full blog post, so a wall post will do.

Assuming the ASW multiplier for ASW gear is 1 (not proven), A lvl 63 Inazuma Kai with 2x Type 4 Passive Sonar 4★ + Type 3 Depth Charge Projector ★ (What I'm using at the moment) will deal: Under these circumstances, an Admiral should choose Line Ahead if Inazuma is NOT chuuha, Double Line if Inazuma is chuuha, and abandon sortie if Inazuma is taiha (kuso risk). Since there's only a 1/3 chance of the submarine even appearing to begin with, the power of the surface fleet should not be compromised any further than these values. 
 * 94.3 raw ASW damage
 * Line Ahead:
 * 56 damage Parallel
 * 45 damage Head-on
 * Chuuha numbers are too low to be viable, Taiha and Red T numbers are too low to be viable. In those cases, the quest is lost unless critical hit occurs, repeat.
 * Double Line:
 * 75 damage Parallel, good health
 * 60 damage Head-on, good health
 * 52 damage Parallel, chuuha
 * 42 damage Head-on, chuuha
 * Taiha and Red T numbers are too low to be viable. In those cases, the quest is lost unless critical hits occurs, repeat.
 * The submarine faced has 30 Armor 37 HP
 * Minimum damage required to sink: 40. (Hits 19 + 19 damage with two subsequent activations of 21 Armor).
 * Maximum damage required to sink: 58. (Hits 19 + 19 damage with two subsequent activations of 39 Armor).
 * Average recommended damage required: 49. This value is exceeded both by healthy Line Ahead Parallel and chuuha Double Line Parallel, while the minimum values are also exceeded in both cases with Head-on.