There were two categories of Zatsuyosen. (Ko) category with an IJN Captain as supervisor aboard and (Otsu) category without.
 Five surviving members of VP-44’s P-12's aircrew were rescued at 1455
(local) 6 June by PBY-5 of VP-23. But unfortunately one of them died the next
day, bringing the total KIA to six. VP-44’s PBY P-12 was the only PBY lost in
combat with Japanese forces during the battle of Midway.
Thanks go to Gengoro S. Toda of Japan. .
Gilbert Casse, Bob Hackett and Peter Cundall
IJN Transports Page