From: La Salle, Colorado
Historically Chitose conversion took about 11 months, Chiyoda conversion took about 10 months.
Absolutely ! But then, those vessels were built with integral hangars, workshops, aviation armory, avgas tanks, etc., so maybe it wasn't quite as simple as taking a chain saw to the topsides and replacing them with a flat top, it wasn't conceptually that far off the mark.
A cruiser warship had none of that stuff and it would have taken literally years to make it realistically happen. That's why the Ise took 8 months to have two turrets pulled and a half baked seaplane flight deck and hangar installed, 'above deck'. Woof !!
I truly would forget that nonsense. Because 'non' sense is what it is (or what it isn't, or something; I hate subjunctive negatives). Anyway, I think it's not a good idea
JWE: I had not seen this Posting. How long--during the war--did the actual conversion of Mogami take?