QUOTE(air @ Mar 15 2017, 11:21 AM)
ya +7 AA +4 bombing that one, normal version only +4 AA
these kind of mixed bombers, must deploy in large numbers, its either ALL-IN or NEVER.
Due to its lower tier on normal version, wont easily lose rank when kena wiped.
maximum deploy-able numbers is 14+14 slot (4CV/L/B + 4LBAS with Saiun + Type 2 + Catalina up to 6-7 range), very crazy wipe out rate against smaller ships.
improve 1-6 => eating 2 X type52
improve 7-10 => eating 2 X suisei
Both version same consumption.
Sounds crazy usage on screws, if you only aiming to improve 4 units type 62, can drop the idea, I intend to make at least 14-16 unit +MAX improvement. (This is 1 of the possible upgrade without gambling resources a lot, while waiting 41cm/46cm)
Q: What do I gain by going thru all these trouble/cost?
A: I am very lazy to calculate airpower + bombing damage and rates on smaller/larger, deploy all type62 and bomb enemy ships with all slots.
i see...
never use these in large quantity before
but now i already got a few green plane that is better than reppu, so i guess maybe i can do this quest as well...
if improve the green plane 零戦52型丙(付岩井小隊) before the conversion to red plane, need 2x type52 (i think suisei easier to find than type 52

)
but i already scrap quite a lot of suisei last time
i found a
link here about akashi improvement
from this website, the red bomber got better anti air after improvement...
for my akashi improvement, currently i doing the green gun from roma kai/Italia...
and develop more saiun, want to get the jet